Agenda packet, regular meeting — Hermosa Beach City Council, February 25, 2025 (part 7 of 12)

74 Except as stated above and not in conflict with this endorsement, nothing contained herein shall be held to waive, alter or extend any of the limits, agreements, or exclusions of the policy to which this endorsement is attached.

Endorsement Effective Policy No.

No. Date

TYPE OF COVERAGES TO WHICH POLICY PERIOD

LIMITS OF

THIS ENDORSEMENT ATTACHES FROM TO

LIABILITY
Scheduled items or locations are to be identified on an attached sheet.

The following inclusions relate to the above coverages includes:
( ) Owned Automobiles ( ) Owned, Non-owned and Hired Automobiles ( ) Non-owned Automobiles
( ) Hired Automobiles
A deductible or self-insured retention (strike out one) of applies to coverage.

DEDUCTIBLE APPLIES PER CLAIM, PER OCCURRENCE

INSURANCE COMPANY
ADDRESS:

I, , (print name) hereby declare under penalty of
perjury, under the laws of the State of California, that I have the authority to bind the above-named insurance company to this endorsement and by my execution hereof, do so bind said company.

Signature of Authorized Representative (Original Signature only; No facsimile signature or initialed signature accepted) Executed at , on , 20 .

Phone No.: ( )

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75 I. INSTRUCTIONS FOR COMPLETING, EXECUTING, AND SUBMITTING

EVIDENCE OF INSURANCE TO THE OWNER
CIP NO. 603 South Park Slopes & Irrigation Repairs
Insured: Date:
(Contractor, Lessee, Permittee, etc.)
Insured
A. In order to reduce problems and time delays in providing evidence of insurance to the City, you are requested to give your insurance agent or broker a copy of the attached Insurance Requirements and endorsement forms along with these instructions for completing, executing, and submitting evidence of insurance.

If the agreement requires Workers' Compensation coverage and you have been authorized by the State of California to self-insure Workers' Compensation, then a copy of the certificate from the State authorizing self-insurance for Workers' Compensation shall meet the requirements for Workers' Compensation insurance covering activities within the State of California.

All questions relating to insurance should be directed to the department or office responsible for your Contract, lease, permit, or other agreement.

Insurance Agent or Broker
B. The appropriate Endorsement Form shall be used. No changes in the terms of the Endorsement will be permitted. Certificates of Insurance alone will not be accepted by the City.

More than one insurance policy may be required to comply with the insurance requirements.

Endorsement forms appropriate to your insured's Contract, lease or permit are checked below and enclosed.
( ) Workers' Compensation/Employers Liability
( ) General Liability
( ) Automobile Liability
( ) Excess/umbrella Liability
( ) Professional Liability
( ) Property insurance
( ) Fine Arts Property Insurance
You shall have an authorized representative of the insurance company sign the completed endorsement forms, note his phone number at the bottom of page 2 and have said representative transmit the forms to the City. Signatures must be originals as the City will not accept facsimile (rubber stamp, photocopy, etc.) or initialed signatures.

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76 The name of the Insurance Company underwriting the coverage and its address shall be noted on page 2 of the endorsement form.

The "General description of agreement(s) and/or activity(ies) insured" shall include reference to the activity and/or to either the specific City Contract number, lease number, permit number or construction approval number.

The coverages and limits for each type of insurance are specified in the attached sheet of insurance requirements. When coverage is on a scheduled basis, then a separate sheet is to be attached to the endorsement listing such scheduled locations, vehicles, etc., so covered.

Endorsements to excess policies will be required when primary insurance is insufficient in complying with the City's requirements.

If there is insufficient space on the form to note pertinent information, such as inclusions, exclusions or specific provisions, etc., a separate sheet may be attached.

When additional sheets are attached, change the number of pages at the bottom of the form.

Completed Endorsement(s) and questions relating to the required insurance are to be directed to:

Risk Management
City of Hermosa Beach
1315 Valley Dr. Hermosa
Beach, CA 90254
(310) 318-0202
Improperly completed Endorsements will be returned to your insured for correction by an authorized representative of the insurance company.

DELAY IN SUBMITTING PROPERLY COMPLETED ENDORSEMENT FORMS MAY

DELAY YOUR INSURED'S INTENDED OCCUPANCY OR OPERATION UNDER AGREEMENT WITH THE OWNER.

For extensions or renewals of insurance policies which have the City's Endorsement Form(s) attached, the City will accept a copy of the endorsement (with an original signature) to extend the period of coverage as evidence of continued coverage.

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77 J. WORKER'S COMPENSATION INSURANCE CERTIFICATE
CIP NO. 603 South Park Slopes & Irrigation Repairs
The Contractor shall execute the following form as required by the California Labor Code, Sections 1860 and 1861:

I am aware of the provisions of Section 3700 of the Labor Code which require every employer to be insured against liability for workers' compensation or to undertake self-insurance in accordance with the provisions of that Code, and I will comply with such provisions before commencing the performance of the work of the Contract.

DATED:

CONTRACTOR:

By:

Signature

Title
ATTEST:

By:

Signature

Title

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78 K. SUPPLEMENTAL INFORMATION TO BE COMPLETED BY PRINCIPAL CIP NO. 603 South Park Slopes & Irrigation Repairs
If an individual, so state. If a firm or co-partnership, state the firm and give the names of all individual co-partners composing the partnership. If a corporation, state legal name of corporation; state also the names of the president, secretary, treasurer, and manager thereof. ______________________________________________________
______________________________________________________
______________________________________________________
Business Address: ______________________________________________________ ______________________________________________________
______________________________________________________
Telephone Number:

Date:

Print Name: ___________________________________________ Principal
Signature: ___________________________________________

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79 L. W9 FORM

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VI. TECHNICAL

SPECIFICATIONS

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South Park Slope and Irrigation Repairs TEMPORARY TREE & PLANT PROTECTION CIP- 603 025639 - 1
SECTION 025639 TEMPORARY TREE & PLANT PROTECTION
PART 1 - GENERAL

1.1 SUMMARY
A. This Section includes materials, labor, apparatus, tools, equipment, temporary construction, transportation, and services necessary for and incidental to performing the proper completion of Work for Temporary Tree & Plant Protection, as shown in the Contract Drawings, and as specified herein this Section.

B. Work under this Section consists of, but is not necessarily limited to, furnishing and installing the following:

1. Protecting and maintaining existing trees and vegetation not specifically designated for removal, to remain.

2. Protection shall be extended to trees and/or vegetation located within or directly adjacent to the Project Site, whether the tree trunk and/or vegetation are located within the designated Limits of Work.

C. Related Sections: The following Sections contain requirements that relate to Work in this Section:

1. Section 328400 Planting Irrigation

2. Section 329200 Lawns and Grasses.

3. Section 329300 Exterior Plants.

4. Section 329400 Landscape Planting Accessories.

1.2 DEFINITIONS AND APPLICABLE STANDARDS
A. References:

1. ANSI American National Standards Institute.

2. ASTM American Society for Testing & Materials.

3. ISA International Society of Arboriculture.

4. USDA United States Department of Agriculture.

B. Definitions:

1. Tree A woody perennial plant which usually has (but not limited to) a single dominant trunk and has a mature height of fifteen- unk diameter
(caliper) of three-inches or more when measured at twenty-four-inches ( ) above the finished grade.

2. Drip-line T
tree leaves or fronds, trunk, branches, roots, and soil. In no case shall a drip line encompass an area under a tree canopy, which is less than ten- ) in diameter.

Since each tree is unique in size, scale, and form, the delineated drip-line of each tree shall be refined at the discretion of the Landscape Architect.

3. Injury Bruising, scarring, tearing, gouging, or breaking of roots, branches, or trunk(s), soil compaction around the drip-line, or contamination around the drip-line which results in the decline to the health of the tree.

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South Park Slope and Irrigation Repairs TEMPORARY TREE & PLANT PROTECTION CIP- 603 025639 - 2

4. Root Zone The soil volume surrounding a plant containing the roots.

C. Reference Standards:

1. American National Standard for Tree Care Operation, Tree, Shrub, and Other Woody Plant Maintenance (ANSI A300), American National Standards Institute, Latest Edition.

2. American National Standard for Tree Care Operations (ANSI Z133), American National Standards Institute, Latest Edition.

3. Tree Pruning Guidelines, International Society of Arboriculture, 1995 Edition.

4. Pruning Standards for Shade Trees, National Arborists Association, Latest Edition.

1.3 SUBMITTALS
A. Contractor shall provide site photographs or videotape, sufficiently detailed and described, of existing conditions of trees and vegetation, adjoining construction, and site improvements that might be misconstrued as damage caused by site clearing, tree pruning, or tree protection.

Submit photographs or videotape to the Landscape Architect prior to commencement of Work.

B. Product Data: Submit complete and legible materials list of items to be provided for Work described herein this Section.

C. Submit complete detailed schedule and description of Work to be done within drip-line, (if any), including list of equipment to be used.

D. Submit schedule and description of proposed pruning and/or other remedial work to existing plant materials. Submit qualifications describing years of experience and list of similar projects completed for the following:

1. A State of California licensed Pest Control Advisor shall propose application of all herbicides or pesticides.

2. A Certified Arborist shall propose pruning of trees or other vegetation. The Certified Arborist s -certification experience performing
pruning and observation work for projects of comparable size with trees of similar size and nature.

3. Tree Pruning Company, and List of Certified Tree Workers, who will perform Work relating to requirements herein this Section. Tree Pruning Company shall have a minimum of five (5) years experience specializing in performing the work of this Section for projects of comparable size with trees of similar size and nature.

1.4 QUALITY ASSURANCE AND CONTROL
A. Pre-Installation Conference: Conduct conference at Project Site.

B. Pruning and remedial work shall be done under the direct supervision of an Arborist certified by the International Society of Arborists (ISA); or Arborist who is a member in good standing in the American Society of Consulting Arborists, in compliance with ISA and ANSI Standards.

Arborist shall be on Site continuously while existing trees or roots are being pruned or remedial work is being performed.

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South Park Slope and Irrigation Repairs TEMPORARY TREE & PLANT PROTECTION CIP- 603 025639 - 3

1.5 PROJECT SITE CONDITIONS
A. Contractor shall become aquatinted with existing site conditions, verifying quantities and locations of all protected trees and vegetation, and other information as may be necessary.

Notify the Landscape Architect of unsatisfactory conditions, in writing, prior to commencement of Work.

B. Tree Flagging: Prior to commencement of Work, Contractor shall flag existing trees and vegetation to remain and protected throughout the duration of Work. Adequately flag tree trunks with bright-colored tape (neon colors preferred). Verify flagged trees and vegetation with the Landscape Architect.

C. Traffic: Minimize interference with adjoining roads, streets, walks, and other adjacent occupied or used facilities during tree-pruning or tree-protection operations.

1. Do not close or obstruct streets, walks, or other adjacent occupied or used facilities without permission from the Owner and authorities having jurisdiction.

2. Provide alternate routes around closed or obstructed traffic ways, if required, by authorities having jurisdiction.

D. Locate all utilities prior to any Work, and perform Work in a manner which will avoid possible damage. Notify utility locator service for area where Project is located before site clearing where applicable. Notify the Landscape Architect if conflicts exist.

E. Improvements on Adjoining Property: Authority for performing indicated removal and alteration Work on property adjoining Owner's property shall be obtained by the adjoining property Owner(s) prior to commencement of Work.

F. Protect existing Work and Work of other trades: Damage to existing construction caused by Work of this Section shall be promptly repaired and/or replaced at the expense of the Contractor.

G. Environmental Requirements: Perform actual pruning operations (if needed) during those seasons suitable for the specific tree type, in accordance with locally acceptable horticultural practices.

H. Pre-Tree Pruning/Tree Protection Conference: Contractor shall conduct a Pre-Tree Pruning/Tree Protection Conference at the Project Site with Certified Arborist (who will be on-site supervising the Work of the Project) and the Landscape Architect.

1. Contractor shall be responsible for notifying parties, in writing, at least seven (7) days in advance to schedule the Conference.

2. Contractor shall provide to parties in attendance within seven (7) days a written legible inventory of Work to be accomplished, including species (botanical and common name), location, size, specific pruning needs or tree protection needs as identified during the Conference, recommended pruning or tree protection methods to meet the identified needs, and any additional conditions noted.

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1.6 SCHEDULE
A. Install Tree Protection Barricades prior to commencement of Work.

B. Work shall be done according to approved Schedule.

1.7 GUARANTEE
A. Contractor shall Guarantee that plants covered under the Provisions of this Section shall be healthy and in a flourishing condition of active growth for two (2) years from the date of Final Acceptance.

B. Requirements of the guarantee shall apply if failure of the Contractor to take specified precautions and Work within restrictions of this Section contributes to the destruction, decline, or injury to a tree to remain, in the judgment of the Landscape Architect.

C. If a tree designated to be protected accordingly is destroyed or injured so that in the judgment of the Landscape Architect it should be replaced, it shall be removed at the expense of the Contractor. Contract shall pay compensation to the Owner of the property where the tree was located at the rate as specified herein this Section (see Compensation).

1.8 COMPENSATION
A. Contractor shall replace existing plant material designated to remain that dies or sustained pruning, or maintenance during the course of construction operations.

B. Trees: Contractor shall thoroughly remove damaged tree, including trunk, branches, and roots, at no cost to the Owner, and at the direction of the Landscape Architect.

1. Contractor shall furnish and install per requirements in Section 329300 Exterior Plants, with an equal size tree (in height, spread, and caliper), and of the same form, species, and in the same quantity as those tree(s) that were damaged, at the direction of the Landscape Architect. Compensation shall include the actual cost of the item boxed out of the ground; transportation or delivery of boxed item to the site; unloading, planting and staking; maintenance, including watering, fertilizing, pruning, pest control, and other care to bring replacement to same general condition of the original item.

C. Other Plant Material (other than Trees): Contractor shall replace other vegetation (other than adequate required vegetation protection, pruning, or maintenance during the course of construction operations. Compensation shall be awarded to the Owner as follows:

1. Contractor shall thoroughly remove damaged vegetation at no cost to the Owner, and at the direction of the Landscape Architect.

2. Contractor shall furnish and install per requirements in Section 329300 Exterior Plants, with equal size plant material as those which damaged ((5) gallon container stock minimum (as applicable)) of the same form, species, and in the same quantity as vegetation that was damaged, at the direction of the Landscape Architect.

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South Park Slope and Irrigation Repairs TEMPORARY TREE & PLANT PROTECTION CIP- 603 025639 - 5
PART 2 - PRODUCTS

2.1 TREE PROTECTION MATERIALS
A. Barricade for Protection of Existing Vegetation:

1. Fabric: Utility (snow) type fencing, minimum four- - gh, consisting of a vinyl meshed fabric in a bright orange color. Fabric shall be approved by the Landscape Architect.

2. Posts: Metal or wood, sufficient in gauge (as appropriate) and size to support the fabric material in a taut and plumb condition. Posts shall be subject to approval by the Landscape Architect.

3. Signs: Posted plastic laminated signs, attached to fabric fencing, with words -KEEP OUTB. Mulch: Where available, Contractor shall stockpile and reuse shredded wood chips produced from on-site tree removals and remedial work, if chips are disease free and acceptable to the Landscape Architect. Where on-site chips are not available, Contractor shall provide Shredded Wood Mulch as specified in Section 329400 Landscape Planting Accessories.

PART 3 - EXECUTION

3.1 PREPARATION
A. Provide erosion-control measures as needed to prevent soil erosion and discharge of soilbearing water runoff or airborne dust to adjacent properties and walkways.

B. Locate and clearly flag trees and vegetation to remain or to be relocated.

C. Protect existing site improvements to remain from damage during construction.

3.2 TREE AND VEGETATION PROTECTION
A. Protect existing trees and other vegetation indicated to remain in place against the following:

1. Storage or parking of automobiles or other vehicles.

2. Stockpiling of building materials, refuse, or excavated materials.

3. Use of trees as support posts, power posts, or sign posts, anchorage for ropes, guy wires, or power lines, or other similar functions.

4. Dumping of poisonous materials on or around plant roots, trunks, branches, or foliage.

Such materials include, but are not limited to, paint, petroleum products, dirty water, or other deleterious materials.

5. Cutting, breaking, or shinning of roots caused by utility trenching, foundation digging, placement of curbs and trenches, and other miscellaneous excavation without prior written approval by the Landscape Architect.

6. Damage by skinning or bruising of bark on trunks or branches, caused by maneuvering vehicles or stacking material or equipment too close to the plant.

7. Compaction of the soil within the drip-line of the plants due to movement of trucks or grading machines, pedestrian or vehicular traffic, storage of equipment or materials.

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8. Excessive water or heat from equipment, utility line construction, or burning of trash under or near vegetation to remain.

9. Damage to root system from flooding, erosion, and excessive wetting and drying resulting from watering and other operations.

B. Prior to commencement of construction activities, the Contractor shall erect and maintain a temporary fenced barricade around the drip-line of individual trees, around perimeter drip-line of groups of trees, or around other vegetation to remain.

1. Prevent damage to roots during installation of barricade posts. Space posts approxi - -center (O.C.) and securely attach fabric.

2. Barricades shall be installed plumb, taut, and sturdy to prevent unauthorized access around drip-line of trees and protected vegetation. Repair sagging or damaged barricades immediately.

3. Immediately after barricade fencing is installed, cover entire soil area inside of the fence area with a four- eighteen-inches ( ) away from
root crown. Irrigate protected trees and vegetation to a moist soil depth of eighteeninches ( ) deep.

4. During the course of construction, relocation of the barricade may be required to facilitate construction. Contractor shall relocate barricade as directed by the Landscape Architect at no additional expense to the Owner.

5. Remove barricade when construction operations are complete or when directed by the Landscape Architect.

C. Irrigation: Contractor shall supply fresh potable water in adequate amounts and rates of application as required to maintain the health of protected plant material throughout the duration of the construction operations. Contractor shall maintain a watering schedule and document dates and duration of irrigation applications.

1. Construct a temporary watering basin, as required, on the surface of the existing undisturbed grade, with imported soil, to aid in the retention of water around existing protected trees and planting.

D. Do not excavate within drip line of trees, unless approved, in writing, by the Landscape Architect.

E. Where excavation for new construction is required within drip line of trees, hand clear and excavate to minimize damage to root systems. Use narrow-tine spading forks, comb soil to expose roots, and cleanly cut roots as close to excavation as possible.

1. Cover exposed roots with burlap and water regularly.

2. Temporarily support and protect roots from damage until they are permanently relocated and covered with soil.

3. Coat cut faces of roots more than 1-1/2 inches in diameter with emulsified asphalt or other approved coating formulated for use on damaged plant tissues.

4. Cover exposed roots with wet burlap to prevent roots from drying out. Backfill with soil as soon as possible.

F. Protect root systems of existing trees and vegetation from damage due to chemically injurious materials in solution caused by run-off or spillage during mixing or placement of construction materials, and drainage of stored materials.

G. Protect root systems from flooding, erosion, excessive wetting or drying resulting from dewatering or other operations.

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H. Repair or replace trees and vegetation indicated to remain that are damaged by construction operations, in a manner approved by the Landscape Architect.

1. Employ a qualified arborist, licensed in jurisdiction where Project is located, to submit details of proposed repairs and to repair damage to trees and shrubs.

2. Replace trees that cannot be repaired and restored to full-growth status, as determined by the qualified Arborist.

3.3 CLEARING AND GRUBBING
A. Remove obstructions, trees, shrubs, grass, and other vegetation to permit installation of new construction. Removal includes digging out stumps and obstructions and grubbing roots.

1. Do not remove trees, shrubs, and other vegetation indicated to remain or to be relocated.

2. Cut minor roots and branches of trees indicated to remain in a clean and careful manner where such roots and branches obstruct installation of new construction.

3. Completely remove stumps, roots, obstructions, and debris extending to a depth of eighteen-inches (18 inches below exposed sub-grade.

4. Use only hand methods for grubbing within drip line of remaining trees.

B. Fill depressions caused by clearing and grubbing operations with satisfactory soil material, unless further excavation or earthwork is indicated.

3.4 PRUNING AND REMEDIAL WORK
A. Pruning and remedial work shall be done under continuous supervision of the approved Arborist, according to approved submittals, and per ANSI A300 Pruning Standards.

B. Provide pruning, cabling and bracing, irrigation, pest and disease control and other remedial treatments as recommended by the approved Arborist, required to assure the long-term health of the trees and existing vegetation, and the safety of persons and property.

3.5 LANDSCAPE ESTABLISHMENT PERIOD
A. Keep areas within tree protection barricades free from weeds, trash, and debris. Do not use herbicides.

B. Maintain mulch layer and protective devices throughout entire duration of Contract.

END OF SECTION

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South Park Slope and Irrigation Repairs CONCRETE UNIT MASONRY CIP - 603 042200 - 1
SECTION 042200 CONCRETE UNIT MASONRY
PART 1 - GENERAL

1.1 SUMMARY
A. This Section includes materials, labor, apparatus, tools, equipment, temporary construction, transportation, and services necessary for and incidental to performing the proper completion of Work as required to make a complete Concrete Unit Masonry installation, as shown on the Contract Drawings, and as specified herein this Section.

B. Work under this Section consists of, but is not necessarily limited to, furnishing and installing the following:

1. Concrete Masonry Units.

2. Mortar and Grout.

3. Reinforcing Steel.

4. Control Joint Materials.

5. Masonry Joint Reinforcement.

6. Ties and Anchors.

7. Embedded Flashing.

8. Miscellaneous Masonry Accessories.

C. Related Sections. The following Sections contain requirements that relate to Work in this Section:

1. Section 321323 Site Concrete (for cast-in-place concrete footings).

D. Products installed, but not furnished under this Section:

1. Section 055000 Metal Fabrication, for steel lintels and shelf angles for unit masonry.

1.2 DEFINITIONS AND APPLICABLE STANDARDS
A. References:

1. ASTM American Society for Testing and Materials.

2. ANSI American National Standards Institute.

3. IBC International Building Code.

4. CBC California Building Code.

B. Material Specification Standards:

1. ASTM C90 Standard Specification for Load-Bearing Concrete Masonry Units.

2. ASTM C270 Standard Specification for Mortar for Unit Masonry.

3. ASTM C476 Standard Specification for Grout for Masonry.

C. Material Testing Standards:

1. ASTM C140 Standard Test Methods for Sampling and Testing Concrete Masonry Units and Related Units.

2. ASTM C780 Standard Test Method for Preconstruction and Construction Evaluation of Mortars for Plain and Reinforced Unit Masonry.

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3. ASTM C1019 Standard Test Method for Sampling and Testing Grout.

D. Applicable Code: California Building Code, latest edition.

1. The Code is hereby made a part of this Section and Masonry Work shall conform to applicable requirements therein except as otherwise specified herein or shown on the Contract Drawings. Nothing contained herein shall be construed as permitting Work that is contrary to Code requirements.

E. Definitions:

1. CMU Concrete Masonry Unit.

2. PCF Pounds per Cubic Foot (measurement).

3. PSI Pounds per Square Inch (measurement).

1.3 SUBMITTALS
A. General:

1. Collect information into a single Submittal for each element of construction and type of product or equipment identified under this Section for review.

2. To expedite review, Submittal shall be organized and presented into specific sections or headings. Furnish neat, concise, legible, and clearly identifiable information, and sufficiently explicit detail, to enable proper evaluation for Contract compliance.

Highlight catalog, product data, or brochures containing various products, sizes, and materials to show particular item submitted.

3. Submittal Format: As applicable, furnish Submittal as a single electronic digital PDF (Portable Document Format) file.

B. Digital Submittal Information:

1. Product/Material Data: Submit available product/material literature, mix designs, test reports, suppl
requirements. Provide manufacturing source (name, address, and telephone number), and distributor source (name, address, and telephone number) for each type of product/material:
a. Concrete Masonry Units.
b. Pre-Blended Mortar (Mix design indicating types and proportions of materials according to proportion specification of ASTM C270).
c. Conventional Grout (Mix design indicating types and proportions of materials according to proportion requirements of ASTM C476).

2. Material Certificates, certifying compliance as specified:
a. Concrete Masonry Units.
b. Steel Reinforcing Bars.
c. Anchors, Ties, Fasteners, and Metal Accessories.
d. Preformed Control Joint Gaskets.

3. Qualification Data: Submit names for fir
similar installations.

4. Scaled Shop Drawings: Provide enlarged scaled plans, elevations, sections, as required, for review by the Landscape Architect and Structural Engineer, indicating dimensioned fabrication and erection of CMU construction, including foundations, structural materials and components, joining materials, imbedments, cap units, or other items attached to or concealed in the Work.

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South Park Slope and Irrigation Repairs CONCRETE UNIT MASONRY CIP - 603 042200 - 3
C. Material Samples:

1. To be reviewed as part of the Field-Constructed Mock-Ups.

D. Submittals under this Article will be rejected and returned without the benefit of review by the Landscape Architect if they are difficult to read due to insufficient scale, poor image quality, or poor drafting quality; or if all of the required information is missing or not presented in the format as requested. Partial Submittals will not be accepted.

E. No Work under this Section shall proceed until all information indicated herein this Article have been reviewed, accepted, and approved by the Landscape Architect, in writing.

1.4 QUALITY ASSURANCE AND CONTROL
A. Compressive Strength of Concrete Unit Masonry: Conform to CBC Code Sections 2105.3.2.1 and 2105.3.2.2. The 28-day minimum compressive strength (f'm,) shall be 1,500 PSI.

1. Method of Testing: Compressive strength of masonry shall be determined based on strength of the Unit and type of Mortar specified (Unit Strength Method) per CBC Table 2105.2.2.1.2.
a. Concrete Masonry Units: Test per ASTM C140.
b. Mortar: Test per ASTM C780.
c. Grout: Test per ASTM C1019.

B. Tests and inspections shall be performed by qualified individuals, engineering companies or testing laboratories who shall perform those tests and inspections specified below and such other tests and inspections as the Engineer or Owner may require to establish the acceptability of the Work. Testing and inspection services shall be retained by the Owner at his expense except that when tests or inspections reveal failure of materials to meet contract requirements, costs for subsequent tests and inspections will be deducted from moneys due to the Contractor.

C. Installer Qualifications: Engage an experienced Installer with experience in successfully demonstrating the installation of Concrete Masonry Work similar in material, design, and extent to that indicated for this Project, with a record of successful performance, and with sufficient production capacity to produce required units without causing delay in the Work.

1. Requirement: Valid California C-29 (Masonry Contractor) License.

D. Permits, Fees, Bonds, and Inspections: Contractor shall arrange and pay for permits, fees, bonds, and inspections necessary to perform and complete Work under this Section.

E. Field-Constructed Mock-ups:

1. Provide a complete fabricated panel for all respective materials receiving finishing which is to be used as the basis for judging quality of workmanship throughout the project, as follows:
a. Wall, complete in place:
1) Provide Brick Masonry, as required, per Contract Drawings.

2. Prior to the installation of Work in this Section, erect Field-Constructed Mock-up to verify selections made under the Submittals Article to demonstrate aesthetic effects as well as qualities of materials and execution. Build Field-Constructed Mock-ups to comply with the following requirements, using materials indicated for final Unit of Work, including same base construction, joints, and contiguous Work as indicated.

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3. Locate Field-Constructed Mock-ups in the location and of the size indicated or, if not indicated, as directed by the Owner.

4. Notify the Landscape Architect at least one (1) week in advance of the dates and times when the Field-Constructed Mock-up will be erected and ready for review.

5. Demonstrate the proposed range of aesthetic effects and workmanship in the FieldConstructed Mock-up that will be produced in final unit of Work.

6. When the Landscape Architect determines that a Field-Constructed Mock-up does not meet requirements, retain it for reference and construct another Field-Constructed Mockup until it is accepted. Modify or correct Work as directed by Landscape Architect.

7. -Constructed Mock-up, in
writing, prior to the start of the final Unit of Work. An accepted Mock-up is a prerequisite to commencing Work under this Section.

8. Retain and maintain Field-Constructed Mock-ups during construction in an undisturbed condition. Accepted Field-Constructed Mock-ups shall be the standard for judging the completed Work under this Section.

9. Demolish and remove the Field-Constructed Mock-ups when directed by the Owner.

10. Accepted Field-Constructed Mock-ups may become part of the completed Work, if directed by the Landscape Architect.

1.5 DELIVERY, STORAGE AND HANDLING.

A. Provide new, unused materials indicated under this Section. Store and secure properly to prevent theft or damage.

B. Do not bring cementitious or other material to the site if it has become lumpy, caked, hardened or air slaked from absorption of moisture.

C. to prevent chipping and breakage. Protect reinforcing steel from kinking and bending and from contamination with dirt, mud, oil and other foreign matter detrimental to bond.

D. Deliver manufactured materials in original, unopened packages or containers with manufacturer's labels intact and legible.

E. Store materials off ground and under cover, away from damp surfaces and inclement weather.

F. Deliver and install materials so as to not delay Work, and install only after preparations for installation have been completed.

1.6 COORDINATION, SCHEDULING, AND OBSERVATIONS
A. Notify the Contractors performing Work related to installation of Work under this Section in ample time so as to allow sufficient time for them to perform their portion of Work and that progress of Work is not delayed. Verify conditions at the Project Site for Work that affects installation under this Section. Coordinate items of other trades to be furnished and set in place.

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finished grades, pilasters, and other construction of Concrete Masonry Work by accurate field measurements before erection. Show recorded measurements on Shop Drawings.

C. Perform installation operations only when weather is suitable in accordance with locally accepted practices:

1. Cover top of unfinished masonry work to protect it from the weather.

2. Implement cold-weather procedures when ambient temperature falls below 40°F or the temperature of masonry units is below 40°F:
a. Wet or frozen Units shall not be laid.
b. Implement cold weather construction procedures in accordance with ACI 530.1.

3. Implement hot-weather procedures when ambient temperature exceeds 100°F, or exceeds 90°F with a wind velocity greater than 8 mph:
a. Implement hot weather construction procedures in accordance with ACI 530.1.

D. Grades and Levels: Maintain required levels and grade elevations. Review installation procedures and coordinate Work herein this Section with other Work affected.

E. Construction Site Observations: Periodic site observations shall be made by the Landscape Architect during the installation of Work under this Section for compliance with requirements for type, size, and quality. Landscape Architect retains right to observe Work for defects and to reject unsatisfactory or defective material at any time during progress of Work. Contractor shall remove rejected materials immediately from Project site. Contractor shall request, in writing, at least one (1) week in advance of the time when mandatory site observation(s) by the Landscape Architect are required.

1.7 SUBSTITUTIONS
A. Consideration: Materials to be considered equal to the Materials indicated herein this Section shall be reviewed by the Landscape Architect. Materials with equal performance characteristics ations
in dimensional size, color, composition, operation, and/or other characteristics do not change the design concept, aesthetic appearance, nor intended performance, as solely judged by the Landscape Architect. The burden of proof on product equality is on the Contractor.

B. ndards
of quality. This implies no right to the Contractor to substitute other materials without prior written approval by the Landscape Architect for Work under this Section.

C. Materials substituted and installed by the Contractor, without prior written approval by the Landscape Architect, may be rejected. Contractor shall not be entitled to be compensated by the Owner where the Contractor has installed rejected substitutions without receiving prior written approval.

D. Contract Price: Substituted Materials under this Section shall not increase the Contract price.

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PART 2 - PRODUCTS

2.1 CONCRETE MASONRY UNITS
A. Concrete Masonry Units: Meet ASTM C90, two-cell, double-open end and bond beam units where indicated or required, made with medium-weight expanded-clay or shale aggregates.

1. Size: As Required. Refer to Contract Drawings.

2. Color: As Required. Refer to Contract Drawings. Color to match existing CMU block on site.

3. Type:
a. Split Face.

2.2 MORTAR MATERIALS AND MORTAR MIXES
A. Mortar Materials:

1. Portland Cement: Meet ASTM C150 (CBC Standard 26-1), Type V.

2. Sand: Meet ASTM C144. For joints less than 1/4-inch, use aggregate graded with onehundred percent (100%) passing a No. 16 sieve.

3. Water: Per ASTM C94, from potable domestic source, and free from deleterious materials or impurities such as oils, acids, and organic matter which may be detrimental to mortar.

4. Bonding Agent: Meet ASTM C1059, Type II, non-redispersible, acrylic emulsion or styrene butadiene.

5. Admixtures:
a. Cold-Weather Admixture: Non-chloride, non-corrosive, accelerating admixture complying with ASTM C494, Type C, and recommended by manufacturer for use in masonry mortar of composition indicated.
1) Products & Manufacturers: Subject to compliance with requirements, provide products by the following:
a) Accelguard 80, Euclid Chemical Co.
b) Morset, Grace, W.R. Grace & Co., Construction Products Division. c) Or equal, as approved by the Landscape Architect.
b. Latex Additive (water emulsion) described below, serving as replacement for part of or all gaging water, of type specifically recommended by latex additive manufacturer for use with job-mixed Portland cement and aggregate and not containing a retarder.
1) Latex Additive: Styrene butadiene rubber.
2) Latex Additive: Acrylic resin.

6. Color Pigments: Where required, when integrally colored mortar and grout is used, use natural or synthetic iron oxides and chromium oxides, compounded for use in mortar mixes. not to exceed five-percent (5%) of the weight of masonry cement or ten-percent (10%) of the weight of Portland cement in the Mortar. Use only pigments with record of satisfactory performance in mortar.
a. Color: Color to match Unit Masonry. nge
for selection by Landscape Architect.
b. Products & Manufacturers: Subject to compliance with requirements, provide products by the following:
1) True Tone Mortar Colors, Davis Colors.
2) Centurion Pigments, Lafarge Corporation.

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3) SGS Mortar Colors, Solomon Grind-Chem Services, Inc. 4) Or equal, as approved by the Landscape Architect.

7. Blending: Mortar Materials shall be thoroughly blended as follows, with a total mixing time not less than ten (10) minutes:
a. Place approximately half of required water and sand into mixer while running. b. Add cement and remainder of sand and water into mixer in that order and mix for a period of at least two (2) minutes.
c. Add lime and continue mixing as long as needed to secure a uniform mass. d. Colored Pigmented Mortar: Select and proportion pigments with other ingredients to produce color required. Do not exceed pigment-to-cement ratio of 1-to-10, by weight.

B. Mortar Mix (pre-blended, pre-packaged factory mix):

1. General: Meet ASTM C270 and comply with CBC Standards 21-15, for Type S Mortar. a. Comply with referenced standards and with manufacturers' written instructions for mix proportions, mixing equipment, mixer speeds, mixing containers, mixing time, and other procedures needed to produce Mortar of uniform quality and with optimum performance characteristics.

2. Do not use admixtures, including pigments, air-entraining agents, accelerators, retarders, water-repellent agents, antifreeze compounds, or other admixtures, unless otherwise indicated. Do not use calcium chloride.

3. Color: Color to ma
selection by Landscape Architect.

4. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Mac High Absorbent Brick Mortar Polymer Modified (H.A.B. Poly) Type S, Orco Blended Products, Inc.
b. Spec Mix® Pre-Blended Dry Mortar Type S, Premix Products of Southern California.
c. Or equal, as approved by the Landscape Architect.

C. Water: Per ASTM C 94, from potable domestic source, and free from deleterious materials or impurities such as oils, acids, and organic matter which may be detrimental to mortar or grout.

2.3 GROUT MATERIALS AND GROUT MIXES
A. Grout Materials:

1. General: Materials for Grout shall be measured in suitable calibrated devices. After the addition of water, all materials shall be mixed for at least three (3) minutes in a drum type batch mixer. Mixing equipment and procedures shall produce Grout with the uniformity required for concrete by ASTM C94.

2. Portland Cement: Meet ASTM C150 (CBC Standard 26-1), Type V.

3. Aggregate: Meet ASTM C404.

4. selection by Landscape Architect.

5. Water: Per ASTM C94, from potable domestic source, and free from deleterious materials or impurities such as oils, acids, and organic matter which may be detrimental to grout.

6. Admixtures: When required, use only non-chloride based accelerators. Do not use antifreeze substances.

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B. Grout Mix (pre-packaged, pre-blended factory mix):

1. General: Meet ASTM C476 and comply with CBC, Section 2103.4.

2. Optimum resistance to abrasion, compression and flexural strength, even after freeze/thaw cycles, good resistance to acids with pH>3, and free from cements that do not generate calcium hydroxide crystals which cause efflorescence during the hydration process.

3. Minimum Compressive Strength: 2,000 PSI.

4. Proportions: As specified in CBC, Table 21-B.

5. selection by Landscape Architect.

2.4 REINFORCEMENT AND METAL ACCESSORIES
A. Metal Reinforcement and Accessories: Conform to ACI 530.1.

B. Steel Reinforcing Bars: Meet ASTM A615.

C. Masonry Joint Reinforcement: Meet ASTM A951. Maximum spacing of cross wires in laddertype and points of connection of cross wires of truss-type joint reinforcement shall be 16 in.

D. Anchors, Ties, and Accessories:

1. Plate and Bent-Bar Anchors: Meet ASTM A36.

2. Sheet-Metal Anchors and Ties: Meet ASTM A1008,

3. Wire Mesh Ties: Meet ASTM A185.

4. Wire Ties and Anchors: Meet ASTM A82.

5. Headed Anchor Bolts: Meet ASTM A307, Grade A.

E. Coatings for Corrosion Protection: Unless otherwise required, protect carbon steel joint reinforcement, ties, and anchors from corrosion by galvanizing or epoxy coating in conformance with the following minimums:

1. Mill Galvanized Coatings:
a. Joint Reinforcement: Meet ASTM A641 (0.1 oz/ft2).
b. Sheet Metal Anchors and Ties: Meet ASTM A653 Coating Designation G60.

2. Hot-Dipped Galvanized Coatings:
a. Joint Reinforcement, Wire Ties, and Wire Anchors: Meet ASTM A153 (1.50 oz/ft2).
b. Sheet Metal Anchors and Ties: Meet ASTM A153 Class B.

3. Epoxy Coatings:
a. Joint Reinforcement: Meet
b. Wire Ties and Anchors: Meet ASTM A899 Class C, 20 mils. c. Sheet Metal Anchors and Ties: 20 mils, per manufacturer's specification.

2.5 FLASHING MATERIALS
A. Provide metal flashing in accordance with Section 076200 - Sheet Metal Flashing and Trim.

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2.6 MISCELLANEOUS MASONRY ACCESSORIES
A. Rubber Preformed Control-Joint Gaskets: Per ASTM D2000, Designation M2AA-805.

B. PVC Preformed Control-Joint Gaskets: Per ASTM D2287, Type PVC 654-4.

C. Fiber Joint Filler: Asphalt saturated fiber type conforming to ASTM D1751 for 1/2" thick, unless otherwise noted.

2.7 MASONRY CLEANER
A. Use potable water and detergents to clean Masonry unless otherwise approved.

B. Do not use acid or caustic solutions unless otherwise approved.

2.8 MIXING
A. Mortar: Thoroughly blend Pre-packaged Masonry Mortar Mix per manufacturer's recommendations.

B. Grout: Thoroughly blend Pre-packaged Masonry Grout Mix to a consistency that has a slump between 8 and 11 in., per manufacturer's recommendations.

2.9 FABRICATION
A. Fabricate Reinforcement per ACI 530.1.

PART 3 - EXECUTION

3.1 EXAMINATION
A. Prior to the start of Masonry installation, verify all conditions pertinent to the performance of work in this Section are acceptable.

1. Verify foundations are constructed within a level alignment tolerance of ± 1/2 in.

2. Verify that reinforcing dowels are positioned in accordance with Project Drawings.

B. Masonry work shall not proceed until unsatisfactory conditions have been corrected or approved by the Landscape Architect.

3.2 PREPARATION
A. Clean reinforcement and shanks of anchor bolts by removing mud, oil, or other materials that will adversely affect bond to mortar or grout.

1. Reinforcement with rust and/or mill scale is acceptable provided attributes of a cleaned sample are in accordance with the applicable ASTM specification.

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B. Prior to laying masonry, remove laitance, loose aggregate, and any other material that would prevent mortar from bonding to the foundation.

C. Do not wet units before laying, unless otherwise required. Wet cutting is permitted.

D. Cut units as required to fit; use motor-driven masonry saw. Install cut units with cut surfaces concealed as much as possible.

3.3 INSTALLATION
A. Select and arrange units for exposed masonry to produce a uniform blend of colors and textures.

1. Mix units from several pallets or cubes as they are placed.

B. Comply with construction tolerances in ACI 530.1.

C. Construct grout spaces free of mortar dropping, debris, and any material deleterious to grouting.

D. Construct cleanouts in the bottom course of Masonry for each grout pour when the grout pour height exceeds 5 ft. 4in.

1. Hollow-Unit Masonry: Create cleanout by cutting off entire face shell of the CMU.

Replace face shell after inspection and before grouting.

2. Solid-unit Masonry: Create cleanout by leaving out every other Unit. Install Unit after inspection and before grouting.

3. Brace cleanout closure to resist grout pressure.

4. For partially grouted masonry, construct cleanouts at bottom of each cell to be grouted.

5. For solid-grouted masonry, space cleanouts horizontally a maximum 32 in. on-center.

E. All masonry shall be laid true, level, plumb, and in accordance with the Contract Drawings.

F. Ensure all vertical cells to be grouted are aligned and unobstructed openings for grout are provided in accordance with the Contract Drawings.

G. Exposed masonry shall be laid in running bond unless otherwise indicated in the Contract Drawings.

H. Concealed masonry with shall be laid in running bond unless otherwise indicated.

I. Brace masonry during construction to assure stability. Design, provide, and install bracing.

3.4 MORTAR BEDDING AND JOINTING
A. Place mortar in accordance with ACI 530.1.

B. Initial bed joint shall not be less than 1/4 inch nor more than 3/4 inch.

C. All head and bed joints, except as in 3.4 B., shall be a nominal 3/8 in. thick, unless otherwise required.

D. Lay hollow units with head and bed joints filled with mortar for the thickness of the face shell.

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E. Lay solid units with full head and bed joints. Do not fill head joints by slushing with mortar.

Bed joints shall not be furrowed deep enough to produce voids.

F. Remove mortar protrusions extending 1/2 in. or more into cells to be grouted.

G. Fully mortar webs in all courses of piers, columns and pilasters, in the starting course on foundations, and when necessary to confine grout.

H. All mortar joints on exposed walls shall be concave, unless otherwise indicated, and struck to produce a dense, slightly concave surface well bonded to the surface of the masonry unit.

I. Remove and re-lay in fresh mortar any unit that has been disturbed to the extent the initial bond is broken.

3.5 EMBEDDED ITEMS AND ACCESSORIES
A. Construct control joints as detailed in the drawings as masonry progresses.

1. Install preformed control-joint gaskets designed to fit standard sash block.

B. Construct chases as masonry units are laid.

C. Install pipes and conduits passing horizontally through nonbearing masonry partitions as indicated.

D. Place pipes and conduits passing horizontally through piers, pilasters, or columns as indicated.

E. Place horizontal pipes and conduits in and parallel to plane of walls.

F. Install and secure connectors, flashing, weep holes, weep vents, nailing blocks, and other accessories as required.

3.6 INSTALLATION OF REINFORCING STEEL, WALL TIES, AND ANCHORS A. Install reinforcing steel, wall ties, and anchors in accordance with ACI 530.1.

B. Place Reinforcement as detailed on the Contract Drawings.

1. Support and fasten reinforcement to prevent displacement beyond specified tolerances during construction and grouting operations.

2. Maintain clear distances between reinforcement and any interior face of masonry unit or formed surface, but not less than 1/4 in. for fine grout, or 1/2 in. for coarse grout.

3. Completely embed reinforcing bars in grout.

4. Place reinforcing bars maintaining minimum cover of:
a. Where masonry is exposed to weather, 2 in. for bars larger than No. 5, 11/2 in. for No. 5 or smaller.
b. Where masonry is not exposed to weather, 11/2 in.

5. Embed joint reinforcement with minimum 5/8 inch cover to faces exposed to weather or earth, and 1/2 inch elsewhere.
a. Provide minimum 6-in. lap splices and ensure that all ends of longitudinal wires are embedded in mortar at laps.

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6. Tolerances for placement of reinforcing bars in walls and flexural elements shall be ± 1/2 in. when the distance from the centerline of reinforcing bars to the opposite face of masonry, d, is equal to 8 in. or less, ± 1 in. for d equal to 24 in. or less but greater than 8 in., and ± 11/4 in. for d greater than 24 in.

7. Foundation dowels that interfere with unit webs are permitted to be bent to a maximum of 1 in. horizontally for every 6 in. of vertical height.

C. Install wall ties as detailed on the Contract Drawings, and in accordance with ACI 530.1.

D. Install anchor bolts ties as detailed on the Contract Drawings, and in accordance with ACI 530.1.

1. Embed headed and bent-bar anchor bolts in grout. Anchor bolts of 1/4 in. or less may be placed in mortar bed joints at least 1/2 in. in specified thickness.

2. Maintain clear distance between anchor bolts and any face of masonry unit or formed surface of at least 1/4 in. when using fine grout, and of at least 1/2 in. when using coarse grout.

3. Maintain a clear distance between parallel anchor bolts not less the diameter of the anchor bolt, nor less than 1 in.

3.7 GROUTING
A. Solid fill all cell voids with Grout.

B. Grout spaces shall not be wet at the time Grout is placed.

C. Spaces to be filled with Grout shall be free from debris, mortar, etc., before filling.

D. Grout shall not be placed by high lift process until mortar in joints has set for 24 hours.

E. High-lift G - At cessation of each lift,
the Grout in this lift shall be vibrated with a 3/4" flexible cable vibrator for the full height of the lift. Vibrator shall be placed in cells not to exceed 16" centers (in plan). When top of wall is reached, alternately "top" and vibrate to complete the pour to top of wall. Succeeding lifts of Grout shall be placed following an appropriate lapse of time for grout settlement and absorption of excess moisture.

F. Place high-lift grout using adequate grout pumps.

G. For such time as may be required immediately following grouting, keep walls flushed down with a pressure stream of clear water to completely remove laitance from exposed faces.

3.8 POINTING, AND CLEANING
A. Point and tool holes in mortar joints to produce a uniform, tight joint.

B. During construction, minimize any mortar or grout stains on the wall. Immediately remove any staining or soiling that occurs.

1. For precision or textured units, except as noted below, clean masonry by dry brushing before tooling joints.

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2. For burnished, glazed, or pre-finished concrete masonry units, immediately remove any green mortar smears or soiling with a damp sponge.

C. Final Cleaning: After mortar is thoroughly set and cured, clean exposed masonry surfaces of stains, efflorescence, mortar or grout droppings, and debris.

1. Use appropriate masonry cleaner as tested on the sample panel and as approved by the Landscape Architect, strictly following manufacturer's recommendations.

2. Do not use acids.

D. At completion of Work, remove all scaffolding and equipment used during construction, and remove all debris, refuse, and surplus masonry material from the site.

1. Comply with Construction Waste Management plan.

END OF SECTION

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South Park Slope and Irrigation Repairs METAL FABRICATION CIP - 603 055000 - 1
SECTION 055000 METAL FABRICATIONS
PART 1 - GENERAL

1.1 SUMMARY
A. This Section includes materials, labor, apparatus, tools, equipment, temporary construction, transportation, and services necessary for and incidental to performing the proper completion of Work as required to make a complete Metal Fabrication installation, made from ferrous/nonferrous metals from plates, bars, strips, tubes, pipes and castings not a part of structural steel or specified in other Sections, as shown on the Contract Drawings, and as specified herein this Section.

B. Work under this Section consists of, but is not necessarily limited to, products installed but not furnished under this Section, as follows:

1. Miscellaneous angles, plates, bars, rods and other items not specified in other Sections but shown or required to complete the Work.

C. Related Sections. The following Sections contain requirements that relate to Work in this Section:

1. Section 042200 Concrete Unit Masonry.

2. Section 321323 Site Concrete.

1.2 DEFINITIONS AND APPLICABLE STANDARDS
A. References:

1. ASTM American Society for Testing and Materials.

2. ANSI American National Standards Institute.

3. UBC Uniform Building Code.

4. CBC California Building Code.

5. AWS American Welding Society.

6. CDA Copper Development Association, Inc. (Bronze).

7. SSPC The Society for Protective Coatings.

8. NAAMM National Association of Architectural Metal Manufacturers.

9. AA The Aluminum Association.

B. Applicable Code: California Building Code, latest edition.

C. Applicable Standards:

1. Unless noted otherwise latest edition, issue or revision applies.

2. PS (Product Standards) as referred herein by specification number.

1.3 SUBMITTALS
A. General:

1. Collect information into a single Submittal for each element of construction and type of product or equipment identified under this Section for review.

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Highlight catalog, product data, or brochures containing various products, sizes, and materials to show particular item submitted.

3. Submittal Format: As applicable, furnish Submittal as a single electronic digital PDF (Portable Document Format) file.

B. Digital Submittal Information:

2. Scaled Shop Drawings: Provide enlarged scaled plans, elevations, sections, details, as required, for review by the Landscape Architect and Structural Engineer, indicating dimensioned fabrication and erection of each type of fabricated metal components and their connections. Show construction including anchorage and accessory items. Furnish templates for anchors and bolts installed under other Sections.

3. similar Fabricated Metal installations:
a. Fabricator Qualifications.
b. Welding Qualifications.

C. Material Samples: Material Samples for review of kind, color, pattern, size, and texture for a check of these characteristics with other elements, and for a comparison of these characteristics between Submittal and actual component as delivered and installed. Include the full range of exposed color and texture expected in the completed Work.

1. To be reviewed as part of Field Constructed Mock-ups.

E. No Work under this Section shall proceed until all information indicated herein this Article have been reviewed, accepted, and approved by the Landscape Architect, in writing.

1.4 QUALITY ASSURANCE AND CONTROL
A. Fabricator Qualifications: Engage an experienced Installer with experience in successfully demonstrating the fabrication, installation, and completion of Metal Fabrication Work similar in material, design, and extent to that indicated for this Project, with a record of successful performance, and with sufficient production capacity to produce required units without causing delay in the Work.

B. Welding Qualifications: Qualify welding processes and welding operators in accordance with AWS D1.1, D1.2, and D1.3, as applicable. Certify that each welder has satisfactorily passed AWS qualification tests for welding processes involved.

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C. Permits, Fees, Bonds, and Inspections: Contractor shall arrange and pay for permits, fees, bonds, and inspections necessary to perform and complete Work under this Section.

1.5 DELIVERY, STORAGE AND HANDLING
A. Provide new, unused materials indicated under this Section. Store and secure properly to prevent theft and damage.

B. Deliver manufactured materials in original, unopened packages or containers with manufacturer's labels intact and legible.

C. Store materials off ground and under cover, away from damp surfaces and inclement weather.

D. Deliver and install materials so as to not delay Work, and install only after preparations for installation have been completed.

B. Field Measurements: Contractor shall take field measurements as required. Report major discrepancies between the Contract Drawings and field dimensions to the Landscape Architect prior to commencing Work. Check actual locations of walls, pavement finished surface grades, finished grades, pilasters, and other construction to which Metal Fabrications must fit, by accurate field measurements before fabrication. Show recorded measurements on Shop Drawings.

C. Perform installation operations only when weather is suitable in accordance with locally accepted practices.

D. Grades and Levels: Maintain required levels and grade elevations. Review installation procedures and coordinate Work herein this Section with other Work affected.

E. Construction Site Observations: Periodic site observations shall be made by the Landscape Architect during the installation of Work under this Section for compliance with requirements for type, size, and quality. Landscape Architect retains right to observe Work for defects and to reject unsatisfactory or defective material at any time during progress of Work. Contractor shall remove rejected materials immediately from Project site. The Contractor shall request, in writing, at least one (1) week in advance of the time when mandatory site observation(s) by the Landscape Architect are required.

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in dimensional size, color, composition, operation, and/or other characteristics do not change the design concept, aesthetic appearance, nor intended performance, as solely judged by the Landscape Architect. The burden of proof on product equality is on the Contractor.

B. ndards
of quality. This implies no right to the Contractor to substitute other materials without prior written approval by the Landscape Architect for Work under this Section.

D. Contract Price: Substituted Materials under this Section shall not increase the Contract price.

PART 2 - PRODUCTS

2.1 FERROUS METALS
A. General: For fabrication of metal work which will be exposed to view, use only materials which are smooth and free of surface blemishes including pitting, seam marks, roller marks, rolled trade names and roughness.

B. Steel Plates, Shapes and Bars: ASTM A36.

C. Steel Tubing: Cold-formed, ASTM A500; or hot-rolled, ASTM A501.

D. Structural Steel Sheet: Hot-rolled, ASTM A570; or cold-rolled ASTM A611, Class 1.

E. Galvanized Structural Steel Sheet: ASTM A446, galvanized in accordance with ASTM A525, G90 coating designation.

F. Steel Pipe: ASTM A53; type and grade selected by fabricator; hot-dip galvanized finish; standard weight, schedule 40, unless otherwise indicated.

G. Gray Iron Castings: ASTM A48, Class 30.

H. Malleable Iron Castings: ASTM A47, grade selected by fabricator.

I. Cor-Ten® Steel (High Strength Low Alloy Weathering Steel): Meet ASTM A606, Type 4, Minimum Yield Strength of 50ksi.

2.2 NON-FERROUS METALS
A. Aluminum and Aluminum Alloy:

1. Sheet and Plate: ASTM B208.

2. Drawn Tubes: ASTM B210.

3. Rolled or Cold-finished Bars and Rods: ASTM B211.

4. Extruded Bars, Rods, Wires, Profiles, and Tubes: ASTM B221.

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5. Seamless Pipe and Tubes: ASTM B241.

6. Structural Pipe and Tubes: ASTM B429.

B. Extruded Aluminum Alloy: 6063-T6, mill finish.

C. Bronze: Grade or type designated below for each form required:

1. Extruded Shapes: ASTM B455, alloy UNS No. C38500 architectural bronze.

2. Seamless Pipe: ASTM B43, alloy UNS No. C23000 red brass, 85% copper.

3. Castings: Composition bronze castings complying with ASTM B 62, alloy UNS No.

C83600 85-5-5-5 or No. 1 composition commercial red brass.

4. Plate, Sheet, Strip, and Bars: ASTM B36/B 36M, alloy UNS No. C28000 muntz metal, 60% copper.

2.3 GROUT
A. Non-Shrink, Non-Metallic Grout:

1. Products & Manufacturers: Subject to compliance with requirements, provide products by the following:
a. Euco N-S Grout, Euclid Chemical Co.
b. Crystex, L&M Construction Chemicals, Inc.
c. Masterflow 928 and 713, Master Builders Technologies, Inc. d. Or equal, as approved by the Landscape Architect.

2.4 FABRICATION, GENERAL
A. Workmanship:

1. Use materials of size and thickness indicated or required to produce strength and durability in finished product for use intended.

2. Work to dimensions indicated.

3. Form exposed work true to line and level with accurate angles and surfaces and straight, sharp edges.

4. Ease exposed edges to a radius of approximately 1/32-inch, unless otherwise indicated.

5. Form bent-metal corners to smallest radius possible without causing grain separation or otherwise impairing work.

6. Weld corners and seams continuously, complying with AWS recommendations. At exposed connections, grind exposed welds smooth and flush to match and blend with adjoining surfaces. Welds shall be imperceptible in the finished work.

7. Form exposed connections with hairline joints, flush and smooth, using concealed fasteners wherever possible. Use Phillips flat- head countersunk screws or bolts for exposed fasteners, unless tamperproof security screws are indicated.

8. Cut, reinforce, drill and tap miscellaneous metal work as indicated to receive finish hardware and similar items.

B. Galvanizing: Provide zinc coating for items indicated or specified to be galvanized, as follows:

1. ASTM A153 for galvanizing iron and steel hardware.

2. ASTM A123 for galvanizing both fabricated and un-fabricated iron and steel products made of uncoated rolled, pressed, and forged shapes, plates, bars, and strip 0.0299-inch thick and heavier.

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South Park Slope and Irrigation Repairs METAL FABRICATION CIP - 603 055000 - 6
C. Fabricate joints exposed to the weather to exclude water or provide weep holes.

D. Shop Painting:

1. Shop paint miscellaneous metal work, except members or portions of members to be embedded in concrete or masonry, surfaces and edges to be field welded, and galvanized surfaces.

2. Remove scale, rust and other deleterious materials before applying shop coat. Clean off heavy rust and loose mill scale in accordance with SSPC SP-2, SP-3, or SP-7.

3. Remove oil, grease and similar contaminants in accordance with SSPC SP-1.

4. Brush or spray on primer in accordance with manufacturer's instructions, at a rate of

2.0-mils thickness for each coat.

5. Apply one (1) shop coat to fabricated metal items, except apply two (2) coats to inaccessible surfaces after assembly or erection. Change color of second coat to distinguish from the first.

6. Primer on exposed to view items to be field painted shall be smooth and suitable for application of final finish coats specified in Section 099113 Exterior Painting and Staining.

7. Apply a heavy coat of bituminous paint, compounded for application in 30-mil coat, to metal surfaces in contact with concrete, masonry and dissimilar metals. Do not apply on exposed surfaces.

2.5 MISCELLANEOUS METAL FABRICATIONS
A. Loose Bearing and Leveling Plates: Provide for steel items bearing on masonry or concrete construction, made flat, free from warps or twists, and of required thickness and bearing area.

Drill to receive anchor bolts and for grouting as required. Galvanize after fabrication.

PART 3 - EXECUTION

3.1 PREPARATION
A. Coordinate and furnish anchors, setting drawings, diagrams, templates, instructions, and directions for installation of anchors, such as concrete inserts, sleeves, anchor bolts and miscellaneous items having integral anchors.

3.2 INSTALLATION
A. General:

1. Fastening to In-Place Construction: Provide threaded fasteners for concrete and masonry inserts, toggle bolts, through-bolts, lag bolts, wood screws and other connectors, as required.

2. Cutting, Fitting and Placement:
a. Perform cutting, drilling and fitting required for installation of miscellaneous metal fabrications.
b. Set work accurately in location, alignment and elevation, plumb, level, true and free of rack, measured from established lines and levels.

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South Park Slope and Irrigation Repairs METAL FABRICATION CIP - 603 055000 - 7
c. Provide temporary bracing or anchors in formwork for items to be built into concrete, masonry or similar construction.

3. Fit exposed connections together forming tight hairline joints. a. Weld connections not shop welded.
b. Grind exposed joints smooth and imperceptible, and touch-up shop paint coat. c. Do not weld, cut or abrade the surfaces of exterior units which have been hot-dip galvanized after fabrication, and intended for bolted or screwed field connections.

4. Field Welding: Comply with AWS for procedures of manual shielded metal-arc welding, appearance and quality of welds, and methods used in correcting welding work.

B. Setting Loose Plates:

1. Clean concrete and masonry bearing surfaces of bond-reducing materials, and roughen to improve surface bond. Clean bottom surface of bearing plates.

2. Set loose leveling and bearing plates on wedges, or other adjustable devices.

3. Tighten anchor bolts after the bearing members have been positioned and plumbed.

4. Cut-off protruding ends of wedges flush with the edge of the bearing plate before packing with grout.

5. Use metallic non-shrink grout in concealed locations where not exposed to moisture; use non-metallic non-shrink grout in exposed locations.

6. Pack grout solidly between bearing surfaces and plates to ensure no voids remain.

3.3 ADJUST AND CLEAN
A. Touch-Up Painting: Clean field welds, bolted connections, and abraded areas of shop paint, and paint exposed areas with same material used for shop painting. Apply by brush or spray to provide a minimum dry film thickness of 2.0-mils.

B. Hot-Dip Galvanized Surfaces: Clean field welds, bolted connections and abraded areas and spot prime with specified primer applied to a minimum dry film thickness of 2.5-mils.

END OF SECTION

Page 1005 of 1852 ends

South Park Slope and Irrigation Repairs SITE & STREET FURNISHINGS CIP - 603 129300 - 1
SECTION 129300 SITE AND STREET FURNISHINGS
PART 1 - GENERAL

1.1 SUMMARY
A. This Section includes materials, labor, apparatus, tools, equipment, temporary construction, transportation, and services necessary for and incidental to performing the proper completion of Work for Site and Street Furnishings, as shown on the Contract Drawings, and as specified herein this Section.

B. Work under this Section consists of, but is not necessarily limited to, furnishing and installing the following:

1. Salvaged Bench (Unit)

2. Table (Unit)

1.2 SUBMITTALS
A. General:

1. Collect information into a single Submittal for each element of construction and type of product or equipment identified under this Section for review.

Highlight catalog, product data, or brochures containing various products, sizes, and materials to show particular item submitted.

3. Submittal Format: As applicable, furnish Submittal as a single electronic digital PDF (Portable Document Format) file.

B. Digital Submittal Information:

1. Product/Material Data: Submit available product/material literature, test reports, color requirements. Provide manufacturing source (name, address, and telephone number), and distributor source (name, address, and telephone number) for each product/material type in this Section.

2. Shop Drawings to show component parts, fabrication, installation, and dimensions for items indicated herein this Section.

C. Material Samples:

1. Submit printed , including color charts or color chips of actual fabricated products, for material sample review.

2. Samples of complete Units or parts of Units of the items indicated herein this Section shall be furnished, as requested by Landscape Architect, for review and approval.

3. Sub
requirements noted herein.

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South Park Slope and Irrigation Repairs SITE & STREET FURNISHINGS CIP - 603 129300 - 2
D. Submittals under this Article will be rejected and returned without the benefit of review by the Landscape Architect if they are difficult to read due to insufficient scale, poor image quality, or poor drafting quality; or if all of the required information is missing or not presented in the format as requested. Partial Submittals will not be accepted.

E. No Work under this Section shall proceed until all information indicated herein this Article have been reviewed, accepted, and approved by the Landscape Architect, in writing.

1.3 QUALITY ASSURANCE AND CONTROL
A. All materials and Work shall be in accordance with the State Codes and Specifications and other criteria herein specified.

B. Single-Source Responsibility: Obtain furnishing Units from each respective single source with resources to provide products and materials of consistent quality in appearance and physical properties without delaying the Work.

1.4 COORDINATION, SCHEDULING, AND OBSERVATIONS
A. Notify the Contractors performing Work related to installation of Work under this Section in ample time so as to allow sufficient time for them to perform their portion of Work and that progress of Work is not delayed. Verify conditions at the Project Site for Work that affects installation under this Section. Coordinate items of other trades to be furnished and set in place.

B. Field Measurements: Contractor shall take field measurements as required. Report major discrepancies between the Contract Drawings and field dimensions to the Landscape Architect prior to commencing Work. Check adjoining finished surfaces, finished grades, and other Work by accurate field measurements before erection. Maintain required levels and grade elevations.

Review installation procedures and coordinate Work herein this Section with other Work affected.

C. Perform installation operations only when weather is suitable in accordance with locally accepted practices:

D. Coordinating furnishing footings with utility locations. Note potential conflicts to the Landscape Architect.

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South Park Slope and Irrigation Repairs SITE & STREET FURNISHINGS CIP - 603 129300 - 3

1.5 DELIVERY, STORAGE AND HANDLING
A. Furnishings shall be stored as necessary to prevent damage and shall be in new condition when hings.

B. Store materials off ground and under cover, away from damp surfaces and inclement weather.

C. Deliver manufactured materials in original, unopened packages or containers with manufacturer's labels intact and legible. Deliver and install materials so as to not delay Work, and install only after preparations for installation have been completed.

1.6 SUBSTITUTIONS
A. Consideration: Materials to be considered equal to the Materials indicated herein this Section shall be reviewed by the Landscape Architect. Materials with equal performance characteristics be considered, providing deviations
in dimensional size, color, composition, operation, and/or other characteristics do not change the design concept, aesthetic appearance, nor intended performance, as solely judged by the Landscape Architect. The burden of proof on product equality is on the Contractor.

B. ndards
of quality. This implies no right to the Contractor to substitute other materials without prior written approval by the Landscape Architect for Work under this Section.

D. Contract Price: Substituted Materials under this Section shall not increase the Contract price.

PART 2 - PRODUCTS

2.1 SALVAGED BENCH (Unit)
A. Bench shall consist of the complete assembly, including bench seat and all applicable mounting hardware.

1. Product: To be salvaged from site.

B. Install in quantity as indicated on the Contract Drawings.

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South Park Slope and Irrigation Repairs SITE & STREET FURNISHINGS CIP - 603 129300 - 4

2.2 TABLE (Unit)
A. Table shall consist of the complete assembly, including bench seat and all applicable mounting hardware.

1. Product: To be furnished to Contractor by City.

B. Install in quantity as indicated on the Contract Drawings.

2.3 MISCELLANEOUS MATERIALS
A. Anchors, Fasteners, Fittings, and Hardware: Stainless steel, commercial quality, tamper-proof, vandal & theft resistant, concealed, recessed, and capped or plugged. Provide from manufacturer of site furnishing, as applicable.

B. Non-shrink, Non-metallic Setting Grout: Pre-mixed, factory-packaged, non-staining, noncorrosive, non-gaseous Setting Grout, suitable for exterior applications, complying with ASTM C1107.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Euco N-S Grout, Euclid Chemical Co.
b. Crystex, L&M Construction Chemicals, Inc.
c. Masterflow 713, BASF Building Systems, Inc.
d. Conspec Enduro 50, CONSPEC Marketing and Manufacturing Co. e. Rapidset Grout, Rapidset Products.
f. SikaGrout 212, Sika Corporation.
g. Quikcrete Commercial Grade Fast Set Non-Shrink Grout, Quikcrete Companies. h. 588 Grout, W.R. Meadows.
i. Certi-Grout #1000, Vexcon Chemicals.
j. Or equal, as approved by the Landscape Architect.

C. Erosion-resistant Anchoring Cement: Factory-packaged, non-shrink, non-staining, hydrauliccontrolled expansion cement formulation for mixing with potable water at Project site to create pour-able anchoring, patching, and grouting compound, resistant to erosion from water exposure without needing protection by a sealer or waterproof coating, recommended in writing by manufacturer of site furnishings, for exterior applications.

PART 3 - EXECUTION

3.1 EXAMINATION
A. General: Examine areas and conditions under which site furnishing units are to be installed with Installer present, for compliance with requirements for correct and level finished grade, mounting surfaces, installation tolerances, and other conditions affecting performance.

1. Remedy any conditions detrimental to the proper and timely completion of the Work.

2. Do not proceed with the Work until unsatisfactory conditions have been corrected in a manner acceptable to the Landscape Architect.

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South Park Slope and Irrigation Repairs SITE & STREET FURNISHINGS CIP - 603 129300 - 5
B. Verification:

1. Verify that substrates are stable and capable of supporting the weight of items covered under this Section.

2. Verify that substrates have been adequately prepared to securely anchor those items that will be surface mounted.

3.2 INSTALLATION
A. Salvaged Bench (Unit):

1. Salvaged Bench Unit shall be salvaged by contractor from site and protected until installed in place as located on the Contract Drawings, and as directed by the Contract Specifications. Verify exact locations (both at ground level and on-structure) with the City prior to installation.

2. Use actual Unit(s) to establish all dimensions for installation.

3. Erect and install Unit(s) in accordance with the Manufacturer's instructions and recommendations. Install unit(s) plumb, accurately, and in the correct orientation and relationship with other site furnishings, elements and/or paving as shown on the Contract Drawings.

4. Install all anchorage and mounting hardware, as applicable, in strict accordance with Manufacturer's instructions, and as directed by the City.

B. Table (Unit):

1. Table Unit shall be provided to contractor by the city and located as shown on the Contract Drawings, and as directed by the Contract Specifications. Verify exact locations (both at ground level and on-structure) with the City prior to installation.

2. Use actual Unit(s) to establish all dimensions for installation.

4. Install all anchorage and mounting hardware, as applicable, in strict accordance with Manufacturer's instructions, and as directed by the City.

3.3 PROTECTION
A. Protect installed furnishings against damage throughout the duration of the construction period, complying with Manufacturer's directions.

1. Remove and replace damaged furnishings as required to deliver factory-condition units at Final Acceptance of Work.

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South Park Slope and Irrigation Repairs SITE & STREET FURNISHINGS CIP - 603 129300 - 6

3.4 CLEANING
A. After completing site furnishing installation, inspect components. Remove protective packaging and dispose properly. Remove spots, dirt, and debris. Repair damaged finishes to match original finish, or replace component.

1. Touch-up Painting: Where directed by the Landscape Architect, clean field welds, bolted connections, and abraded areas of the Work. Paint exposed areas with paint or other material as supplied by the Manufacturer of the damaged Unit. Apply by brush, to thickness recommended by paint manufacturer.

END OF SECTION

Page 1011 of 1852 ends

South Park Slope and Irrigation Repairs SITE CLEARING
CIP- 603 311000 - 1
SECTION 311000 - SITE CLEARING
PART 1 - GENERAL

1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY
A. This Section includes the following:

1. Protecting existing trees, plants, turf, and groundcovers to remain.

2. Removing existing shrubs, plants, groundcovers and grass.

3. Clearing and grubbing.

4. Stripping and stockpiling topsoil.

5. Removing above- and below-grade site improvements.

6. Temporary erosion and sedimentation control measures.

B. Related Sections include the following:

1. Division 01 Section "Temporary Tree and Plant Protection" for protecting trees remaining on-site that are affected by site operations.

2. City of Hermosa Beach Grading and Construction Permit.

3. State Water Resources Control Board s (SWRCB) Construction General Permit (CGP).

1.3 DEFINITIONS
A. Topsoil: Natural or cultivated surface-soil layer containing organic matter and sand, silt, and clay particles; friable, pervious, and black or a darker shade of brown, gray, or red than underlying subsoil; reasonably free of subsoil, clay lumps, gravel, and other objects more than 2 inches (50 mm) in diameter; and free of subsoil and weeds, roots, toxic materials, or other nonsoil materials.

B. Tree Protection Zone: Area surrounding individual trees or groups of trees to be protected during construction, and defined by the drip line of individual trees or the perimeter drip line of groups of trees, unless otherwise indicated.

1.4 MATERIAL OWNERSHIP
A. Except for stripped topsoil or other materials indicated to remain City s property, cleared materials shall become Contractor's property and shall be removed from Project site.

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South Park Slope and Irrigation Repairs SITE CLEARING
CIP- 603 311000 - 2

1.5 SUBMITTALS
A. Existing Conditions: Documentation of existing trees and plantings, adjoining construction, and site improvements that establishes preconstruction conditions that might be misconstrued as damage caused by site clearing.

1. Use sufficiently detailed photographs or video recordings.

2. Include plans and notations to indicate specific wounds and damage conditions of each tree or other plant designated to remain.

B. Record Drawings: Identifying and accurately showing locations of capped utilities and other subsurface structural, electrical, and mechanical conditions.

1.6 QUALITY ASSURANCE
A. Preinstallation Conference: Conduct conference at Project site with applicable City staff.

1.7 PROJECT CONDITIONS
A. Traffic: Minimize interference with adjoining roads, streets, walks, and other adjacent occupied or used facilities during site-clearing operations.

1. Do not close or obstruct streets, walks, or other adjacent occupied or used facilities without permission from City and authorities having jurisdiction.

2. Provide alternate routes around closed or obstructed traffic ways if required by authorities having jurisdiction.

B. Improvements on Adjoining Property: Authority for performing site clearing indicated on property adjoining City s property will be obtained by City before award of Contract.

1. Do not proceed with work on adjoining property until directed by the City.

C. Salvable Improvements: Carefully remove items indicated to be salvaged and store on City s premises where indicated.

D. Utility Locator Service: Notify utility locator service for area where Project is located before site clearing.

E. Do not commence site clearing operations until temporary erosion and sedimentation control measures are in place.

F. Soil Stripping, Handling, and Stockpiling: Perform only when the soil is dry or slightly moist.

Page 1013 of 1852 ends

South Park Slope and Irrigation Repairs SITE CLEARING
CIP- 603 311000 - 3
PART 2 - PRODUCTS

2.1 NOT APPLICABLE
PART 3 - EXECUTION

3.1 PREPARATION
A. Protect and maintain benchmarks and survey control points from disturbance during construction.

B. Locate and clearly flag trees and vegetation to remain or to be relocated.

C. Protect existing site improvements to remain from damage during construction.

1. Restore damaged improvements to their original condition, as acceptable to City.

3.2 TEMPORARY EROSION AND SEDIMENTATION CONTROL
A. Provide temporary erosion and sedimentation control measures to prevent soil erosion and discharge of soil-bearing water runoff or airborne dust to adjacent properties and walkways, according to requirements of authorities having jurisdiction.

B. Inspect, repair, and maintain erosion and sedimentation control measures during construction until permanent vegetation has been established.

C. Remove erosion and sedimentation controls and restore and stabilize areas disturbed during removal.

3.3 TREE PROTECTION
A. Erect and maintain temporary fencing around tree protection zones before starting site clearing.

Remove fence when construction is complete.

1. Do not store construction materials, debris, or excavated material within fenced area.

2. Do not permit vehicles, equipment, or foot traffic within fenced area.

3. Maintain fenced area free of weeds and trash.

B. Do not excavate within tree protection zones, unless otherwise indicated.

C. Where excavation for new construction is required within tree protection zones, hand clear and excavate to minimize damage to root systems. Use narrow-tine spading forks, comb soil to expose roots, and cleanly cut roots as close to excavation as possible.

1. Cover exposed roots with burlap and water regularly.

2. Temporarily support and protect roots from damage until they are permanently redirected and covered with soil.

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South Park Slope and Irrigation Repairs SITE CLEARING
CIP- 603 311000 - 4

3. Coat cut faces of roots more than 1-1/2 inches (38 mm) in diameter with an emulsified asphalt or other approved coating formulated for use on damaged plant tissues.

4. Backfill with soil as soon as possible.

D. Repair or replace trees and vegetation indicated to remain that are damaged by construction operations, in a manner approved by City.

1. Employ an arborist, licensed in jurisdiction where Project is located, to submit details of proposed repairs and to repair damage to trees and shrubs.

2. Replace trees that cannot be repaired and restored to full-growth status, as determined by Architect.

3.4 UTILITIES
A. City will arrange for disconnecting and sealing indicated utilities that serve existing structures before site clearing, when requested by Contractor.

1. Verify that utilities have been disconnected and capped before proceeding with site clearing.

B. Locate, identify, disconnect, and seal or cap off utilities indicated to be removed.

1. Arrange with utility companies to shut off indicated utilities.

2. City will arrange to shut off indicated utilities when requested by Contractor.

C. Existing Utilities: Do not interrupt utilities serving facilities occupied by City or others unless permitted under the following conditions and then only after arranging to provide temporary utility services according to requirements indicated:

1. Notify City not less than two days in advance of proposed utility interruptions.

2. Do not proceed with utility interruptions without Architect's written permission.

D. Excavate for and remove underground utilities indicated to be removed.

3.5 CLEARING AND GRUBBING
A. Remove obstructions, trees, shrubs, grass, and other vegetation to permit installation of new construction.

1. Do not remove trees, shrubs, and other vegetation indicated to remain or to be relocated.

2. Cut minor roots and branches of trees indicated to remain in a clean and careful manner where such roots and branches obstruct installation of new construction.

3. Grind stumps and remove roots, obstructions, and debris extending to a depth of 18 inches (450 mm) below exposed subgrade.

4. Use only hand methods for grubbing within tree protection zone.

5. Chip removed tree branches and provide to city for stockpile, otherwise dispose of offsite.

B. Fill depressions caused by clearing and grubbing operations with satisfactory soil material as accepted by the City unless further excavation or earthwork is indicated.

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South Park Slope and Irrigation Repairs SITE CLEARING
CIP- 603 311000 - 5

1. Place fill material in horizontal layers not exceeding a loose depth of 8 inches (200 mm), and compact each layer to a density equal to adjacent original ground.

3.6 TOPSOIL STRIPPING
A. Remove sod and grass before stripping topsoil.

B. Strip topsoil to whatever depths are encountered in a manner to prevent intermingling with underlying subsoil or other waste materials.

1. Remove subsoil and nonsoil materials from topsoil, including trash, debris, weeds, roots, and other waste materials.

C. Stockpile topsoil materials away from edge of excavations without intermixing with subsoil.

Grade and shape stockpiles to drain surface water. Cover to prevent windblown dust.

1. Limit height of topsoil stockpiles to 72 inches (1800 mm).

2. Do not stockpile topsoil within tree protection zones.

3. Dispose of excess topsoil as specified for waste material disposal.

4. Stockpile surplus topsoil to allow for respreading deeper topsoil.

3.7 SITE IMPROVEMENTS
A. Remove existing above- and below-grade improvements as indicated and as necessary to facilitate new construction.

B. Remove slabs, paving, curbs, gutters, and aggregate base as indicated.

1. Unless existing full-depth joints coincide with line of demolition, neatly saw-cut length of existing pavement to remain before removing existing pavement. Saw-cut faces vertically.

2. Paint cut ends of steel reinforcement in concrete to remain to prevent corrosion.

3.8 DISPOSAL
A. Disposal: Remove surplus soil material, unsuitable topsoil, obstructions, demolished materials, and waste materials including trash and debris, and legally dispose of them off City s property.

1. Separate recyclable materials produced during site clearing from other nonrecyclable materials. Store or stockpile without intermixing with other materials and transport them to recycling facilities.

END OF SECTION

Page 1016 of 1852 ends

South Park Slope and Irrigation Repairs Landscape Grading CIP- 603 312219 - 1
SECTION 312219 LANDSCAPE GRADING
PART 1 - GENERAL

1.1 SUMMARY
A. This Section includes materials, labor, apparatus, tools, equipment, temporary construction, transportation, and services necessary for and incidental to performing the proper completion of Work for Finished Grading in Landscape Planting Areas, as shown in the Contract Drawings, and as specified herein this Section.

B. Work under this Section consists of, but is not necessarily limited to, furnishing and installing the following:

1. Finish Grading of Landscape Planting Areas.

C. Related Sections: The following Sections contain requirements that relate to Work in this Section:

1. Section 328400 Planting Irrigation.

2. Section 329113 Soil Preparation.

3. Section 329200 Lawns and Grasses.

4. Section 329300 Exterior Plants.

5. Section 329400 Landscape Planting Accessories.

6. Section 329813 Landscape Establishment Period.

1.2 SITE CONDITIONS
A. Dust Nuisance: Contractor shall assume full responsibility for alleviation or prevention of dust as a result of Work under this Section.

B. Excessive rock, dead or declining vegetation, trash, debris, or other items that has accumulated shall be removed from the Project Site by the Contractor, and as directed by the Landscape Architect, prior to completion of Finish Grading operations.

C. Work under this Section shall be performed only during the period when beneficial and optimum Landscape Grading results may be obtained. If the moisture content of the soil should reach such a level that working it would destroy soil structure or cause compaction. Landscape Grading operations shall be suspended until, in the opinion of the Landscape Architect, the moisture content is increased or reduced to acceptable levels and the desired results are likely to be obtained.

D. Soil moisture level prior to Landscape Grading shall be no less than 75% of field capacity. The determination of adequate soil moisture for Landscape Grading shall be in the sole judgment of the Landscape Architect.

Page 1017 of 1852 ends

South Park Slope and Irrigation Repairs Landscape Grading CIP- 603 312219 - 2

1.3 QUALITY ASSURANCE AND CONTROL
A. Installer Qualifications:

1. Valid California C-27 (Landscaping Contractor) License.

B. Engage an experienced, licensed Contractor who has completed landscaping work similar in material, design, and extent to that indicated for this Project and with a record of successful landscape establishment.

C. Installer's Field Supervision: Contractor shall maintain an experienced, full-time landscape supervisor/superintendent at the Project Site during times that landscaping operations identified herein the Contract are in progress.

1.4 COORDINATION, SCHEDULING:, AND OBSERVATIONS
A. Sequencing: Complete Finish Grading after general Soil Preparation (refer to Section 329113) and prior to installation of Irrigation System (Refer to Section 328400) in each area graded.

B. Re-grade, as required, to acceptable Landscape Grades established by Landscape Architect once irrigation system is installed.

C. Utilities: Determine location of above grade and underground utilities and perform Work in a manner which will avoid damage to utilities. Hand excavate, as required. Maintain grade stakes until removal is mutually agreed upon by parties concerned.

D. Excavation: When conditions detrimental to adequate Finish Grading operations are encountered, such as rubble fill, adverse drainage conditions, or obstructions, cease operations and notify Landscape Architect for further direction.

E. Perform Finish Grading operations only when weather and soil conditions are suitable in accordance with locally accepted practices.

F. Construction Site Observations: Periodic site observations shall be made by the Landscape Architect during the installation of Work under this Section for compliance with requirements.

Landscape Architect retains right to observe Work for defects and to reject unsatisfactory or defective work under this Section at any time during progress of Work. Contractor shall request, in writing, at least one (1) week in advance of the time when mandatory site observation(s) by the Landscape Architect are required.

PART 2 - PRODUCTS
(NOT APPLICABLE)

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South Park Slope and Irrigation Repairs Landscape Grading CIP- 603 312219 - 3
PART 3 - EXECUTION

3.1 EXAMINATION
A. Verification of Conditions: Verify that the following soil preparation items (per Section 329113) have been completed prior to commencement of Landscape Grading:

1. Installation of (stockpiled) topsoil and soil preparation, including debris removal.

2. Incorporation of soil amendments.

3.2 INSTALLATION
A. Subsoil Preparation:

1. Rough grade sub-soil systematically to allow for a maximum amount of natural settlement and compaction. Eliminate uneven areas and low spots. Remove debris, roots, branches, stones, etc. Remove sub-soil that has been contaminated with petroleum products.

2. Cut out areas to subgrade elevation which are to receive stabilizing base for paving and sidewalks.

3. Bring sub soil to required levels, profiles, and contours. Make changes in grade gradual.

Blend slopes into level areas.

4. Cultivate subgrade to a depth of threecultivation in areas where equipment used for hauling and spreading topsoil has compacted sub-soil.

B. Finish Grading:

1. In all planting areas, a layer of soil amendments and fertilizers shall be uniformly spread and thoroughly cultivated by means of mechanical tiller as recommended by the approved Agronomic Soil Fertility Report (per Section 329113 Soil Preparation).

Planting areas shall be free of all weeds, construction debris, trash, debris, and rocks in diameter or larger for a minimum depth of two2. Provide Finish Grades for natural runoff of water without low spots or pockets.

Accurately set flow line grades at a two-percent (2%) minimum positive gradient, unless otherwise noted in the Contract Drawings.

3. Finish Grades shall be smooth, even, and on a uniform plane with no abrupt changes, pits, or undulations of the surface. Slope grades uniformly between given spot elevations.

4. Finish Grades not otherwise indicated shall be uniform levels or slopes between points where elevations are given, or between points established by walks, paving, curbs or catch basins.

5. Tops and toes of slopes shall be gently rounded or feathered to produce a gradual and natural-appearing transition between relatively level areas and slopes, per the satisfaction of the Landscape Architect.

6. Slope grade away from buildings a minimum two- -
otherwise indicated on Contract Drawings.

C. Tolerances:

1. Planting areas, including areas planted with turf grasses, shall be true to grade within one- tenPage 1019 of 1852
South Park Slope and Irrigation Repairs Landscape Grading CIP- 603 312219 - 4

2. Hold Finish Grades in landscape planting areas below top of adjacent pavement, headers, curbs, or walls (where applicable), as follows:
a. Shrub, Annual and Groundcover Areas: One and one-half inches (1- b. Sodded Turf Grass Areas: OneEND OF SECTION

Page 1020 of 1852 ends

South Park Slope and Irrigation Repairs CONCRETE PAVING CIP - 603 321313 - 1
SECTION 321313 CONCRETE PAVING
PART 1 - GENERAL

1.1 SUMMARY
A. This Section includes materials, labor, apparatus, tools, equipment, temporary construction, transportation, and services necessary for and incidental to performing the proper completion of Work for Cast-in-Place Site Concrete Paving, as shown in the Contract Drawings, and as specified herein this Section.

B. Work under this Section consists of, but is not necessarily limited to, furnishing and installing the following:

1. Cast-in-Place Concrete Walkways

2. Jointing (Expansion Joints, Contraction Joints, Isolation Joints, Keyway/Construction Joints and/or Architectural Score Joints).

3. Joint Sealants.

4. Steel Reinforcement (Bars and/or Welded Wire Fabric).

5. Steel Dowels and Sleeves.

6. Compacted Sub-Surface Materials.

7. Concrete Pavement Finishes.

8. Concrete Paving Surface Sealants.

1.2 DEFINITIONS AND APPLICABLE STANDARDS
A. References:

1. AASHTO American Association of State Highway and Transportation Officials.

2. ADAAG American with Disabilities Act Accessibility Guidelines.

3. ACI American Concrete Institute.

4. ANSI American National Standards Institute.

5. ASTM American Society for Testing and Materials.

6. CRSI Concrete Reinforcing Steel Institute.

7. NRMCA National Ready Mix Concrete Association.

8. PCA Portland Cement Association.

9. SWRI Sealant, Waterproofing & Restoration Institute.

10. IBC International Building Code.

11. Standard Specifications Standard Specifications of the State of California, Business and Transportation Agency, Department of Transportation, CALTRANS, latest edition.

12. CBC California Building Code, Title 24 Disabled Access Regulations.

B. Definitions:

1. Cementitious Materials: Portland Cement alone or in combination with one or more of blended hydraulic cement, expansive hydraulic cement, fly ash and other pozzolans, ground granulated blast-furnace slag, and silica fume.

2. Percent Compaction: Per ASTM D1557, percentage of the maximum in-place dry density of the same material, as determined by Geotechnical Engineer.

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C. Standards of Construction:

1. ACI 214 Recommended Practice for Evaluation of Strength Tests Results of Concrete.

2. ACI 301 Details and Detailing of Concrete Reinforcement.

3. ACI 303.1 Standard Specification for Cast-in-Place Architectural Concrete.

4. ACI 304 Recommended Practices for Measuring, Mixing, Transporting, and Placing of Concrete.

5. ACI 305 Recommended Practices for Cold Weather Concreting.

6. ACI 306 Recommended Practices for Hot Weather Concreting.

7. ACI 308 Standard Practice for Curing Concrete.

8. ACI 347 Recommended Practice for Concrete Formwork.

9. ASTM A185 Standard Specification for Steel Welded Wire Reinforcement, Plain, for Concrete.

10. ASTM A615 Specification for Deformed and Plain Billet-Steel Bars for Concrete Reinforcement.

11. ASTM C33 Standard Specification for Concrete Aggregates.

12. ASTM C39 Test Method for Compressive Strength of Cylindrical Concrete Specimens.

13. ASTM C94 Standard Specification for Ready-Mix Concrete.

14. ASTM C136 Method for Sieve Analysis of Fine and Coarse Aggregate.

15. ASTM C143 Test Method for Slump of Portland Concrete Cement.

16. ASTM C150 Standard Specification for Portland Cement.

17. ASTM C260 Standard Specification for Air-Entraining Admixtures for Concrete.

18. ASTM C309 Liquid Membrane-Forming Compounds for Curing Concrete.

19. ASTM C494 Standard Specification for Chemical Admixtures for Concrete.

20. ASTM C920 Standard Specification for Elastomeric Joint Sealants.

21. ASTM C979 Standard Specification for Pigments for Integrally Colored Concrete.

22. ASTM D1751 Standard Specification for Preformed Expansion Joint Fillers for Concrete Paving and Structural Construction (Non-Extruding and Resilient Bituminous Types).

23. Certificate of Conformance
for Concrete Production Facilities
D. Measurements:

1. PSI: Measurement, in pounds per square inch.

2. CU/FT: Measurement, in cubic-foot.

1.3 SUBMITTALS
A. General:

1. Collect information into a single Submittal for each element of construction and type of product or equipment identified under this Section for review.

Highlight catalog, product data, or brochures containing various products, sizes, and materials to show particular item submitted.

3. Submittal Format: As applicable, furnish Submittal as a single electronic digital PDF (Portable Document Format) file.

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B. Digital Submittal Information:

1. Product/Material Data: Submit available product/material literature supplied by Provide manufacturing source (name, address, and telephone number), and distributor source (name, address, and telephone number) for each type of product/material:
a. Reinforcement and Forming Accessories.
b. Cementitious Materials.
c. Integral Aggregates (Coarse and Fine).
d. Chemical Admixtures.
e. Jointing Materials and Systems, including Joint Sealants. f. Curing Compounds.
g. Paving Surface Sealants.

2. Statement of Mix Design: Prepared by the batch plant servicing the Project, submit for each type or load delivered to Project. Include revised mix proportions when characteristics of materials, project conditions, weather, test results, or other circumstances warrant adjustments. Each Statement of Mix Design shall include the following:
a. Name, address, and telephone number of batch plant preparing Statement of Mix Design.
b. Date of Mix Design.
c. Project location.
d. Contractor requesting load delivery.
e. Mix Design Number.
f. Admixtures (as required).
g. Integral Color Admixtures (as required).
h. Gradations for sand and aggregate.
i. Material weights, specific gravity, and absolute volumes. j. Basis of testing, i.e. IBC 2605 D4 and CBC Title 24 2604 D4. k. Water/Cementitious Materials Ratio (W/CM Ratio).
l. Slump.
m. PSI Rating.

3. Material Test Reports: Signed and stamped laboratory test reports for evaluation of concrete materials and mix design tests.

4. Material Certificates: Submit, in lieu of material laboratory test reports, when permitted by the Landscape Architect. Material certificates shall be signed by the Manufacturer and Contractor certifying that each material item complies with or exceeds requirements.

Provide certification from admixture manufacturers that chloride content complies with requirements.

5. Scaled Shop Drawings: Submit Scaled Shop Drawings for form work, indicating fabrication and erection of forms for specific finished concrete surfaces. Show form construction including jointing, special form joints or reveals, location and pattern of form tie placement, pour sequencing, dimensioned locations of all construction, control and expansion joints, and other items that affect exposed concrete visually. a. Review with the Landscape Architect for general architectural applications and features only. Designing form work for structural stability and efficiency shall be

6. ticle to demonstrate their capabilities and experience on similar Concrete Paving installations. Include lists of completed projects with project names and addresses, names and addresses of Architects/Landscape Architects, Artists and Owners, and other information specified.

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7. Minutes of Pre-Installation Conference, distributed and approved in writing as to the content of the conference by concerned parties in attendance.

8. Submittals for Environmental Performance:
a. Provide data indicating the percentage of post-industrial pozzolan (fly ash, blast furnace slag) cement substitution as a percentage of the full product composite by weight.
b. Provide data indicating the percentage of post-industrial and post-consumer recycled content aggregate.
c. Provide product data indicating the percentage of post-consumer recycled steel content in each type of steel reinforcement as a percentage of the full product composite by weight.
d. Provide product data stating the location where all products were manufactured and where the raw materials were harvested, extracted or recovered. e. For projects using FSC certified formwork, provide chain-of-custody documentation for all certified wood products.
f. For projects using reusable formwork, provide data showing how formwork is reused.
g. Provide MSDS product information data showing that form release agents meet any environmental performance goals such as using vegetable and soy based products.
h. Provide MSDS product information data showing that concrete adhesives meet any environmental performance goals including low emitting, low volatile organic compound products.

C. Material Samples: Submit four (4) sets of physical Material Samples for review of kind, color, pattern, size, and texture for a check of these characteristics with other elements, and for a comparison of these characteristics between Submittal and actual component as delivered and installed. Include the full range of exposed color and texture expected in the completed Work.

Provide Material Samples bound and individually wrapped in re-sealable labeled 1-gallon plastic bags (as applicable):

1. One- -
D. Submittals under this Article will be rejected and returned without the benefit of review by the Landscape Architect if they are difficult to read due to insufficient scale, poor image quality, or poor drafting quality; or if all of the required information is missing or not presented in the format as requested. Partial Submittals will not be accepted.

E. No Work under this Section shall proceed until all information indicated herein this Article have been reviewed, accepted, and approved by the Landscape Architect, in writing.

1.4 QUALITY ASSURANCE AND CONTROL
A. Installer Qualifications: Engage an experienced Installer who has completed in the last two (2) years at least three (3) concrete paving installations similar in material, design, and extent to that indicated for this Project, and whose work has resulted in construction with a record of successful in-service performance.

1. Requirement: Valid California C-8 (Concrete Contractor) License.

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B. Applicable Standards of Work:

1. Applicable specifications and recommended practices of American Concrete Institute (ACI), American Society for Testing and Materials (ASTM), The Uniform Building Code, with their individual designations, are to be considered part of this Specification. herein this Section.

2. Design and Control of Concrete Mixture, Thirteenth Edition, Portland Cement Association.

3. Manual of Standard Practice, Concrete Reinforcing Steel Institute (CRSI).

4. , Sealant, Waterproofing & Restoration Institute
(SWRI).

C. Single-Source Responsibility: Obtain each color, type, and variety of cementitious materials, aggregates (coarse and fine), chemical admixtures, water source, jointing materials, and other materials, from a single source, with resources to provide products and materials of consistent quality in appearance and physical properties without delaying the Work.

D. Concrete Manufacturer Qualifications: Manufacturer of ready-mixed concrete products complying with ASTM C94 requirements for production facilities and equipment.

1. Manufacturer shall be certified according to the National Ready Mix Concrete Association's Plant Certification Program.

E. Testing Agency Qualifications: An independent testing agency, acceptable to authorities having jurisdiction, qualified according to ASTM C1077 and ASTM E329 to conduct the testing indicated, as documented according to ASTM E548.

F. Concrete Testing Service: Engage a qualified independent testing agency to perform material evaluation tests and to design concrete mixes.

G. Lines and Levels: To be established by a licensed Surveyor or registered Civil Engineer.

H. Permits, Fees, Bonds, Tests, and Inspections: Contractor shall arrange and pay for permits, fees, bonds, tests, and inspections necessary to perform and complete Work under this Section.

I. Pre-installation Conference: Before installing Work as indicated herein this Section, conduct a Pre-installation Conference at the Project Site with the Landscape Architect to review requirements and design objectives, including a review of concrete textures, colors, finishes, layouts, and other design intents of the Work. Conference shall be held prior to erecting the Field-Constructed Mock-up Samples.

1. Notify participants in writing at least five (5) working days prior to Conference.

1.5 DELIVERY, STORAGE, AND HANDLING
A. Deliver materials in a timely manner to ensure un-interrupted progress of the Work.

B. Store materials in a dry and protected location. Protect reinforcing steel and dowels from rusting, deformation, staining, and moisture damage.

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C. Store materials by methods that prevent damage and permit ready access for inspection and identification. Package cement delivered to the Project Site shall be in strong paper or jute bags with brand name and manufacturer's name stamped thereon. Store cement under cover.

Remove packaged cement immediately from the Project Site should it become wet or show any signs of caking or deterioration.

1.6 PROJECT SITE CONDITIONS
A. Traffic Control: Maintain access for vehicular, bicycle, and pedestrian traffic as required for other construction activities. Access to the surrounding buildings shall also be unobstructed and maintained at all times to allow for entry and exit of emergency vehicles.

B. Do not place concrete during rain or adverse weather conditions without means to prevent damage. Conform to requirements specified hereinafter whenever concrete placement is required during cold or hot weather.

C. Dust Nuisance and Control: Contractor shall assume full responsibility for alleviation or prevention of dust as a result of Work under this Section. Maintain control of Concrete Paving dust during duration of Contract. Do not permit adjacent planting areas to be contaminated.

D. Grades and Levels: Establish and maintain required levels and grade elevations. Review installation procedures and coordinate Work in this Section with other Work affected.

1. Lines and Levels to be established by a licensed Surveyor or registered Civil Engineer.

E. Keep Work area clean, and in a safe and workmanlike condition so that rubbish, waste, and debris does not interfere with Work of other trades.

1.7 COORDINATION, SCHEDULING, AND OBSERVATIONS
A. Sequence and Scheduling: Notify Contractors performing Work related to installation of Work under this Section in ample time so as to allow sufficient time for them to perform their portion of Work and that progress of Work is not delayed. Verify conditions at the Project Site for Work that affects installation under this Section. Coordinate items of other trades to be furnished and set in place, such as:

1. Irrigation Pipe Sleeves under paving. Refer to Section 328400 Irrigation Systems.

2. Accessories embedded in the concrete, and for the provision of holes, openings, etc., necessary to the execution of the Work of the trades.

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D. Excavation: When conditions detrimental to adequate installation operations are encountered, such as rubble fill, adverse drainage conditions, or obstructions, cease operations and notify Landscape Architect for further direction.

E. Environmental Conditions: Perform installation operations only when weather and soil conditions are suitable in accordance with locally-accepted practices.

F. Construction Site Observations: Periodic site observations shall be made by the Landscape Architect during the installation of Work under this Section for compliance with requirements for type, size, and quality. Landscape Architect retains right to observe Work for defects and to reject unsatisfactory or defective material at any time during progress of Work. Contractor shall remove rejected materials immediately from Project site. Contractor shall request, in writing, at least one (1) week in advance of the time when mandatory site observation(s) by the Landscape Architect are required.

1.8 SUBSTITUTIONS
A. Consideration: Materials to be considered equal to the Materials indicated herein this Section shall be reviewed by the Landscape Architect. Materials with equal performance characteristics in dimensional size, color, composition, operation, and/or other characteristics do not change the design concept, aesthetic appearance, nor intended performance, as solely judged by the Landscape Architect. The burden of proof on product equality is on the Contractor.

B. re used as standards
of quality. This implies no right to the Contractor to substitute other materials without prior written approval by the Landscape Architect for Work under this Section.

D. Contract Price: Substituted Materials under this Section shall not increase the Contract price.

PART 2 - PRODUCTS

2.1 FORMS
A. Form Materials: Plywood, wood, MDO plywood, metal, metal-framed plywood, or other approved panel-type materials, of size and strength to resist movement during concrete placement and to retain horizontal and vertical alignment until removal.

1. Provide Forms that are full-depth, continuous, straight and free of distortions and defects, and level or sloping along exposed surfaces.

2. Provide Forms of sufficient strength and durability to hold concrete properly in place and prevent leakage of water from Forms.

3. Use flexible spring forms, laminated boards, or foam forms to form radius bends, as required.

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4. No wood-textured finish from Forms will be permitted on exposed concrete unless specified as such.

5. Textured Form Facings: Refer to Contract Drawings or requirements indicated herein this Section, as required.

B. Form Release Agent: Premium, Volatile Organic Compound (VOC)-compliant (low to no VOC), 100% biodegradable liquid-based (either natural emulsified vegetable oil-based, soybased, or water-based), colorless, non-staining Form Release Agent. Agent shall not bond with, leave no residual matter on concrete surfaces, nor adversely affect the bond or performance of subsequent treatments to the concrete surfaces.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Atlas Bio-Guard 2000, Atlas Tech Products.
b. Bio Release Agent, Burke, Edoco.
c. Enviroform, Conspec, Dayton Superior Company.
d. Bio-Release EF, Conspec, Dayton Superior Company.
e. Bio-Form, Leahy-Wolf Company.
f. Crete-Lease 20-VOC, Cresset Chemical Company.
g. Duogard II, W.R. Meadows, Inc.
h. FORMSHIELD WB, Tamms Industries.
i. Greenplus Form Release Agent ES, Greenland Corporation. j. Soy Form Release and Natural Form Oil, Natural Soy, LLC. k. SOYsolv Concrete Form Release Agent, SOYsolv.
l. Or equal, as approved by the Landscape Architect.

2.2 STEEL REINFORCEMENT
A. Steel Tie Wire: 16-gauge minimum, black annealed, plain cold-drawn steel conforming to ASTM A82, clean, and free of rust, dirt, grease or oils.

B. Construction/Expansion Joint Dowel Bars & Slip Dowel Sleeves:

1. Steel Joint Dowel Bars: Meet ASTM A615, Grade 40 smooth, billet-steel, shop painted with iron-oxide zinc-chromate primer, free of rust, dirt, grease, and oils. Cut Bars true to length with ends square and free of burrs.
a. Length and Size: As indicated on the Contract Drawings.

2. Slip Dowel Sleeve System: A reusable base and plastic sleeve, manufactured from polypropylene plastic. Encase fifty percent (50%) of each dowel in a plastic sleeve to allow parallel lateral movement of each Dowel. Size of Sleeve to match size of Dowel. a. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
1) Speed Dowel, Greenstreak.
2) Or equal (no known equal).

C. Epoxy-Coated Steel Welded Wire Fabric: Meet ASTM A884, Class A, plain steel, fabricated from as-drawn steel wire into flat sheets. Rolls are not acceptable.

D. Epoxy-Coated Steel Reinforcement Bars: Meet ASTM A775, with ASTM A615, Grade 60, deformed bars.

E. Epoxy-Coated Steel Wire: Meet ASTM A884, Class A coated, plain steel.

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F. Epoxy Repair Coating: Liquid, two-part epoxy repair coating, compatible with epoxy coating on reinforcement.

G. Snap Ties: Snap-off metal of fixed length capable of leaving no metal within 1 1/2 in. of surface or causing fractures, spall, or other defects larger than one (1) in. diameter.

H. Hook Bolts: ASTM A307, Grade A internally and externally threaded. Design hook-bolt joint assembly to hold coupling against pavement form and in position during concreting operations, and to permit removal without damage to concrete or hook bolt.

I. Supports for Reinforcement: Lightweight, strong, non-corrosive, durable, and impervious to water. Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcement bars, welded wire fabric, and dowels in place, as manufactured from 100% recycled-content plastic or engineered resins from recycled ABS plastic, polycarbonates, and fiberglass.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Rebar Supports, Eclipse Plastics Inc.
b. Concrete Casting Plastic Rebar Supports, Build Global, Inc. c. Reinforcing Bar Supports, Shin Hwa Industrial Co.
d. Plastic Rebar Supports, Plasticon International, Inc. e. Bar Lift Plastic Support, New Century Northwest.
f. Aztec Composite Plastic Rebar Supports, Dayton Superior. g. Or equal, as approved by the Landscape Architect.

2.3 CONCRETE MATERIALS
A. Portland Cement: Meet ASTM C150. Use one (1) brand of cement (single source) throughout the Project, unless otherwise acceptable to the Landscape Architect. Contractor shall verify the cement color with the Landscape Architect. Cement Type as follows:

1. Cement Type: Type II.

B. Normal-Weight Aggregates: Meet ASTM C33, Class 1N, and as follows:

1. Fine Aggregates: Meet ASTM C33, clean, hard, non-reactive, and durable sand, in accordance with SSPWC Section 200-1.5.3
a. Grading Requirements:

Sieve Size Percent Passing
100%
No. 4 95-100%
No. 8 75-95%
No. 16 55-75%
No. 30 30-50%
No. 50 10-25%
No. 100 2-10%

2. Coarse Aggregates: Meet ASTM C33, hard, durable, non-reactive, un-coated, graded, cleaned, and screened crushed rock or gravel aggregate for regular weight concrete. a. Grading: Gradation in accordance with SSPWC-Table 200-1.4(B).

3. Local aggregates not complying with ASTM C33 that have been shown to produce concrete of adequate strength and durability by special tests or actual service may be used when acceptable to the Landscape Architect.

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C. Water: Per ASTM C1602, from potable domestic source, free from deleterious materials such as oils, acids, and organic matter.

D. Pozzolans:

1. Fly Ash: Meet ASTM C618, Type C or F.

2. Ground Granulated Iron Blast-Furnace Slag: Meet ASTM C989, Grade 100 or 120.

3. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Boral Material Technologies Inc.
b. Full Circle Solutions Inc.
c. Headwater Resources, Inc.
d. Holcim US, Inc.
e. Lafarge North America.
f. Mineral Resource Technologies, LLC.
g. Mineral Solutions, Inc.
h. The SEFA Group.

2.4 CHEMICAL ADMIXTURES FOR CONCRETE
A. General: Admixtures shall be certified by the Manufacturer to contain not more than 0.1 percent water-soluble chloride ions by mass of cement and to be compatible with other Admixtures. Use of Admixtures shall not relieve the Contractor of the designated concrete requirements, including strength.

B. Air-Entraining Admixture: Meet ASTM C260.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Daravair 1000, Grace Construction Products, 800-433-0020. b. Micro-Air, Master Builders, Inc., 800-628-9990.
c. , Axim Italcementi Group, 800-899-8795.
d. Or equal, as approved by the Landscape Architect.

2. Application Rate: Per selected
C. Water-Reducing Admixture: Meet ASTM C494, Type A.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. WRDA, Grace Construction Products, 800-433-0020.
b. Micro-Air, Master Builders, Inc., 800-628-9990.
c. Eucon NW, Euclid Chemical Co., 800-321-7628.
d. GP, Axim Italcementi Group, 800-899-8795.
e. Plastocrete® 161, Sika Corporation, 800-933-sika.
f. Or equal, as approved by the Landscape Architect.

2. D. Water-Reducing and Set Retarding Admixture: Meet ASTM C494, Type B and D.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Daratard 17 Set Retarder, Grace Construction Products, 800-433-0020. b. Pozzolith Retarder, Master Builders, Inc., 800-628-9990. c. Or equal, as approved by the Landscape Architect.

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2. E. Shrinkage-Reducing Admixture: Meet ASTM C157. Provide at dosage of 2% by weight of cement.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Eclipse, Grace Construction Products, 800-433-0020.
b. Tetraguard, Master Builders, Inc., 800-628-9990.
c. Or equal, as approved by the Landscape Architect.

2. Applic
F. Dampproofing Admixture: Hydrophobic, Meeting ASTM C836-81, fluid-V single component, bitumen-modified, moisture-curing polyurethane, added at time of batching.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Darapel, Grace Construction Products, 800-433-0020.
b. Rheomix 235, Master Builders, Inc., 800-628-9990.
c. Tremproof 60, Tremco, 800-321-7906.
d. Or equal, as approved by the Landscape Architect.

2. G. Integral Concrete Coloring Admixture: Provide materials specifically designed for use in ready-mix concrete, from a single source, and shall be like in color and visual appearance.

Meet ASTM C979.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Refer to the Cast-in-Place Concrete Pavement Schedule indicated herein this Section for requirements.
b. Or equal, as approved by the Landscape Architect.

2. 2.5 CURING MATERIALS
A. Absorptive Cover: Burlap cloth, made from jute or kenaf, weighing approximately 9 oz. per sq. yd., complying with AASHTO M182, Class 2.

B. Moisture-Retaining Cover: One (1) of the following, complying with ASTM C171.

1. Polyethylene film.

C. Clear Solvent-Borne Liquid Membrane-Forming Curing Compound: Spray-applied, ready-touse, meeting ASTM C309, Type I, Class B. Material shall meet the maximum Volatile Organic Compound (VOC) content of 350 g/L for concrete curing compounds as required by the U.S.

EPA Architectural Coatings Rule and shall be VOC-compliant for the State of California Regulation 8, Organic Compounds, Rule 3, Architectural Coatings.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. AH Curing Compound #2 DR, Anti-Hydro International, Inc. b. Res-X Cure All Resin, Burke Group, LLC.
c. RX Cure; Conspec Marketing & Manufacturing Co., Inc. d. Day-Chem Rez Cure, Dayton Superior Corporation.

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e. Kurez DR, Euclid Chemical Co.
f. Nitocure S, Fosroc.
g. #64 Resin Cure, Lambert Corporation.
h. L&M Cure DR, L&M Construction Chemicals, Inc.
i. 3100-Clear, W. R. Meadows, Inc.
j. Seal N Kure FDR, Metalcrete Industries.
k. Rich Cure, Richmond Screw Anchor Co.
l. Resi-Chem C309, Symons Corporation.
m. Horncure 30, Tamms Industries Co., Div. of LaPorte Construction Chemicals N.A., Inc.
n. Uni Res 150, Unitex.
o. Certi-Vex RC, Vexcon Chemicals, Inc.
p. Or equal, as approved by the Landscape Architect.

2. D. Clear Water-Borne Membrane-Forming Curing Compound: Spray-applied, ready-to-use, meeting ASTM C309, Type I, Class A. Material shall meet the maximum Volatile Organic Compound (VOC) content of 350 g/L for concrete curing compounds as required by the U.S.

EPA Architectural Coatings Rule and shall be VOC-compliant for the State of California Regulation 8, Organic Compounds, Rule 3, Architectural Coatings.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. AH Curing Compound #2 DR WB, Anti-Hydro International, Inc. b. Spartan-Cote, Burke Group, LLC.
c. Safe-Cure Clear, ChemMasters.
d. W.B. Resin Cure, Conspec Marketing & Manufacturing Co., Inc. e. Day Chem Rez Cure (J-11-W), Dayton Superior Corporation. f. Cure & Seal 30 EF, Conspec, Dayton Superior Corporation. g. Nitocure S, Fosroc.
h. Aqua Kure-Clear, Lambert Corporation.
i. L&M Cure R, L&M Construction Chemicals, Inc.
j. 1100 Clear, W. R. Meadows, Inc.
k. Resin Cure E, Nox-Crete Products Group, Kinsman Corporation. l. Rich Cure E, Richmond Screw Anchor Co.
m. Resi-Chem Clear Cure, Symons Corporation.
n. Horncure 100, Tamms Industries Co., Div. of LaPorte Construction Chemicals N.A., Inc.
o. Hydro Cure, Unitex.
p. Certi-Vex Enviocure, Vexcon Chemicals, Inc.
q. Clear-Seal 150, A.C. Horn.
r. Master Seal, Master Builders.
s. Kure-N-Seal, Sonneborn.
t. Atlas Quantum Cure, Atlas Tech Poducts.
u. Or equal, as approved by the Landscape Architect.

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E. White Water-Borne Membrane-Forming Curing Compound: Spray-applied, ready-to-use, meeting ASTM C309, Type 2, Class B. Material shall meet the maximum Volatile Organic Compound (VOC) content of 350 g/L for concrete curing compounds as required by the U.S.

EPA Architectural Coatings Rule and shall be VOC-compliant for the State of California Regulation 8, Organic Compounds, Rule 3, Architectural Coatings.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. AH Curing Compound #2 WB WP, Anti-Hydro International, Inc. b. Aqua Resin Cure, Burke Group, LLC.
c. W.B. Resin Cure, Conspec Marketing & Manufacturing Co., Inc. d. Thinfilm 450, Kaufman Products, Inc.
e. Aqua Kure-White, Lambert Corporation.
f. L&M Cure R-2, L&M Construction Chemicals, Inc.
g. 1200-White, W. R. Meadows, Inc.
h. White Pigmented Resin Cure E, Nox-Crete Products Group, Kinsman Corporation. i. Rich Cure White E, Richmond Screw Anchor Co.
j. Resi-Chem High Cure, Symons Corporation.
k. Horncure 200-W, Tamms Industries Co., Div. of LaPorte Construction Chemicals N.A. Inc.
l. Hydro White 309, Unitex.
m. Or equal, as approved by the Landscape Architect.

2. Application Rate: Per selected Manufacture
F. Evaporation Retarder: Waterborne, spray-applied, ready-to-use, mono-molecular film-forming compound, formulated to be applied to fresh concrete surfaces, for temporary protection from rapid moisture loss. Material shall meet the maximum Volatile Organic Compound (VOC) content of 350 g/L for concrete curing compounds as required by the U.S. EPA Architectural Coatings Rule and shall be VOC-compliant for the State of California Regulation 8, Organic Compounds, Rule 3, Architectural Coatings.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Cimfilm, Axim Concrete Technologies.
b. Finishing Aid Concentrate, Burke Group, LLC.
c. Spray-Film, ChemMasters.
d. Aquafilm, Conspec Marketing & Manufacturing Co., Inc. e. Sure Film, Dayton Superior Corporation.
f. Eucobar, Euclid Chemical Co.
g. Vapor Aid, Kaufman Products, Inc.
h. Lambco Skin, Lambert Corporation.
i. E-Con, L&M Construction Chemicals, Inc.
j. Confilm, Master Builders, Inc.
k. Waterhold, Metalcrete Industries.
l. Rich Film, Richmond Screw Anchor Co.
m. SikaFilm, Sika Corporation.
n. Finishing Aid, Symons Corporation.
o. Certi-Vex EnvioAssist, Vexcon Chemicals, Inc.
p. Or equal, as approved by the Landscape Architect.

2. Application Rate: Per selected Manufa

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G. Surface Set-Retarder: Spray-applied, ready-to-use, water-based solution with color dye, nonstaining, non-corrosive, non-flammable, non-toxic, specifically formulated to retard the set of fresh concrete surfaces, temporarily delaying final hardening of concrete to a depth of 1/8 to 1/4 inch (to expose the surface aggregates). Material shall meet the maximum Volatile Organic Compound (VOC) content of 350 g/L for concrete curing compounds as required by the U.S.

EPA Architectural Coatings Rule and shall be VOC-compliant for the State of California Regulation 8, Organic Compounds, Rule 3, Architectural Coatings.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Top- Grace Construction Products, Inc.
b. TK6000 Concrete Surface Retarder, TK Products.
c. Top-Etch Surface Retarder, Unitex Chemicals.
d. R-30 Surface Retarder, Specco Industries.
e. Certi-Vex Envio Set, Vexcon Chemicals, Inc.
f. True Etch Surface Retarder, Burke Group, LLC.
g. Exposee, ChemMasters.
h. Delay S, Conspec Marketing & Manufacturing Co., Inc. i. Concrete Surface Retarders, Euclid Chemical Co.
j. Expose, Kaufman Products, Inc.
k. Surftard, Metalcrete Industries.
l. Crete-Nox TA, Nox-Crete Products Group, Kinsman Corporation. m. Lithotex, L. M. Scofield Co.
n. Rugasol-S, Sika Corporation.
o. Certi-Vex Envioset, Vexcon Chemicals, Inc.
p. Atlas Top Etch, Atlas Tech Products.
q. or equal, as approved by the Landscape Architect.

2. d instructions.

H. Spray applied, film forming protective coating, for surfaces adjacent to Set-Retarded finish surfaces.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Face Off, Grace Construction Products, Inc.
b. Or equal, as approved by the Landscape Architect.

I. Release Agent for Stamped Concrete Applications: High-performance, colorless, liquid-borne, spray-applied bond breaker material intended for specific use when imprinting freshly placed colored or uncolored concrete flatwork or imprintable cement toppings. Material shall meet the maximum Volatile Organic Compound (VOC) content of 450 g/L for concrete curing compounds as required by the U.S. EPA Architectural Coatings Rule and shall be VOCcompliant for the State of Nevada.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Lithotex® Liquid Release, LM Scofield.
b. Brickform.
c. Release Agent, Bonway.
d. Liquid Release Agent, Matcrete.
e. Or equal, as approved by the Landscape Architect.

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2.6 RELATED MATERIALS
A. Bonding Agent: ASTM C1059, Type II, non-redispersible, acrylic emulsion or styrene butadiene.

B. Epoxy Bonding Adhesive: ASTM C881, two-component epoxy resin, capable of humid curing and bonding to damp surfaces, of class and grade to suit requirements, and as follows:

1. Type II, non-load bearing, for bonding freshly mixed concrete to hardened concrete.

2. Types I and II, non-load bearing, for bonding hardened or freshly mixed concrete to hardened concrete.

3. Types IV and V, load bearing, for bonding hardened or freshly mixed concrete to hardened concrete.

C. Expansion Joint Materials:

1. Expansion Joint-Filler Strips:
a. Asphalt-Saturated Cellulosic Fiber, meeting ASTM D1751, with removable depth gauge cap. Expansion Joint-Filler Strip shall be versatile, resilient, flexible and non-extruding. When compressed to half of its original thickness, it shall recover to a minimum of 70% of its original thickness. 1) Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a) Sealtight Fibre with Snap Cap, WR Meadows.
b) Fiber Board, APS Supply.
c) or equal, as approved by the Landscape Architect.
2) Thickness/Width: As indicated on the Contract Drawings. b. Clean selected Granulated Cork, bonded with a phenolic resin, meeting ASTM D
1) Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a) Sealtight Standard Cork, WR Meadows.
b) Standard Cork Expansion Joint Filler, APS Supply.
c) or equal, as approved by the Landscape Architect.
2) Thickness/Width: As indicated on the Contract Drawings. c. Self-sealing, non-absorbent A
the finished surface, a joint sealant is not required.
1) Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a) SealTight Asphalt, WR Meadows.
b) or equal, as approved by the Landscape Architect.
2) Thickness/Width: As indicated on the Contract Drawings.

2. Joint Sealant Backing:
a. General: Provide Joint Sealant Backings which are non-staining; are compatible with joint substrates, sealants, primers and other joint fillers; and are approved by sealant manufacturer.
b. Plastic Foam Joint-Fillers: Preformed, compressible, resilient, non-waxing, nonextruding strips of closed cell plastic foam, of size, shape and density to control sealant depth.
c. Bond Breaker: Pressure-sensitive tape, as recommended by Joint Sealant manufacturer, to suit application.

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3. Miscellaneous Joint Sealant Materials:
a. Primer: As recommended by joint sealant Manufacturer for adhesion of sealant to joint substrates.
b. Cleaners for Nonporous Surfaces: Non-staining, chemical cleaner of type acceptable to manufacturer of sealant and sealant backing materials which are not harmful to substrates and adjacent nonporous materials. c. Masking Tape: Non-staining, non-absorbent type compatible with joint sealants and to surfaces adjacent to joints.

4. Joint Sealant:
a. Horizontal Applications: Meet ASTM C920, Type S (single-component), Grade P (pourable/self-leveling) Class 25 (withstands increase/decrease of 25% of joint width), Use T (pedestrian & vehicular traffic areas), Low-VOC, cold-applied, elastomeric polyurethane Joint Sealant for exterior applications. Color to match adjacent paving color finish.
1) Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a) Sika Corporation.
b) Tremco, Inc.
c) Sonneborn.
d) Pecora Corporation.
e) or equal, as approved by the Landscape Architect.

2.7 CONCRETE MIXES AND PROPORTIONING
A. Proportion and mix of cement, aggregate, admixture and water to attain required plasticity and strength for each type of normalPCA "Design and Control of Concrete Mixtures."

1. Use transit mixer trucks equipped with automatic devices for recording number of revolution of drum.

B. Use a qualified independent testing agency for preparing and reporting proposed mix designs for the trial batch method, using approved materials to obtain specified minimum compressive strength.

1. -control testing agency as the independent testing
agency.

C. Slump: Adjust quantity of water so concrete at point and time of discharge does not exceed the aforementioned slumps when tested per ASTM C143. Use the minimum water necessary for workability required by part of item being cast.

D. Proportion Concrete Mixes to provide Concrete with the following properties:

1. Pedestrian Use Areas:
a. Compressive Strength (at 28 Days): Minimum 3,000 PSI. b. at point of discharge, with a 1/2-inch
slump differential between successive batches. Obtain approval from the Landscape Architect if slump is outside these parameters. c. Maximum Water/Cementitious Materials Ratio: .50.
d. Cement Content: Minimum six (6) - sack mix (564 lbs. cement per cubic yard).

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E. Cementitious Materials: Limit percentage, by weight, of cementitious materials (other than Portland Cement) in concrete as follows:

1. Fly Ash: Provide twenty-percent (20%) maximum content.

F. Add Air-Entraining Admixture at the Manufacturer's prescribed rate to result in concrete at point of placement having an air content of 2.5 to 4.5 percent.

G. Coloring Agent: Add coloring agent to mix according to Manufacturer's written instructions.

H. Non-Chloride Accelerators: Do not use corrosive accelerators such as calcium chloride.

I. Concrete Delivery: Use of concrete loads exceeding ninety (90) minutes from time of batch plant must be approved by the Landscape Architect.

J. Ensure that the batch plant guarantees a single-source supply for cementitious materials and aggregates (coarse and fine) for the entire project.

2.8 CONCRETE MIXING
A. Ready-Mixed Concrete: Comply with requirements and with ASTM C94.

B. When air temperature is between 85 deg. F. (30 deg. C.) and 90 deg. F. (32 deg. C.), reduce mixing and delivery time from 1-1/2 hours to 75 minutes; when air temperature is above 90 deg.

F. (32 deg. C.), reduce mixing and delivery time to 60 minutes.

2.9 CONCRETE SEALANTS
A. Penetrating Concrete Sealer:

1. Applications: Refer to the Cast-in-Place Concrete Paving Schedule indicated herein this Section for requirements.

2. General: Penetrating Concrete Sealer shall be an invisible, water-based penetrating Sealer, used to protect exterior cast-in-place concrete pavement installations. Sealer shall be a clear, non-flammable, UV-stabilized, non-yellowing solution which cures to reduce staining, soiling, discoloration, efflorescence, and acts as a dense, insoluble, invisible water-repellant coating, formulated to impart water repellence and dirt reduction to concrete surfaces with no change in the surface appearance. Sealer shall react with carbon dioxide, and atmospheric moisture to form a penetrating water, dirt and mildew repellent barrier within 24 hours. Moisture absorption rate shall be low to reduce visible surface changes for up to ten (10) years. As recommended for ACI 302 Class 1 through 4 concrete floors.

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3. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Sinak Sealer S-102, Sinak Corporation.
b. Natural Look Penetrating Sealer, Glaze 'N Seal.
c. Cementone, L.M. Scofield Company.
d. Sure Klean Weather Seal SL100, Prosoco Inc.
e. Sealhard, L&M Construction Chemicals.
f. Triangle Coatings, Inc.
g. Thoroclear® Water-Based Sealer, Thoro/ChemRex, Inc.
h. HydraSeal, Endur-O-Seal.
i. or equal, as approved by the Landscape Architect.

PART 3 - EXECUTION

3.1 EXAMINATION
A. Proof-roll prepared sub-base surface for foundations to check for unstable areas and verify need for additional compaction. Verify that sub-grade preparation for concrete paving has been completed including base course prior to commencement of Work.

B. Surface Drainage:

1. Report in writing conflicts discovered on the site or prior Work done by others, which would prevent positive drainage.

2. Do not permit finished paving surfaces to vary more than 1/4 in. measured with a 10 ft. metal straightedge, except at grade changes.

3. No "birdbaths" or other surface irregularities shall be permitted. Properly correct irregularities.

3.2 PREPARATION
A. Templates: Use templates for anchor plates, bolts, inserts and/or other items embedded in concrete. Accurately secure so that they will not be displaced during placing of concrete.

B. Piping and Conduit: Do not embed piping, other than electrical conduit, in structural concrete.

Locate conduit to maintain strength of structures at maximum. Verify size, length and location of electrical conduit.

C. Aggregate Base Course: Compact base course to thicknesses as shown on Contract Drawings or as indicated per the Geotechnical Report, to the relative compaction density as required per the Geotechnical Report. Aggregate Base Course shall be graded to the lines and levels indicated; no ruts or depressions shall be allowed.

D. Gravel Fill or Sand Beds: Re-compact disturbed gravel fill or sand beds and bring to correct elevation.

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3.3 FORMWORK
A. Design, construct, erect, shore, brace, and maintain Formwork according to ACI 347 Guide to Formwork for Concret
B. Formwork shall be consistent with the orientation and pattern indicated on the Contract Drawings. Set, brace, and secure edge forms, bulkheads, and intermediate screed guides to required lines, grades, and elevations. Install Formwork to allow continuous progress of Work and so that Formwork can remain in place at least twenty-four (24)-hours after concrete placement.

C. Coordinate locations of drainage piping requirements, irrigation piping stub-outs, electrical conduits, or other items scheduled to be embedded into cast concrete.

D. Check completed Formwork and screeds for grade and alignment to following tolerances:

1. Top of Forms: Not more than 1/8 inch in ten- (10) feet.

2. Vertical Face on Longitudinal Axis: Not more than 1/4 inch in ten-(10) feet.

E. Coat Formwork with Form Release Agent, as required, to ensure Formwork separates from cast concrete without damage to concrete.

1. Formwork surfaces shall be clean, dry, and free from contaminants (dirt, dust, rust, buildup, and existing form agents) prior to each use of Formwork

2. Prior to each use, Formwork that comes into direct contact with concrete shall be coated with Form Release Agent in accordance with the M

3. Apply Form Release Agent in a uniform and even manner by low pressure spray, roller, or clean cloth, in acco

4. Prior to coating new Formwork, apply one (1) or two (2) heavy coats to edges for waterproofing protection.

5. Excess Form Release Agent or dense form surfaces should be removed with a clean cloth.

6. Do not apply Form Release Agent to reinforcing steel.

F. Screeds:

1. - centers between. Set to provide at grades per Contract Drawings. Check with an instrument level, transit, or laser during placing operations to maintain desired grades.

3.4 STEEL REINFORCEMENT
A. General: Comply with CRSI's "Manual of Standard Practice" for fabricating reinforcement and with recommendations in CRSI's "Placing Reinforcing Bars" for placing and supporting reinforcement.

B. Clean Reinforcement of loose rust and mill scale, earth, or other bond-reducing materials.

C. Arrange, space, and securely Tie Bars and Bar Supports to firmly hold and support the Steel Reinforcement in position during concrete placement and to prevent displacement before or during casting. Maintain a m

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D. Install Steel Reinforcement Bars in sizes as indicated on the Contract Drawings, in lengths as long as practicable. Lap adjoining Bars at a minimum of fifty (50) bar diameters. Lace splices accordingly with Tie Wire. Offset laps of adjoining widths to prevent continuous laps in either direction. Erect and maintain Reinforcement Bars on chairs, secured firmly in position, in the middle of the concrete during casting operations. Do not extend Reinforcement Bars through expansion joints.

E. Install Construction Joint Dowel Bars & Sleeves per the Reinforcing dowels, or sleeves for the reinforcing dowels, shall be secured in place prior to placing concrete. Align dowels in straight, even alignments in the middle of the concrete profile during casting operations. Dowels and sleeves shall not be pressed into the concrete during casting and after the concrete has been placed.

3.5 CONCRETE PLACEMENT
A. Preparation: Remove all free water from forms before concrete is deposited. Remove hardened concrete, debris, and foreign materials from interior surfaces of forms, exposed reinforcing, and from surfaces of mixing and conveying equipment.

B. Sub-Base: Sub-Base shall be free of ruts, holes, ridges, etc. Smooth and compact sub-base to an even plane.

C. Wetting: Wet wood forms sufficiently to tighten up cracks. Wet other materials sufficiently to reduce absorption and to help maintain concrete workability. Dampen earth sub-grade twentyfour (24) hours before placing concrete, but do not muddy. Re-roll where necessary for smoothness, and remove loose material from compacted sub-base surface prior to placing concrete.

D. Inspection: Before placing concrete, inspect and complete formwork installation, reinforcement steel, dowels/sleeves, and items to be embedded or cast in. Notify other trades to permit installation of their Work.

1. Reinforcement and Forms shall be secured firmly in position such that they will not be displaced during the placement of concrete.

2. Do not place concrete around manholes or other structures until they are at the required finish elevation and alignment.

E. Comply with requirements and with recommendations in ACI 304R for measuring, mixing, transporting, and placing concrete.

F. Deposit and spread concrete in a continuous operation between transverse joints. Do not push or drag concrete into place or use vibrators to move concrete into place.

G. Consolidate concrete by mechanical vibrating equipment supplemented by hand-spading, rodding, or tamping. Use equipment and procedures to consolidate concrete according to recommendations in ACI 309R.

1. Consolidate concrete along face of forms and adjacent to transverse joints with an internal vibrator. Keep vibrator away from joint assemblies, reinforcement, or side forms. Use only square-faced shovels for hand-spreading and consolidation. Consolidate with care to prevent dislocating reinforcement, dowels, and joint devices.

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H. Screed pavement surfaces with a straightedge and strike off. Commence initial floating using bull floats or darbies to form an open textured and uniform surface plane before excess moisture or bleed water appears on the surface. Do not further disturb concrete surfaces before beginning finishing operations or spreading dry-shake surface treatments I. When adjoining pavement lanes are placed in separate pours, do not operate equipment on concrete until pavement has attained eighty-five-percent (85%) of its fully hydrated compressive strength.

J. Cold-Weather Placement: Comply with ACI 306.1, and as follows. Protect concrete work from physical damage or reduced strength that could be caused by frost, freezing actions, or low temperatures.

1. When air temperature has fallen to or is expected to fall below 40 deg. F. (4.4 deg. C.), uniformly heat water and aggregates before mixing to obtain a concrete mixture temperature of not less than 50 deg. F. (10 deg. C.) and not more than 80 deg. F. (27 deg. C.) at point of placement.

2. Do not use calcium chloride, salt, or other materials containing anti-freeze agents or chemical accelerators, unless otherwise specified and approved in mix designs.

K. Hot-Weather Placement: Place concrete according to recommendations in ACI 305R and as follows when hot-weather conditions exist:

1. Cool ingredients before mixing to maintain concrete temperature at time of placement below 90 deg. F. (32 deg. C.). Chilled mixing water or chopped ice may be used to control temperature, provided water equivalent of ice is calculated to total amount of mixing water. Using liquid nitrogen to cool concrete is Contractor's option.

2. Cover reinforcement steel with water-soaked burlap so steel temperature will not exceed ambient air temperature immediately before embedding in concrete.

3. Fog-spray forms, reinforcement steel, and sub-grade just before placing concrete. Keep sub-grade moisture uniform without standing water, soft spots, or dry areas.

3.6 JOINTS
A. General: Refer to ACI 302 for work under
this Article. Construct construction, isolation, expansion, and contraction joints and tool edgings true to line with faces perpendicular to surface plane of concrete. Construct transverse joints at right angles to centerline, unless otherwise indicated.

1. When joining existing paving, place transverse joints to align with previously placed joints, unless otherwise indicated.

B. Construction Joints: Set construction joints at side and end terminations of paving and at locations where paving operations are stopped for more than one-half (1/2) hour, unless paving terminates at isolation joints.

1. Continue reinforcement across construction joints, unless otherwise indicated. Do not continue reinforcement through sides of pavement strips, unless otherwise indicated on the Contract Drawings.

2. Provide tie bars at sides of paving strips where indicated.

3. Use a bonding agent at locations where fresh concrete is placed against hardened or partially hardened concrete surfaces.

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C. Expansion Joints: Form expansion joints of preformed joint-filler strips abutting concrete curbs, catch basins, manholes, inlets, structures, walks, buildings, foundations, walls, other fixed objects, and in other locations as indicated on the Contract Drawings. Provide Expansion Joints at full depth of concrete paving where paving meets the vertical faces of buildings, structures, foundations, walls, etc.

1. Locate expansion joints at maximum intervals of twenty (20) feet, unless otherwise indicated on the Contract Drawings.

2. Extend joint fillers full width and depth of joint.

3. Provide Construction Joint Dowel Bars at the spacing distances indicated in the Contract Drawings.

4. Terminate Joint Filler less than 1/2 inch or more than onesurface if joint sealant is indicated.

5. Place top of Joint Filler flush with finished concrete surface if joint sealant is not indicated.

6. Furnish joint fillers in one (1)-piece lengths. Where more than one (1) length is required, lace or clip joint-filler sections together.

7. Protect top edge of joint filler during concrete placement with metal, plastic, or other temporary preformed cap. Remove protective cap after concrete has been placed on both sides of joint.

D. Contraction Joints and Isolation Joints: Form weakened-plane contraction joints and isolation joints, sectioning concrete into areas as indicated on the Construction Drawings, or at spacing intervals as recommended by the PCA.

1. General Methodology: Contraction Joints shall be placed in Concrete Paving to minimize the occurance of random cracking on the surface due to drying shrinkage or stress loading and to reduce the width of concrete cracks should they occur. When not indicated on the Contract Drawings, Contraction Joints shall be placed at 24x the thickness of the concrete paving.

2. Tooled (Grooved) Contraction Joints:
a. Form Tooled (Grooved) Joints in fresh concrete after initial floating using a jointer to cut the above the groove so that a smooth, uniform impression is obtained.

Strike joints before and after floating and troweling.
b. Perform in a continuous operation to avoid misalignment of joints. Use snap-lines and forms, as required, to achieve consistent lines. Re-form crooked or misaligned joints at no cost to Owner.
c. Tooled Radius of Joint Tool
1) .
d. Depth: Construct depth equal to a minimum of one-fourth (1/4) of the concrete slab thickness.

3. Saw-Cut Contraction Joints:
a. Construct Saw-Cut Contraction Joints with a circular power saw, equipped with a new, shatterproof abrasive or diamond-tipped blade. Cut 3/16-inch-wide joints (maximum width of saw-blade) into concrete surface. Cutting action shall not tear, abrade, spall, shatter, or otherwise damage the surface. b. Saw-cut concrete surface when successful jointing results can be achieved and prior to uncontrolled random contraction cracking of concrete occurs. 1) Early-entry Sawcuts: When used, provide sawcuts into fresh to 1-
c. Perform saw-cut joints cleanly and smoothly, to a constant and equal depth, in a continuous consistent line, with no over-cutting.

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d. Depth:
1) Contraction Joints: Construct depth equal to a minimum of one-fourth (1/4) of the concrete slab thickness.
2) Isolation Joints: Construct depth equal to the full depth of the concrete thickness.
e. Perform in as continuous an operation as possible, to avoid misalignment of joints.

Use chalk lines, forms, or templates as required, to achieve consistent lines) f. Use a hand grinder with a 4-inch diamond blade to saw-cut up to vertical edges such as walls, steps, curbs and columns. Do not over-cut into vertical surfaces or adjacent concrete surfaces.

E. Edging: Tool edges of pavements, gutters, headers, curbs, joints in concrete, and other locations, as required, after initial floating, with an edging tool to the following radius. Repeat tooling of edges after applying surface finishes. Eliminate tool marks on concrete surfaces.

1. Radius:

3.7 CONCRETE FINISHES
A. General:

1. - the
requirements outlined in CBC, Section 1124B.1, and ADAAG 4.5.1. a. The minimum coefficient of friction shall meet or exceed 0.8 on exterior and 0.6 on interior surfaces.
b. Pavement surfaces shall have the following finish on all surfaces less than six percent (6%) slope:
1) Medium Broom Textured Finish, or a textured finish as specified, which is equivalent to the finished texture of a Medium Broom Textured Finish for slip resistance.
c. Pavement surfaces shall have the following finish on all surfaces greater than six percent (6%) slope:
1) Heavy Broom Textured Finish, or a textured finish as specified, which is equivalent to the finished texture of a Heavy Broom Textured Finish for slip resistance.
d. Color(s) and finish(es) specified herein shall match referee samples and fieldconstructed mock-up samples as approved by the Landscape Architect. e. Wetting of concrete surfaces during screeding, initial floating, or finishing operations is strictly prohibited.

B. Broom-Textured Finish: Match Referee Sample, as acquired by the Landscape Architect, and the approved Field Constructed Mock-up, to compare for color, texture, finish, and other characteristics relating to aesthetic effects.

1. Applications: Refer to the Cast-in-Place Concrete Paving Schedule indicated herein this Section for requirements. Provide in areas as indicated on Contract Drawings.

2. Texture:
a. Fine-to-Medium-Textured Broom Finish: Provide a fine-to-medium texture finish by striating the freshly-cast float-finished concrete surface with a soft bristle broom, perpendicular to line of traffic, to provide a uniform, consistent, fine-line texture.

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3. Provide contraction jointing and edging, as required, in the locations indicated in the Contract Drawings, and of the type(s) indicated herein this Section. Early-entry jointing of concrete may be required to prevent premature cracking of finished surfaces.

4. After concrete is fully hydrated (approx. 30-days), seal broom texture finished concrete surface with two (2) coats of Sealer as specified herein this Section, per the M
a. Refer to the Cast-in-Place Concrete Paving Schedule indicated herein this Section for Sealer requirements.

3.8 CONCRETE PROTECTION AND CURING
A. General: Protect freshly placed concrete from premature drying and excessive cold or hot temperatures. Comply with ACI 306.1 for cold-weather protection and follow recommendations in ACI 305R for hot-weather protection during curing.

B. Evaporation Retarder: Apply Evaporation Retarder to concrete surfaces if hot, dry, or windy conditions cause moisture loss approaching 0.2 lb/sq. ft. x h before and during finishing operations. Apply according to manufacturer's written instructions after placing, screeding, and bull floating or darbying concrete, but before float-finishing.

C. Begin curing after finishing concrete, but not before free water has disappeared from concrete surface.

D. Curing Methods: Cure concrete by moisture curing, moisture-retaining-cover curing, curing compound, or a combination of these, as follows:

1. Moisture Curing: Keep surfaces continuously moist for not less than seven (7) days with the following materials:
a. Water.
b. Continuous water-fog spray.
c. Absorptive cover, water saturated, and kept continuously wet. Cover concrete surfaces and edges with 12-inch lap over adjacent absorptive covers.

2. Moisture-Retaining-Cover Curing: Cover concrete surfaces with Moisture-Retaining cover for curing concrete, placed in widest practicable width, with sides and ends lapped at least twelve inches and sealed by waterproof tape or adhesive. Immediately repair any holes or tears during curing period using cover material and waterproof tape.

3. Curing Compound: Apply uniformly in continuous operation by power spray or roller according to Manufacturer's written instructions. Re-coat areas subjected to heavy rainfall within three (3) hours after initial application. Maintain continuity of coating and repair damage during curing period.

3.9 INSTALLATION OF JOINT SEALANTS
A. Provide a Joint Sealant that is compatible with the substrate material(s) to which it is being applied. Do not use a Joint Sealant that has exceeded shelf life or has jelled and can not be discharged in a continuous flow from the application tool.

B. Ambient Temperature Criteria: The ambient temperature shall be within the limits of 40d. F. and 90d. F. when the Joint Sealant is being applied.

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C. Sealant Installation Standard: Comply with recommendations of ASTM C1193 for use of Joint Sealants as applicable to materials, applications and conditions indicated.

D. Surface Preparation of Joints:

1. Remove foreign material from joint substrates which could interfere with adhesion of Joint Sealant, including dust, surface dirt, dirt, moisture, water repellents, grease, oil, wax, lacquer, paint, waterproofing, or other foreign matter that would tend to destroy or impair adhesion.

2. Remove oil and grease with solvent. Surfaces must be wiped dry with clean cloths.

3. Clean porous surfaces, by brushing, grinding, blast cleaning, mechanical abrading, or acid washing to produce a clean, sound substrate. Remove loose particles remaining from cleaning operations by vacuuming or blowing out joints.

4. Where surfaces have been treated with curing compounds, oil, or other such materials, remove materials by sandblasting or wire brushing.

5. Clean non-porous surfaces by chemical cleaners or other means which are not harmful to substrates or leave residues capable of interfering with adhesion of Joint Sealants.

E. Sealant Preparation: Do not add liquids, solvents, or powders to the Joint Sealant material (for single-component materials). Where specified, mix multi-component elastomeric Joint Sealants in accordance with manufacturer's instructions.

F. Primer: Immediately prior to application of the Joint Sealant, clean out loose particles from joints. Where recommended by the sealant manufacturer, apply Primer to joints in accordance with sealant manufacturer's instructions. Do not apply Primer to exposed finish surfaces. Do not allow spillage or migration of Primer onto adjoining surfaces.

G. Installation of Sealant Backings: Install sealant backings to comply with the following requirements:

1. Install Joint Fillers to provide sealant support for optimum performance cross-sectional shapes and depths.
a. Do not leave gaps between ends of Joint Fillers.
b. Do not stretch, twist, puncture or tear Joint Fillers. c. Remove absorbent Joint Fillers which have become wet prior to sealant application and replace with dry material.

2. Install Bond Breaker to the back or bottom of the joint cavity (between sealants and joint-fillers, compression seals or back of joints where required), as recommended by the -
adhesion of the Joint Sealant to the back of the joint. Carefully apply the Bond Breaker to avoid contamination of adjoining surfaces or breaking bond with surfaces other than those covered by the Bond Breaker.

H. Installation of Joint Sealants:

1. Install Joint Sealant after concrete substrate material has been cast and allowed to cure.

Remove protective cap from preformed Joint Filler. Remove any excess Joint Filler material that will inhibit an adequate depth and bond of the Joint Sealant material.

2. Place masking tape where required along the joint cavity to prevent contact of the Joint Sealant with adjoining surfaces. Remove masking tape within ten (10) minutes after joint has been filled and tooled.

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3. Apply the Joint Sealant in accordance with the manufacturer's printed instructions with an application tool having a nozzle that fits the width of the joint cavity. Install Joint Sealant by proven techniques to contact and solidly full wet joint substrates, completely filling the recesses provided for each joint configuration, providing uniform, optimum performance cross-sectional shapes and depths. Do not allow spillage or migration of Joint Sealant onto adjoining surfaces.

I. Tooling of Non-Sag Joint Sealants: Tool Non-Sag Joint Sealants to form smooth, uniform beads of configuration indicated, free of wrinkles, streaks, gouges, boils, air holes, etc. and to ensure contact and adhesion of the Joint Sealant with the sides of the joint. Remove excess Joint Sealants from surfaces adjacent to joint. Do not use tooling agents which discolor Joint Sealants or adjacent surfaces or are not approved by Sealant Manufacturer.

J. Sanding of Joint Sealant: Lightly apply dry sand to cover freshly-poured elastic Joint Sealant material. When Joint Sealant has hardened, remove excess sand that has not bonded to Joint Sealant.

K. Protection and Curing:

1. Protect installed Joint Sealants during and after curing period from contact with contaminating substances or from damage.

2. Cut out and remove damaged or deteriorated Joint Sealers and reseal joints with matching new materials.

3. Clean off excess Joint Sealants or sealant smears adjacent to joints as Work progresses by methods and with cleaning materials approved by the Sealant Manufacturer.

3.10 APPLICATION OF CONCRETE SEALANTS
A. Penetrating Concrete Sealer:

1. After cast-in-place concrete is fully hydrated (approx. 30-days), seal concrete paving surfaces with two (2) coats of approved Penetrating Concrete Sealer. Apply in appearance and not mottled.

3.11 PAVEMENT TOLERANCES
A. Comply with tolerances of ACI 117, and as follows:

1. Elevation: 1/4 inch.

2. Thickness: Plus 3/8 inch, minus 1/4 inch.

3. Surface: Gap below 10-foot-long, unleveled straightedge not to exceed 1/4 inch.

Variation from the Level or from the Grades shown, per Civil Engineer Drawings:
a. In pavements:
1) In any ten- 1/4 inch.
2) In twenty-feet maximum 3/8 inch.
3) In forty-feet 3/4 inch.

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b. Variation in Radii:
1) In radii of less than ten-feet :
a) In any five- 1/8 inch.
b) In any ten- 1/4 inch.
2) In radii of twenty feet :
a) In any ten- 1/4 inch.
b) In any twenty-feet 3/8 inch.
3) In radii of thirty- or more:
a) In any twenty- 1/2 inch.
b) In any thirty- 1 inch.

4. Lateral Alignment and Spacing of Tie Bars and Dowels: 1 inch.

5. Vertical Alignment of Tie Bars and Dowels: 1/4 inch.

6. Alignment of Tie-Bar End Relative to Line Perpendicular to Paving Edge: 1/2 inch.

7. Alignment of Dowel-Bar End Relative to Line Perpendicular to Paving Edge: Length of dowel 1/4 inch per 12 inches.

8. 9. Contraction Joint Depth: Plus 1/4 inch, no minus.

10. Joint Width: Plus 1/8 inch, no minus.

3.12 FIELD QUALITY CONTROL
A. Testing Agency:

1. Engage a qualified independent testing and inspection agency to sample materials, perform tests, and submit test reports during concrete placement according to requirements specified in this Section.

B. Testing Services: Testing shall be performed according to the following requirements:

1. Sampling Fresh Concrete: Representative samples of fresh concrete shall be obtained according to ASTM C172, except modified for slump to comply with ASTM C94.

2. Slump: Per ASTM C143; one (1) test at point of placement for each compressivestrength test, but not less than one (1) test for each day's pour of each type of concrete.

Additional tests will be required when concrete consistency changes.

3. Air Content: Per ASTM C231, pressure method; one (1) test for each compressivestrength test, but not less than one (1) test for each day's pour of each type of airentrained concrete.

4. Concrete Temperature: Per ASTM C1064; one (1) test hourly when air temperature is 40 deg F. and below and when 80 deg. F. and above, and one (1) test for each set of compressive-strength specimens.

5. Compression Test Specimens: Per ASTM C31; one (1) set of four (4) standard cylinders for each compressive-strength test, unless otherwise indicated. Cylinders shall be molded and stored for laboratory-cured test specimens unless field-cured test specimens are required.

7. When frequency of testing will provide fewer than five (5) compressive-strength tests for a given class of concrete, testing shall be conducted from at least five (5) randomly selected batches or from each batch if fewer than five (5) are used.

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8. When total quantity of a given class of concrete is less than 50 cu. yd., the Landscape Architect may waive compressive-strength testing if adequate evidence of satisfactory strength is provided.

9. When strength of field-cured cylinders is less than eighty-five-percent (85%) of companion laboratory-cured cylinders, current operations shall be evaluated and corrective procedures shall be provided for protecting and curing in-place concrete.

10. Strength level of concrete will be considered satisfactory if averages of sets of three (3) consecutive compressive-strength test results equal or exceed specified compressive strength and no individual compressive-strength test result falls below specified compressive strength by more than 500 PSI.

C. Test results shall be reported in writing to the Owner, concrete manufacturer, and Contractor within 24-hours of testing. Reports of compressive-strength tests shall contain Project identification name and number, date of concrete placement, name of concrete testing agency, concrete type and class, location of concrete batch in pavement, design compressive strength at 28-days, concrete mix proportions and materials, compressive breaking strength, and type of break for both 7- and 28-day tests.

D. Nondestructive Testing: Impact hammer, sonoscope, or other nondestructive device may be permitted by the Owner, but will not be used as the sole basis for approval or rejection.

E. Additional Tests: Testing Agency shall make additional tests of the concrete when test results indicate slump, air entrainment, concrete strengths, or other requirements have not been met, as directed by the Owner. Testing Agency may conduct tests to determine adequacy of concrete by cored cylinders complying with ASTM C42, or by other methods, as directed.

3.13 REPAIRS AND PROTECTION
A. Remove in its entirety (from joint to joint) and replace concrete pavement that is broken, cracked, damaged, or defective, or concrete which does not meet requirements of this Section.

B. Drill test cores where directed by the Landscape Architect, when necessary, to determine magnitude of cracks or defective areas. Fill drilled core holes in satisfactory pavement areas with Portland cement concrete bonded to pavement with epoxy adhesive.

C. Protect concrete from damage. Exclude traffic from pavement for at least fourteen (14) days after placement. When construction traffic is permitted, maintain pavement as clean as possible by removing surface stains and spillage of materials as they occur.

D. Maintain concrete pavement free of stains, discoloration, dirt, and other foreign material.

Sweep concrete pavement not more than two (2) days before date scheduled for Substantial Completion inspections.

END OF SECTION

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SECTION 321323 SITE CONCRETE
PART 1 - GENERAL

1.1 SUMMARY
A. This Section includes materials, labor, apparatus, tools, equipment, temporary construction, transportation, and services necessary for and incidental to performing the proper completion of Work for Reinforced Cast-in-Place Site Concrete, as shown in the Contract Drawings, and as specified herein this Section.

B. Work under this Section consists of, but is not necessarily limited to, furnishing and installing the following:

1. Cast-in-Place Site Concrete for miscellaneous footings or sub-grade foundations.

2. Installation of anchor bolts, hangers, anchors, plates, inserts, and miscellaneous metal or other materials embedded in Cast-in-Place Site Concrete and which are furnished by other trades or Sections.

3. Concrete Formwork.

4. Jointing (Expansion Joints, Contraction Joints, Isolation Joints, Keyway/Construction Joints and/or Architectural Score Joints).

5. Concrete Curing.

6. Concrete Joint Sealants.

7. Reinforcement, Tie Wire, and Bar Supports.

8. Steel Dowels and Sleeves.

9. Compacted Sub-Surface Materials.

10. Site Concrete Finishes.

C. Related Sections: The following Sections contain requirements that relate to Work in this Section:

1. Section 042200 Concrete Unit Masonry.

2. Section 321313 Concrete Paving.

1.2 DEFINITIONS AND APPLICABLE STANDARDS
A. References:

1. AASHTO American Association of State Highway and Transportation Officials.

2. ACI American Concrete Institute.

3. ADAAG American with Disabilities Act Accessibility Guidelines.

4. ANSI American National Standards Institute.

5. ASTM American Society for Testing and Materials.

6. CBC California Building Code, Title 24 Disabled Access Regulations.

7. CRSI Concrete Reinforcing Steel Institute.

8. NRMCA National Ready Mix Concrete Association.

9. PCA Portland Cement Association.

10. SSPWC Standard Specifications for Public Works Construction.

11. SWRI Sealant, Waterproofing & Restoration Institute.

12. IBC International Building Code.

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B. Definitions:

2. Percent Compaction: Per ASTM D1557, percentage of the maximum in-place dry density of the same material, as determined by Geotechnical Engineer.

C. Standards of Construction:

1. ACI 117 Standard Specifications for Tolerances for Concrete Construction and Materials.

2. ACI 214 Recommended Practice for Evaluation of Strength Tests Results of Concrete.

3. ACI 301 Details and Detailing of Concrete Reinforcement.

4. ACI 303.1 Standard Specification for Cast-in-Place Architectural Concrete.

5. ACI 304 Recommended Practices for Measuring, Mixing, Transporting, and Placing of Concrete.

6. ACI 305 Recommended Practices for Cold Weather Concreting.

7. ACI 306 Recommended Practices for Hot Weather Concreting.

8. ACI 308 Standard Practice for Curing Concrete.

9. ACI 347 Recommended Practice for Concrete Formwork.

10. ASTM A185 Standard Specification for Steel Welded Wire Reinforcement, Plain, for Concrete.

11. ASTM A615 Specification for Deformed and Plain Billet-Steel Bars for Concrete Reinforcement.

12. ASTM C33 Standard Specification for Concrete Aggregates.

13. ASTM C39 Test Method for Compressive Strength of Cylindrical Concrete Specimens.

14. ASTM C94 Standard Specification for Ready-Mix Concrete.

15. ASTM C136 Method for Sieve Analysis of Fine and Coarse Aggregate.

16. ASTM C143 Test Method for Slump of Portland Concrete Cement.

17. ASTM C150 Standard Specification for Portland Cement.

18. ASTM C171 Standard Specification for Sheet Materials for Curing Concrete

19. ASTM C260 Standard Specification for Air-Entraining Admixtures for Concrete.

20. ASTM C309 Liquid Membrane-Forming Compounds for Curing Concrete.

21. ASTM C494 Standard Specification for Chemical Admixtures for Concrete.

22. ASTM C920 Standard Specification for Elastomeric Joint Sealants.

23. ASTM C979 Standard Specification for Pigments for Integrally Colored Concrete.

24. ASTM C1193 Standard Guide for Use of Joint Sealants.

25. ASTM C1315 Standard Specification for Liquid Membrane-Forming Compounds Having Special Properties for Curing and Sealing Concrete.

26. ASTM C1602 Standard Specification for Mixing Water Used in the Production of Hydraulic Cement Concrete.

27. ASTM D1751 Standard Specification for Preformed Expansion Joint Fillers for Concrete Paving and Structural Construction (Non-Extruding and Resilient Bituminous Types).

28. Certificate of Conformance
for Concrete Production Facilities
D. Measurements.

1. PSI: Measurement, in pounds per square foot.

2. CU/FT: Measurement, in cubic-foot.

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1.3 SUBMITTALS
A. General:

1. Collect information into a single Submittal for each element of construction and type of product or equipment identified under this Section for review.

Highlight catalog, product data, or brochures containing various products, sizes, and materials to show particular item submitted.

3. Submittal Format: As applicable, furnish Submittal as a single electronic digital PDF (Portable Document Format) file.

B. Digital Submittal Information:

1. Product/Material Data: Submit available product/material literature supplied by Provide manufacturing source (name, address, and telephone number), and distributor source (name, address, and telephone number) for each type of product/material:
a. Reinforcement and Forming Accessories.
b. Steel Dowels and Sleeves.
c. Cementitious Materials.
d. Integral Aggregates (Coarse and Fine).
e. Chemical Admixtures.
f. Jointing Materials and Systems, including Joint Sealants. g. Concrete Curing Materials.
h. Finishing Materials.
i. Site Concrete Surface Sealants.

2. Statement of Mix Design: Prepared by the batch plant servicing the Project, submit for each type or load delivered to Project. Include revised mix proportions when characteristics of materials, project conditions, weather, test results, or other circumstances warrant adjustments. Each Statement of Mix Design shall include following information:
a. Name, address, and telephone number of batch plant preparing Statement of Mix Design.
b. Date of Mix Design.
c. Project location.
d. Contractor requesting load delivery.
e. Mix Design Number.
f. Admixtures (as required).
g. Integral Color Admixtures (as required).
h. Gradations for sand and aggregate.
i. Material weights, specific gravity, and absolute volumes. j. Basis of testing, i.e. UBC 2605 D4 and CBC Title 24 2604 D4. k. Water/Cementitious Materials Ratio (W/CM Ratio).
l. Slump.
m. PSI Rating.

3. Material Test Reports: Signed and stamped laboratory test reports for evaluation of concrete materials and mix design tests.

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4. Material Certificates: Material certificates, in lieu of material laboratory test reports, when permitted by the Landscape Architect. Material certificates shall be signed by the Manufacturer and Contractor certifying that each material item complies with or exceeds requirements. Provide certification from admixture manufacturers that chloride content complies with requirements.

5. Scaled Shop Drawings: Submit Scaled Shop Drawings for form work, indicating fabrication and erection of forms for specific finished site concrete surfaces. Show form construction including jointing, special form joints or reveals, location and pattern of form tie placement, pour sequencing, dimensioned locations of all construction, control and expansion joints, and other items that affect exposed concrete visually. a. Review with the Landscape Architect for general architectural applications and features only. Designing form work for structural stability and efficiency shall be nsibility.

6. similar Site Concrete installations. Include lists of completed projects with project names and addresses, names and addresses of Architects/Landscape Architects, Artists and Owners, and other information specified.

7. Minutes of Pre-Installation Conference, distributed and approved in writing as to the content of the conference by concerned parties in attendance.

Provide Material Samples bound and individually wrapped in re-sealable labeled 1-gallon plastic bags (as applicable):

E. No Work under this Section shall proceed until all information indicated herein this Article have been reviewed, accepted, and approved by the Landscape Architect, in writing.

1.4 QUALITY ASSURANCE AND CONTROL
A. Installer Qualifications: Engage an experienced Installer who has completed in the last two (2) years at least three (3) concrete installations similar in material, design, and extent to that indicated for this Project, and whose work has resulted in construction with a record of successful in-service performance.

1. Requirement: Valid California C-8 (Concrete) Contractor License.

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B. Applicable Standards of Work:

2. Design and Control of Concrete Mixture, Thirteenth Edition, Portland Cement Association.

3. Manual of Standard Practice, Concrete Reinforcing Steel Institute (CRSI).

4. , Sealant, Waterproofing & Restoration Institute
(SWRI).

D. Concrete Manufacturer Qualifications: Manufacturer of ready-mixed concrete products complying with ASTM C94 requirements for production facilities and equipment.

1. Manufacturer shall be certified according to the National Ready Mix Concrete Association's Plant Certification Program.

F. Concrete Testing Service: Engage a qualified independent testing agency to perform material evaluation tests and to design concrete mixes.

G. Lines and Levels: To be established by a licensed Surveyor or registered Civil Engineer.

H. Permits, Fees, Bonds, and Inspections: Contractor shall arrange and pay for permits, fees, bonds, and inspections necessary to perform and complete Work under this Section.

1. Notify participants in writing at least five (5) working days prior to Conference.

1.5 DELIVERY, STORAGE, AND HANDLING
A. Deliver materials in a timely manner to ensure un-interrupted progress of the Work.

B. Store materials in a dry and protected location. Protect reinforcing steel and dowels from rusting, deformation, staining, and moisture damage.

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C. Store materials by methods that prevent damage and permit ready access for inspection and identification. Package cement delivered to the Project Site shall be in strong paper or jute bags with brand name and manufacturer's name stamped thereon. Store cement under cover.

Remove packaged cement immediately from the Project Site should it become wet or show any signs of caking or deterioration.

B. Do not place Site Concrete during rain or adverse weather conditions without means to prevent damage. Conform to requirements specified hereinafter whenever concrete placement is required during cold or hot weather.

C. Dust Nuisance and Control: Contractor shall assume full responsibility for alleviation or prevention of dust as a result of Work under this Section. Maintain control of Site Concrete dust during duration of Contract. Do not permit adjacent planting areas to be contaminated.

D. Grades and Levels: Establish and maintain required levels and grade elevations. Review installation procedures and coordinate Work in this Section with other Work affected.

1. Lines and Levels to be established by a licensed Surveyor or registered Civil Engineer.

E. Keep Work area clean, and in a safe and workmanlike condition so that rubbish, waste, and debris does not interfere with Work of other trades.

1.7 COORDINATION, SCHEDULING, AND OBSERVATIONS
A. Sequence and Scheduling: Notify contractors performing Work related to installation of Work under this Section in ample time so as to allow sufficient time for them to perform their portion of Work and that progress of Work is not delayed. Verify conditions at the Project Site for Work that affects installation under this Section. Coordinate items of other trades to be furnished and set in place, such as:

1. Accessories embedded in Site Concrete, and for the provision of holes, openings, etc., necessary to the execution of the Work of the trades.

2. Irrigation Pipe Sleeves through Walls. Refer to Section 328400 Irrigation Systems.

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D. Excavation: When conditions detrimental to adequate installation operations are encountered, such as rubble fill, adverse drainage conditions, or obstructions, cease operations and notify Landscape Architect for further direction.

E. Environmental Conditions: Perform installation operations only when weather and soil conditions are suitable in accordance with locally-accepted practices.

B. ndards
of quality. This implies no right to the Contractor to substitute other materials without prior written approval by the Landscape Architect for Work under this Section.

D. Contract Price: Substituted Materials under this Section shall not increase the Contract price.

PART 2 - PRODUCTS

1. Provide Forms that are full-depth, continuous, straight and free of distortions and defects, and level or sloping along exposed surfaces.

2. Provide Forms of sufficient strength and durability to hold concrete properly in place and prevent leakage of water from Forms.

3. Use flexible spring forms, laminated boards, or foam forms to form radius bends, as required.

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4. No wood-textured finish from Forms will be permitted on exposed Site Concrete surfaces unless specified as such.

5. Textured Form Facings: Refer to Contract Drawings or requirements indicated herein this Section, as required.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Atlas Bio-Guard 2000, Atlas Tech Products.
b. Bio Release Agent, Burke, Edoco.
c. Enviroform, Conspec, Dayton Superior Company.
d. Bio-Form, Leahy-Wolf Company.
e. Crete-Lease 20-VOC, Cresset Chemical Company.
f. Duogard II, W.R. Meadows, Inc.
g. FORMSHIELD WB, Tamms Industries.
h. Greenplus Form Release Agent ES, Greenland Corporation. i. Soy Form Release and Natural Form Oil, Natural Soy, LLC. j. SOYsolv Concrete Form Release Agent, SOYsolv.
k. Or equal, as approved by the Landscape Architect.

2.2 STEEL REINFORCEMENT
A. Welded Wire Reinforcement:

1. Plain (Smooth) Steel Welded Wire Reinforcement (to 65,000psi): Meet ASTM A185, fabricated from as-drawn steel wire into flat sheets. Rolls are not acceptable.

2. Deformed-Steel Welded Wire Reinforcement (to 70,000psi): Meet ASTM A497, flat sheet. Rolls are not acceptable.

B. Steel Reinforcement Bars:

1. Meet ASTM A615, Grade 60 deformed, clean and free of rust, dirt, grease or oils.

C. Steel Tie Wire:

1. 16-gauge minimum, black annealed, plain cold-drawn steel conforming to ASTM A82, clean, and free of rust, dirt, grease or oils.

D. Construction/Expansion Joint Dowel Bars & Slip Dowel Sleeves:

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a. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
1) Speed Dowel, Greenstreak.
2) Or equal (no known equal).

E. Epoxy-Coated Reinforcement

1. Epoxy Coated Steel Welded Wire Fabric: Meet ASTM A884, Class A, plain steel, fabricated from as-drawn steel wire into flat sheets. Rolls are not acceptable.

2. Epoxy-Coated Steel Reinforcement Bars: Meet ASTM A775, with ASTM A615, Grade 60, deformed bars.

3. Epoxy-Coated Steel Wire: Meet ASTM A884, Class A coated, plain steel.

4. Epoxy-Coated Steel Joint Dowel Bars: Meet ASTM A775, with ASTM A615, Grade 40, plain steel bars, free of rust, dirt, grease, and oils. Cut Bars true to length with ends square and free of burrs.

5. Epoxy Repair Coating: Liquid, two-part epoxy repair coating, compatible with epoxy coating on reinforcement.

F. Snap Ties: Snap-off type of fixed length, capable of leaving no ties within 1 1/2 in. of surface or causing fractures, spall, or other defects larger than one (1) in. diameter.

1. Steel Snap Ties.

2. Fiberglass Snap Ties.

G. Hook Bolts: Meet ASTM A307, Grade A internally and externally threaded. Design hook-bolt joint assembly to hold coupling against site concrete form and in position during concreting operations, and to permit removal without damage to concrete or hook bolt.

H. Supports for Reinforcement: Lightweight, strong, non-corrosive, durable, and impervious to water. Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcement bars, welded wire fabric, and dowels in place, as manufactured from 100% recycled-content plastic or engineered resins from recycled ABS plastic, polycarbonates, and fiberglass.

1. Cement Type: Type II.

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B. Normal-Weight Aggregates: Meet ASTM C33, Class 1N, and as follows:

1. Fine Aggregates: Meet ASTM C33, clean, hard, non-reactive, and durable sand. Do use sand coated with injurious amounts of silt, loam, clay or other deleterious matter. a. Grading Requirements:

Sieve Size Percent Passing
100%
No. 4 95-100%
No. 8 75-95%
No. 16 55-75%
No. 30 30-50%
No. 50 10-25%
No. 100 2-10%

2. Coarse Aggregates: Meet ASTM C33, hard, durable, non-reactive, un-coated, graded, cleaned, and screened crushed rock or gravel aggregate for regular weight concrete. Do not use crusher-run stone or bank-run gravel. Aggregate shall be from a single source and shall be like in visual appearance.
a. Grading: Gradation in accordance with SSPWC-Table 200-1.4(B). Do not use coarse aggregates that contain substances that cause spalling.

C. Water: Per ASTM C1602, from potable domestic source, free from deleterious materials such as oils, acids, and organic matter.

D. Pozzolans:

1. Fly Ash: Meet ASTM C618, Type C or F.

2. Ground Granulated Iron Blast-Furnace Slag: Meet ASTM C989, Grade 100 or 120.

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B. Air-Entraining Admixture: Meet ASTM C260.

2. Application Rate: Per selected
C. Water-Reducing Admixture: Meet ASTM C494, Type A.

2. D. Water-Reducing and Set Retarding Admixture: Meet ASTM C494, Type B and D.

2. A
E. Shrinkage-Reducing Admixture: Meet ASTM C157. Provide at dosage of 2% by weight of cement.

2. F. Damp-proofing Admixture: Hydrophobic, Meeting ASTM C836-81, fluid-V single component, bitumen-modified, moisture-curing polyurethane, added at time of batching.

2. st printed instructions.

2.5 CURING MATERIALS
A. Absorptive Cover: Provide one (1) of the following:

1. Burlap Cloth, made from jute or kenaf, weighing approximately 9 oz. per sq. yd., complying with AASHTO M182, Class 2.

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2. Curing Blanket: Single-use, non-woven synthetic (inorganic) fabric, specifically manufactured to provide a continuous supply of moisture for a gradual and controlled freshly-casted concrete curing environment.
a. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
1) HydraCure S16, PNA Construction Technologies, Inc.
2) UltraCure, McTech Group.
3) Or equal, as approved by the Landscape Architect.

B. Moisture-Retaining Cover: Provide one (1) of the following, as complying with ASTM C171.

1. Polyethylene Film (Clear or White Opaque).

C. Liquid Membrane-Forming Concrete Curing Compound: Material shall meet the maximum Volatile Organic Compound (VOC) content of 350 g/L for concrete curing compounds as required by the U.S. EPA Architectural Coatings Rule and shall be VOC-compliant for the State of California Regulation 8, Organic Compounds, Rule 3, Architectural Coatings.

1. Clear Solvent-Borne Liquid Membrane-Forming Curing Compound: Spray-applied, ready-to-use, meeting ASTM C309, Type I, Class B.
a. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
1) AH Curing Compound #2 DR, Anti-Hydro International, Inc. 2) Res-X Cure All Resin, Burke Group, LLC.
3) RX Cure; Conspec Marketing & Manufacturing Co., Inc. 4) Day-Chem Rez Cure, Dayton Superior Corporation.
5) Kurez DR, Euclid Chemical Co.
6) Nitocure S, Fosroc.
7) #64 Resin Cure, Lambert Corporation.
8) L&M Cure DR, L&M Construction Chemicals, Inc.
9) 3100-Clear, W. R. Meadows, Inc.
10) Seal N Kure FDR, Metalcrete Industries.
11) Rich Cure, Richmond Screw Anchor Co.
12) Resi-Chem C309, Symons Corporation.
13) Horncure 30, Tamms Industries Co., Div. of LaPorte Construction Chemicals N.A., Inc.
14) Uni Res 150, Unitex.
15) Certi-Vex RC, Vexcon Chemicals, Inc.
16) Or equal, as approved by the Landscape Architect.
b.

2. Clear Water-Borne Membrane-Forming Curing Compound: Spray-applied, ready-to-use, meeting ASTM C309, Type I, Class A.
a. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
1) AH Curing Compound #2 DR WB, Anti-Hydro International, Inc. 2) Spartan-Cote, Burke Group, LLC.
3) Safe-Cure Clear, ChemMasters.
4) W.B. Resin Cure, Conspec Marketing & Manufacturing Co., Inc. 5) Day Chem Rez Cure (J-11-W), Dayton Superior Corporation. 6) Cure & Seal 30 EF, Conspec, Dayton Superior Corporation. 7) Nitocure S, Fosroc.
8) Aqua Kure-Clear, Lambert Corporation.
9) L&M Cure R, L&M Construction Chemicals, Inc.

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10) 1100 Clear, W. R. Meadows, Inc.
11) Resin Cure E, Nox-Crete Products Group, Kinsman Corporation. 12) Rich Cure E, Richmond Screw Anchor Co.
13) Resi-Chem Clear Cure, Symons Corporation.
14) Horncure 100, Tamms Industries Co., Div. of LaPorte Construction Chemicals N.A., Inc.
15) Hydro Cure, Unitex.
16) Certi-Vex Enviocure, Vexcon Chemicals, Inc.
17) Clear-Seal 150, A.C. Horn.
18) Master Seal, Master Builders.
19) Kure-N-Seal, Sonneborn.
20) Or equal, as approved by the Landscape Architect.
b.

3. White Water-Borne Membrane-Forming Curing Compound: Spray-applied, ready-touse, meeting ASTM C309, Type II, Class B. a. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
1) AH Curing Compound #2 WB WP, Anti-Hydro International, Inc. 2) Aqua Resin Cure, Burke Group, LLC.
3) W.B. Resin Cure, Conspec Marketing & Manufacturing Co., Inc. 4) Thinfilm 450, Kaufman Products, Inc.
5) Aqua Kure-White, Lambert Corporation.
6) L&M Cure R-2, L&M Construction Chemicals, Inc.
7) 1200-White, W. R. Meadows, Inc.
8) White Pigmented Resin Cure E, Nox-Crete Products Group, Kinsman Corporation.
9) Rich Cure White E, Richmond Screw Anchor Co.
10) Resi-Chem High Cure, Symons Corporation.
11) Horncure 200-W, Tamms Industries Co., Div. of LaPorte Construction Chemicals N.A. Inc.
12) Hydro White 309, Unitex.
13) Or equal, as approved by the Landscape Architect.
b. Application Rate: Per s
D. Liquid Membrane-Forming Concrete Curing and Sealing Compound: Applied to fresh concrete immediately after the disappearance of the surface water sheen. Material shall meet the maximum Volatile Organic Compound (VOC) content of 350 g/L for concrete curing compounds as required by the U.S. EPA Architectural Coatings Rule and shall be VOCcompliant for the State of California Regulation 8, Organic Compounds, Rule 3, Architectural Coatings.

1. Spray-applied, ready-to-use, meeting ASTM C1315, Type II, Class A, with maximum water loss .40kg/m2 in 72 hours when applied @300ft2/gal.; minimum solids content of 25%.

E. Evaporation Retarder: Waterborne, spray-applied, ready-to-use, mono-molecular film-forming compound, formulated to be applied to fresh concrete surfaces, for temporary protection from rapid moisture loss. Material shall meet the maximum Volatile Organic Compound (VOC) content of 350 g/L for concrete curing compounds as required by the U.S. EPA Architectural Coatings Rule and shall be VOC-compliant for the State of California Regulation 8, Organic Compounds, Rule 3, Architectural Coatings.

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2. F. Surface Set-Retarder: Spray-applied, ready-to-use, water-based solution with color dye, nonstaining, non-corrosive, non-flammable, non-toxic, specifically formulated to retard the set of fresh concrete surfaces, temporarily delaying final hardening of concrete to a depth of 1/8 to 1/4 inch (to expose the surface aggregates). Material shall meet the maximum Volatile Organic Compound (VOC) content of 350 g/L for concrete curing compounds as required by the U.S.

EPA Architectural Coatings Rule and shall be VOC-compliant for the State of California Regulation 8, Organic Compounds, Rule 3, Architectural Coatings.

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G. Spray applied, film forming protective coating, for surfaces adjacent to Set-Retarded finish surfaces.

2.6 RELATED MATERIALS
A. Bonding Agent: ASTM C1059, Type II, non-redispersible, acrylic emulsion or styrene butadiene.

B. Epoxy Bonding Adhesive: ASTM C881, two-component epoxy resin, capable of humid curing and bonding to damp surfaces, of class and grade to suit requirements, and as follows:

1. Type II, non-load bearing, for bonding freshly mixed concrete to hardened concrete.

2. Types I and II, non-load bearing, for bonding hardened or freshly mixed concrete to hardened concrete.

3. Types IV and V, load bearing, for bonding hardened or freshly mixed concrete to hardened concrete.

C. Expansion Joint Materials:

1. Expansion Joint-Filler Strips:
a. Asphalt-Saturated Cellulosic Fiber, meeting ASTM D1751, with removable depth gauge cap. Expansion Joint-Filler Strip shall be versatile, resilient, flexible and non-extruding. When compressed to half of its original thickness, it shall recover to a minimum of 70% of its original thickness. 1) Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a) Sealtight Fibre with Snap Cap, WR Meadows.
b) Fiber Board, APS Supply.
c) Or equal, as approved by the Landscape Architect.
2) Thickness/Width: As indicated on the Contract Drawings. b. Clean selected Granulated Cork, bonded with a phenolic resin, meeting ASTM D1752, with
1) Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a) Sealtight Standard Cork, WR Meadows.
b) Standard Cork Expansion Joint Filler, APS Supply.
c) Or equal, as approved by the Landscape Architect.
2) Thickness/Width: As indicated on the Contract Drawings. c. Self-sealing, non-absorbent Asphalt, meeting ASTM D
the finished surface, a joint sealant is not required.
1) Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a) SealTight Asphalt, WR Meadows.
b) Or equal, as approved by the Landscape Architect.
2) Thickness/Width: As indicated on the Contract Drawings.

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4. Joint Sealant:
a. Vertical Applications: Meet ASTM C920, Type S, Grade P, Class 25, Use T, Low-VOC, cold-applied, elastomeric polyurethane Joint Sealant for exterior applications. Color to match adjacent color finish.
1) Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a) Sika Corporation.
b) Tremco, Inc.
c) Sonneborn.
d) Pecora Corporation.
e) or equal, as approved by the Landscape Architect.

2.7 CONCRETE MIXES AND PROPORTIONING
A. Proportion and mix of cement, aggregate, admixture and water to attain required plasticity and strength for each type of normal-
and the PCA "Design and Control of Concrete Mixtures."

1. Use transit mixer trucks equipped with automatic devices for recording number of revolution of drum.

B. Use a qualified independent testing agency for preparing and reporting proposed mix designs for the trial batch method, using approved materials to obtain specified minimum compressive strength.

1. -control testing agency as the independent testing
agency.

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D. Proportion Concrete Mixes to provide Concrete with the following properties:

1. Site Concrete:
a. Compressive Strength (at 28 Days): Minimum 3,000 PSI. b. Maximum Slump Limit: Five-inches (5 at point of discharge, with a 1/2-inch slump differential between successive batches. Obtain approval from the Landscape Architect if slump is outside these parameters. c. Maximum Water/Cementitious Materials Ratio: .50.
d. Cement Content: Minimum six (6)- sack mix (564 lbs. cement per cubic yard).

E. Cementitious Materials: Limit percentage, by weight, of cementitious materials (other than Portland Cement) in concrete as follows:

1. Fly Ash: Provide ten-percent (10%) maximum content.

F. Add Air-Entraining Admixture at the Manufacturer's prescribed rate to result in concrete at point of placement having an air content of 2.5 to 4.5 percent.

G. Coloring Agent: Add coloring agent to mix according to Manufacturer's written instructions.

H. Non-Chloride Accelerators: Do not use corrosive accelerators such as calcium chloride.

I. Concrete Delivery: Use of concrete loads exceeding ninety (90) minutes from time of batch plant must be approved by the Landscape Architect.

J. Ensure that the batch plant guarantees a single-source supply for cementitious materials and aggregates (coarse and fine) for the entire project.

2.8 CONCRETE MIXING
A. Ready-Mixed Concrete: Comply with requirements and with ASTM C94.

B. When air temperature is between 85 deg. F. (30 deg. C) and 90 deg F (32 deg. C), reduce mixing and delivery time from 1-1/2 hours to 75 minutes; when air temperature is above 90 deg F (32 deg C), reduce mixing and delivery time to 60 minutes.

2.9 SITE CONCRETE SEALANTS
A. Penetrating Concrete Sealer:

1. Applications: Refer to the Site Concrete Schedule indicated herein this Section for requirements.

2. General: Penetrating Concrete Sealer shall be an invisible, water-based penetrating Sealer, used to protect exterior cast-in-place site concrete installations. Sealer shall be a clear, non-flammable, UV-stabilized, non-yellowing solution which cures to reduce staining, soiling, discoloration, efflorescence, and acts as a invisible water-repellant coating, formulated to impart water repellence and dirt reduction to concrete surfaces with no change in the surface appearance. Sealer shall react with carbon dioxide, and atmospheric moisture to form a penetrating water, dirt and mildew repellent barrier within 24 hours. Moisture absorption rate shall be low to reduce visible surface changes for up to ten (10) years.

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3. Products & Manufacturers: Subject to compliance with requirements, provide products by one (1) of the following:
a. Sinak Sealer S-102, Sinak Corporation.
b. Natural Look Penetrating Sealer, Glaze 'N Seal.
c. Sure Klean Weather Seal SL100, Prosoco Inc.
d. Repello, LM Scofield.
e. Or equal, as approved by the Landscape Architect.

PART 3 - EXECUTION

3.1 EXAMINATION
A. Proof-roll prepared sub-base surface for foundations to check for unstable areas and verify need for additional compaction. Verify that sub-grade preparation for site concrete has been completed including base course prior to commencement of Work.

B. Surface Drainage:

1. Report in writing conflicts discovered on the site or prior Work done by others, which would prevent positive drainage.

2. Do not permit finished site concrete surfaces to vary more than 1/4 in. measured with a 10 ft. metal straightedge, except at grade changes. Properly correct irregularities.

3.2 PREPARATION
A. Templates: Use templates for anchor plates, bolts, inserts and/or other items embedded in concrete. Accurately secure so that they will not be displaced during placing of concrete.

B. Piping and Conduit: Do not embed piping, other than electrical conduit, in structural concrete.

Locate conduit to maintain strength of structures at maximum. Verify size, length and location of electrical conduit.

D. Gravel Fill or Sand Beds: Re-compact disturbed gravel fill or sand beds and bring to correct elevation.

3.3 FORMWORK
A. Design, construct, erect, shore, brace, and maintain Formwork according to ACI 347 Guide to Formwork for Concrete.

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B. Formwork shall be consistent with the orientation and pattern indicated on the Contract Drawings. Set, brace, and secure edge forms, bulkheads, and intermediate screed guides to required lines, grades, and elevations. Install Formwork to allow continuous progress of Work and so that Formwork can remain in place at least twenty-four (24)-hours after concrete placement.

C. Coordinate locations of drainage piping requirements, irrigation piping stub-outs, electrical conduits, or other items scheduled to be embedded into cast concrete.

D. Check completed Formwork and screeds for grade and alignment to following tolerances:

1. Top of Forms: Not more than 1/8 inch in ten- (10) feet.

2. Vertical Face on Longitudinal Axis: Not more than 1/4 inch in ten-(10) feet.

E. Coat Form Work with Form Release Agent, as required, to ensure Form Work separates from casted Site Concrete without damage to concrete .

1. Formwork surfaces shall be clean, dry, and free from contaminants (dirt, dust, rust, buildup, and existing form agents) prior to each use of Formwork

2. Prior to each use, Formwork that comes into direct contact with concrete shall be coated with Form Release Agent in accordance with the M

3. Apply Form Release Agent in a uniform and even manner by low pressure spray, roller, uctions.

4. Prior to coating new Formwork, apply one (1) or two (2) heavy coats to edges for waterproofing protection.

5. Excess Form Release Agent or dense form surfaces should be removed with a clean cloth.

6. Do not apply Form Release Agent to Reinforcement.

F. Screeds:

1. -0: centers between. Set to provide at grades per Contract Drawings. Check with an instrument level, transit, or laser during placing operations to maintain desired grades.

B. Clean Reinforcement of loose rust and mill scale, earth, or other bond-reducing materials.

D. Install Steel Reinforcement Bars in sizes as indicated on the Contract Drawings, in lengths as long as practicable. Lap adjoining Bars at a minimum of fifty (50) bar diameters. Lace splices accordingly with Tie Wire. Offset laps of adjoining widths to prevent continuous laps in either direction. Erect and maintain Reinforcement Bars on chairs, secured firmly in position, in the middle of the concrete during casting operations. Do not extend Reinforcement Bars through expansion joints.

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E. Install Welded Wire Reinforcement (where required) in sizes as indicated on the Contract Drawings, in continuous lengths as long as practicable. Lap adjoining pieces at least one-one half (1-1/2) courses of the full fabric mesh, and a minimum of six-inches ce splices with Tie Wire. Offset laps of adjoining widths to prevent continuous laps in either direction.

Erect and maintain Fabric on chairs, secured firmly in position, in the middle of the concrete during casting operations. Do not extend Welded Wire Fabric through expansion joints.

F. Install Construction Joint Dowel Bars & Sleeves per the Reinforcing dowels, or sleeves for the reinforcing dowels, shall be secured in place prior to placing concrete. Align dowels in straight, even alignments in the middle of the concrete profile during casting operations. Dowels and sleeves shall not be pressed into the concrete during casting and after the concrete has been placed.

G. Apply epoxy repair coating to uncoated or damaged surfaces of epoxy-coated reinforcement, as required.

3.5 CONCRETE PLACEMENT
A. General: Comply with requirements and with recommendations in ACI 304R for measuring, mixing, transporting, and placing concrete.

B. Preparation: Remove all free water from forms before concrete is deposited. Remove hardened concrete, debris, and foreign materials from interior surfaces of forms, exposed reinforcing, and from surfaces of mixing and conveying equipment.

C. Sub-Base: Sub-Base shall be free of ruts, holes, ridges, etc. Smooth and compact sub-base to an even plane.

D. Wetting: Wet wood forms sufficiently to tighten up cracks. Wet other materials sufficiently to reduce absorption and to help maintain concrete workability. Dampen earth sub-grade twentyfour (24) hours before placing concrete, but do not muddy. Re-roll where necessary for smoothness, and remove loose material from compacted sub-base surface prior to placing concrete.

E. Inspection: Before placing concrete, inspect and complete formwork installation, reinforcement steel, dowels/sleeves, and items to be embedded or cast in. Notify other trades to permit installation of their Work.

1. Reinforcement and Forms shall be secured firmly in position such that they will not be displaced during the placement of concrete.

2. Reinforcement Bars, Ties, and Welded Wire Reinforcement shall be completely encased in concrete, at a minimum of two- edge of the concrete.

3. Do not place concrete around manholes or other structures until they are at the required finish elevation and alignment.

F. Deposit and spread concrete in a continuous operation between transverse joints. Do not push or drag concrete into place or use vibrators to move concrete into place.

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G. Reinforcement shall be secured firmly in position on chairs in the middle of the site concrete during casting operations. Should reinforcement come loose from the chairs, pull reinforcement into position as the concrete is placed by means of hooks. Concrete shall be worked under the steel to insure that it is at the proper distance in the middle of the site concrete.

H. Consolidate site concrete by mechanical vibrating equipment supplemented by hand-spading, rodding, or tamping. Use equipment and procedures to consolidate concrete according to recommendations in ACI 309R.

I. Screed surfaces with a straightedge and strike off. Commence initial floating using bull floats or darbies to form an open textured and uniform surface plane before excess moisture or bleed water appears on the surface. Do not further disturb concrete surfaces before beginning finishing operations.

J. When adjoining concrete lanes are placed in separate pours, do not operate equipment on concrete until concrete has attained eighty-five-percent (85%) of its fully hydrated compressive strength.

K. Cold-Weather Placement: Comply with ACI 306.1, and as follows. Protect concrete work from physical damage or reduced strength that could be caused by frost, freezing actions, or low temperatures.

2. Do not use calcium chloride, salt, or other materials containing anti-freeze agents or chemical accelerators, unless otherwise specified and approved in mix designs.

L. Hot-Weather Placement: Place concrete according to recommendations in ACI 305R and as follows when hot-weather conditions exist:

2. Cover reinforcement steel with water-soaked burlap so steel temperature will not exceed ambient air temperature immediately before embedding in concrete.

3. Fog-spray forms, reinforcement steel, and sub-grade just before placing concrete. Keep sub-grade moisture uniform without standing water, soft spots, or dry areas.

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1. When joining existing paving, place transverse joints to align with previously placed joints, unless otherwise indicated.

B. Construction Joints: Set construction joints at side and end terminations of site concrete and at locations where site concrete operations are stopped for more than one-half (1/2) hour, unless site concrete terminates at isolation joints.

1. Continue reinforcement across construction joints, unless otherwise indicated. Do not continue reinforcement through sides of site concrete strips, unless otherwise indicated on the Contract Drawings.

2. Provide tie bars at sides of site concrete strips where indicated.

3. Use a bonding agent at locations where fresh concrete is placed against hardened or partially hardened concrete surfaces.

C. Expansion Joints: Form expansion joints of preformed joint-filler strips abutting concrete curbs, catch basins, manholes, inlets, structures, walks, buildings, foundations, walls, other fixed objects, and in other locations as indicated on the Contract Drawings. Provide Expansion Joints at full depth of Site Concrete where Site Concrete meets vertical faces of buildings, structures, foundations, walls, etc.

1. Locate expansion joints at maximum intervals of twenty (20) feet, unless otherwise indicated on the Contract Drawings.

2. Extend joint fillers full width and depth of joint.

3. Provide Construction Joint Dowel Bars at the spacing distances indicated in the Contract Drawings.

4. Terminate Joint Filler less than 1/2 inch or more than onesurface if joint sealant is indicated.

5. Place top of Joint Filler flush with finished concrete surface if joint sealant is not indicated.

6. Furnish joint fillers in one (1)-piece lengths. Where more than one (1) length is required, lace or clip joint-filler sections together.

7. Protect top edge of joint filler during concrete placement with metal, plastic, or other temporary preformed cap. Remove protective cap after concrete has been placed on both sides of joint.

1. General Methodology: Contraction Joints shall be placed in Site Concrete to minimize the occurrence of random cracking on the surface due to drying shrinkage or stress loading and to reduce the width of concrete cracks should they occur. When not indicated on the Contract Drawings, Contraction Joints shall be placed at 24x the thickness of the site concrete.

2. Saw-Cut Contraction Joints:
a. Construct Saw-Cut Contraction Joints with a circular power saw, equipped with a new, shatterproof abrasive or diamond-tipped blade. Cut 3/16-inch-wide joints (maximum width of saw-blade) into concrete surface. Cutting action shall not tear, abrade, spall, shatter, or otherwise damage the surface. b. Saw-cut concrete surface when successful jointing results can be achieved and prior to uncontrolled random contraction cracking of concrete occurs. 1) Early-entry Saw cuts: When used, provide saw cuts into fresh to 1-

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c. Perform saw-cut joints cleanly and smoothly, to a constant and equal depth, in a continuous consistent line, with no over-cutting.
d. Depth:
1) Contraction Joints: Construct depth equal to a minimum of one-fourth (1/4) of the concrete slab thickness.
2) Isolation Joints: Construct depth equal to the full depth of the concrete thickness.
e. Perform in as continuous an operation as possible, to avoid misalignment of joints.

Use chalk lines, forms, or templates as required, to achieve consistent lines) f. Use a hand grinder with a four-inch (4 diamond blade to saw-cut up to vertical edges such as walls, steps, curbs and columns. Do not over-cut into vertical surfaces or adjacent concrete surfaces.

E. Edging: Tool edges of site concrete, as required, after initial floating, with an edging tool to the following radius or chamfer. Repeat tooling of edges after applying surface finishes. Eliminate tool marks on Site Concrete surfaces.

1. Radius: .

2. 3.7 CONCRETE FINISHES
A. General:

1. Any exposed Site Concrete surfaces that are subject to pedestrian traffic shall - re he requirements outlined in CBC, Section 1124B.1, and per ADAAG

4.5.1. a. The minimum coefficient of friction shall meet or exceed 0.8 on exterior and 0.6 on interior surfaces.
b. Exposed Site Concrete surfaces shall have the following finish on all surfaces less than six percent (6%) slope:
1) Medium Broom Textured Finish, or a textured finish as specified which is equivalent to the finished texture of a Medium Broom Textured Finish. c. Exposed Site Concrete surfaces shall have the following finish on all surfaces greater than six percent (6%) slope:
1) Heavy Broom Textured Finish, or a textured finish as specified which is equivalent to the finished texture of a Heavy Broom Textured Finish. d. Color(s) and finish(es) specified herein shall match referee samples and fieldconstructed mock-up samples as approved by the Landscape Architect. e. Wetting of concrete surfaces during screeding, initial floating, or finishing operations is strictly prohibited.

B. Float Finish:

1. Applications: Provide Float finish for Veneer Unit Paving Sub-slabs. Provide in areas as indicated on Contract Drawings

2. After initial screeding and floating, commence a second floating operation when bleedwater sheen has disappeared and the Site Concrete surface has stiffened sufficiently to permit operations. Float surface with power-driven floats, or by hand floating if area is small or inaccessible to power units. Finish surfaces to true planes. Cut down high spots, and fill low spots. Re-float surface immediately to uniform granular texture.

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a. Float Texture:
1) Use aluminum or magnesium float to produce medium texture. 2) Use wood float to provide coarse texture.

3. Provide contraction jointing and edging, as required, in the locations indicated in the Contract Drawings, and of the type(s) indicated herein this Section. a. Refer to the Site Concrete Schedule indicated herein this Section for Sealer requirements.

3.8 SITE CONCRETE PROTECTION AND CURING
A. General: Protect freshly placed Site Concrete from premature drying and excessive cold or hot temperatures. Comply with ACI 306.1 for cold-weather protection and follow recommendations in ACI 305R for hot-weather protection during curing.

B. Evaporation Retarder: Apply Evaporation Retarder to Site Concrete surfaces if hot, dry, or windy conditions cause moisture loss approaching 0.2 lb/sq. ft. x h before and during finishing operations. Apply according to manufacturer's written instructions after placing, screeding, and bull floating or darbying concrete, but before float finishing.

C. Concrete Curing:

1. General: Meet ACI Standard ACI 308R. Begin curing after finishing concrete, but not before free water has disappeared from concrete surface.

2. Method: Cure concrete by Direct Moisture Curing, Absorptive Cover Curing, MoistureRetaining-Cover Curing, Curing Compound application, Curing and Sealing Compound application, or a combination of these, as follows:
a. Direct Moisture Curing: Keep surfaces continuously moist for not less than seven (7) days with the following materials:
1) Water.
2) Continuous water-fog spray.
b. Absorptive Cover Curing: Cover concrete surfaces with water saturated Absorptive Cover for curing concrete, placed in widest practicable width, with tears during curing period using cover material and tape. Keep Cover continuously moist for not less than seven (7) days.
c. Moisture-Retaining-Cover Curing: Cover concrete surfaces with MoistureRetaining cover for curing concrete, placed in widest practicable width, with sides and en
adhesive. Immediately repair any holes or tears during curing period using cover material and waterproof tape. Keep Moisture-Retaining-Cover continuously moist for not less than seven (7) days.
d. Curing Compound: Apply uniformly in continuous operation by power spray or roller according to Manufacturer's written instructions. Re-coat areas subjected to heavy rainfall within three (3) hours after initial application. Maintain continuity of coating and repair damage during curing period.
e. Curing and Sealing Compound: Apply uniformly in continuous operation by power spray or roller according to Manufacturer's written instructions. Re-coat areas subjected to heavy rainfall within three (3) hours after initial application.

Maintain continuity of coating and repair damage during curing period.

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3.9 INSTALLATION OF JOINT SEALANTS
A. Provide a Joint Sealant that is compatible with the substrate material(s) to which it is being applied. Do not use a Joint Sealant that has exceeded shelf life or has jelled and cannot be discharged in a continuous flow from the application tool.

B. Ambient Temperature Criteria: The ambient temperature shall be within the limits of 40d. F. and 90d. F. when the Joint Sealant is being applied.

C. Sealant Installation Standard: Comply with recommendations of ASTM C1193 for use of Joint Sealants as applicable to materials, applications, and conditions indicated.

D. Surface Preparation of Joints:

2. Remove oil and grease with solvent. Surfaces must be wiped dry with clean cloths.

4. Where surfaces have been treated with curing compounds, oil, or other such materials, remove materials by sandblasting or wire brushing.

5. Clean non-porous surfaces by chemical cleaners or other means which are not harmful to substrates or leave residues capable of interfering with adhesion of Joint Sealants.

G. Installation of Sealant Backings: Install sealant backings to comply with the following requirements:

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H. Installation of Joint Sealants:

1. Install Joint Sealant after concrete substrate material has been cast and allowed to cure.

Remove protective cap from preformed Joint Filler. Remove any excess Joint Filler material that will inhibit an adequate depth and bond of the Joint Sealant material.

J. Sanding of Joint Sealant: Lightly apply dry sand to cover freshly-poured elastic Joint Sealant material. When Joint Sealant has hardened, remove excess sand that has not bonded to Joint Sealant.

K. Protection and Curing:

1. Protect installed Joint Sealants during and after curing period from contact with contaminating substances or from damage.

2. Cut out and remove damaged or deteriorated Joint Sealers and reseal joints with matching new materials.

3. Clean off excess Joint Sealants or sealant smears adjacent to joints as Work progresses by methods and with cleaning materials approved by the Sealant Manufacturer.

3.10 APPLICATION OF CONCRETE SEALANTS
A. Penetrating Concrete Sealer:

1. After cast-in-place concrete is fully hydrated (approx. 30-days), seal exposed site concrete surfaces with two (2) coats of approved Penetrating Concrete Sealer. Apply in appearance and not mottled.

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3.11 SITE CONCRETE TOLERANCES
A. General: Comply with ACI 117 Standard Specifications for Tolerances for Concrete Construction and Materials, and as follows:

1. Elevation: 1/4 inch.

2. Thickness: Plus 3/8 inch, minus 1/4 inch.

3. Surface: Gap below 10-foot-long, unleveled straightedge not to exceed 1/4 inch.

Variation from the Level or from the Grades shown, per Civil Engineer Drawings:
a. In pavements:
1) In any ten- 1/4 inch.
2) In twenty-feet maximum 3/8 inch.
3) In forty-feet 3/4 inch.
b. Variation in Radii:
1) In radii of less than ten-feet :
a) In any five- 1/8 inch.
b) In any ten- 1/4 inch.
2) In radii of twenty feet :
a) In any ten- 1/4 inch.
b) In any twenty-feet 3/8 inch.
3) In radii of thirty- or more:
a) In any twenty- 1/2 inch.
b) In any thirty- 1 inch.

4. Lateral Alignment and Spacing of Tie Bars and Dowels: 1 inch.

5. Vertical Alignment of Tie Bars and Dowels: 1/4 inch.

6. Alignment of Tie-Bar End Relative to Line Perpendicular to Paving Edge: 1/2 inch.

7. Alignment of Dowel-Bar End Relative to Line Perpendicular to Paving Edge: Length of dowel 1/4 inch per 12 inches.

8. 9. Contraction Joint Depth: Plus 1/4 inch, no minus.

10. Joint Width: Plus 1/8 inch, no minus.

3.12 FIELD QUALITY CONTROL
A. Testing Agency:

B. Testing Services: Testing shall be performed according to the following requirements:

1. Sampling Fresh Concrete: Representative samples of fresh concrete shall be obtained according to ASTM C172, except modified for slump to comply with ASTM C94.

2. Slump: Per ASTM C143; one (1) test at point of placement for each compressivestrength test, but not less than one (1) test for each day's pour of each type of concrete.

Additional tests will be required when concrete consistency changes.

3. Air Content: Per ASTM C231, pressure method; one (1) test for each compressivestrength test, but not less than one (1) test for each day's pour of each type of airentrained concrete.

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6. Compressive-Strength Tests: Per ASTM C39; one (1) set for each day's pour of each concrete class exceeding five (5) cu. yd. but less than 25 cu. yd., plus one (1) set for each additional 50 cu. Yd. One (1) specimen shall be tested at seven (7) days and two (2) specimens at twenty-eight (28) days; one (1) specimen shall be retained in reserve for later testing, if required.
a. When frequency of testing will provide fewer than five (5) compressive-strength tests for a given class of concrete, testing shall be conducted from at least five (5) randomly selected batches or from each batch if fewer than five (5) are used. b. When total quantity of a given class of concrete is less than 50 cu. yd., the Landscape Architect may waive compressive-strength testing if adequate evidence of satisfactory strength is provided.
c. When strength of field-cured cylinders is less than eighty-five-percent (85%) of companion laboratory-cured cylinders, current operations shall be evaluated and corrective procedures shall be provided for protecting and curing in-place concrete. d. Strength level of concrete will be considered satisfactory if averages of sets of three (3) consecutive compressive-strength test results equal or exceed specified compressive strength and no individual compressive-strength test result falls below specified compressive strength by more than 500 PSI.

C. Test results shall be reported in writing to the Owner, concrete manufacturer, and Contractor within 24-hours of testing. Reports of compressive-strength tests shall contain Project identification name and number, date of concrete placement, name of concrete testing agency, concrete type and class, location of concrete batch in site concrete, design compressive strength at 28-days, concrete mix proportions and materials, compressive breaking strength, and type of break for both 7- and 28-day tests.

D. Nondestructive Testing: Impact hammer, sonoscope, or other nondestructive device may be permitted by the Owner, but will not be used as the sole basis for approval or rejection.

3.13 REPAIRS AND PROTECTION
A. Remove in its entirety (from joint to joint) and replace site concrete that is broken, cracked, damaged, or defective, or concrete which does not meet requirements of this Section.

B. Repair Standards: Repair of surface defects shall conform with applicable requirements of ACI 301. When using epoxy mortar, conform with requirements of ACI 503.4.

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C. Surface Defects:

1. Repair of surface defects shall begin immediately after form removal. For repair with epoxy mortar, concrete shall be dry.

2. Surface defects are defined to include: form-tir holes, air pockets or voids, bug holes, honeycombed areas, rock pockets, visible construction joints, fins and burrs.

3. Repair of surface defects shall be tightly bonded and shall result in concrete surfaces of uniform color and texture, matching adjacent like surfaces, and free of shrinkage cracks.

D. Drill test cores where directed by the Landscape Architect, when necessary, to determine magnitude of cracks or defective areas. Fill drilled core holes in satisfactory Site Concrete areas with Portland cement concrete bonded with epoxy adhesive.

E. Protect Site Concrete from damage. Exclude traffic from Site Concrete for at least fourteen (14) days after placement. When construction traffic is permitted, maintain Site Concrete as clean as possible by removing surface stains and spillage of materials as they occur.

F. Maintain exposed Site Concrete free of stains, discoloration, dirt, and other foreign material.

Clean Site Concrete not more than two (2) days before date scheduled for Substantial Completion inspection.

END OF SECTION

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SECTION 321513 STABILIZED DECOMPOSED GRANITE PAVING
PART 1 - GENERAL

1.1 SUMMARY
A. This Section includes materials, labor, apparatus, tools, equipment, temporary construction, transportation, and services necessary for and incidental to performing the proper completion of Work, as required, to make a complete, universally-accessible, stabilized Decomposed Granite Paving Application on a prepared sub-grade, as shown in the Contract Drawings, and as specified herein this Section.

B. Work under this Section consists of, but is not necessarily limited to, furnishing and installing the following:

1. Decomposed Granite Material.

2. Organic Binder (Stabilizer), where applicable in paving locations.

3. Accessories (Soil Sterilant (Herbicide)).

C. Related Sections: The following Sections contain requirements that relate to Work in this Section:

1. Section 3284 00 Planting Irrigation

2. Section 329113 Soil Preparation.

3. Section 329400 Landscape Planting Accessories (Geotextile Filter Fabric; Soil Sterliant (Herbicide), etc.

4. Section 329813 Landscape Establishment Period.

1.2 DEFINITIONS AND APPLICABLE STANDARDS
A. References:

1. ASTM American Society for Testing and Materials.

2. AASHTO American Association of State Highway and Transportation Officials.

3. ADAAG American with Disabilities Act Accessibility Guidelines.

4. CBC California Building Code, Title 24 Disabled Access Regulations.

B. Definitions:

1. Percent Compaction: Per ASTM D1557, percentage of the maximum in-place dry density of the same material, as determined by the Geotechnical Engineer.

2. Stabilized Decomposed Granite Paving: Shall consist of a thoroughly pre-blended mixture (before placement) of Decomposed Granite material (fines) and Organic Binder set in lifts, reacted with water, and compacted in place, creating a universally-accessible finished surface.

C. Standards for Installation:

1. Standard Specifications: Standard Specifications of the State of California, Business and Transportation Agency, Department of Transportation (CALTRANS).

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1.3 SUBMITTALS
A. General:

1. Collect information into a single Submittal for each element of construction and type of product or equipment identified under this Section for review.

Highlight catalog, product data, or brochures containing various products, sizes, and materials to show particular item submitted.

3. Submittal Format: As applicable, furnish Submittal as a single electronic digital PDF (Portable Document Format) file.

B. Digital Submittal Information:

1. Product/Material Data: Submit available product/material literature supplied by manufacturer
technical data, and tested physical and performance properties. Provide manufacturing source (name, address, and telephone number), and distributor source (name, address, and telephone number) for each type of product/material:
a. Decomposed Granite Material.
b. Organic Binder.
c. Soil Sterilant (Herbicide).

2. Supplemental Data:
a. Sieve Analysis: Submit Sieve Analysis of each type of Decomposed Granite material to ensure it meets proper grading requirements. b. Material Test Reports: Submit certified copies of the field tests performed (testing the compressive strengths) of the Stabilized Decomposed Granite Paving finished surface.
c. Recommendation: Submit written recommendation from the Manufacturer/Distributor of the Organic Binder, indicating the quantity (pounds) of Organic Binder required per ton of Decomposed Granite material (lbs./ton).

Recommendation shall be specific to each type of Stabilized Decomposed Granite material specified herein.

3. Qual
similar Decomposed Granite installations.

4. Maintenance Data: Submit available maintenance literature supplied by manufacturer indication their best practices for replenishing, grooming and performance of product.

Provide Material Samples bound and individually wrapped in re-sealable labeled 1-gallon plastic bags (as applicable):

1. Submit sample in sufficient quantity (one (1) pound minimum, per bag) of each Decomposed Granite material for review to ensure color will be compatible with the Project.

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D. Submittals under this Article will be rejected and returned without the benefit of review by the Landscape Architect if they are difficult to read due to insufficient scale, poor image quality, or poor drafting quality; or if all of the required information is missing or not presented in the format as requested.

E. No Work shall proceed under this Section until Submittal requirements indicated herein have been reviewed accordingly by the Landscape Architect.

1.4 QUALITY ASSURANCE AND CONTROL
A. Installer Qualifications:

1. Requirement: Valid California C-27 (Landscaping Contractor) License.

2. Engage an experienced Installer who has completed in the last two (2) years at least three (3) Stabilized Decomposed Granite Paving installations similar in material, design, and extent to that indicated for this Project, and whose work has resulted in construction with a record of successful in-service performance.

3. Installer's Field Supervision: Require Installer to maintain an experienced full-time supervisor on the Project site during times that installations under this Section are in progress.

B. Source Limitations: Obtain each type of Stabilized Decomposed Granite material from the same Manufacturer's plant.

C. Single-Source Responsibility: Obtain each color, type, and/or variety of Stabilized Decomposed Granite material from a single source with resources to provide products and materials of consistent quality in appearance and physical properties without delaying the Work.

Manufacturers of articles used in this Section furnish directions covering points not shown in the Contract Drawings and Contract Specifications.

E. Field-Constructed Mock-ups: Prior to the installation of Work under this Section, Contractor shall erect Field-Constructed Mock-ups for each type of Stabilized Decomposed Granite Paving application to verify selections made under this Article and to demonstrate aesthetic effects as well as qualities of materials and execution. Build Field-Constructed Mock-ups to comply with the following requirements, using materials and same base construction including special features for surface finish, compaction within lifts, color(s), and contiguous work, as indicated for the final unit of Work.

1. Locate Field-Constructed Mock-ups in a location and of the size indicated or, if not

2. Notify the Landscape Architect, in writing, at least one (1) week in advance of the dates and times when Field-Constructed Mock-ups will be erected.

3. Demonstrate quality and range of aesthetic effects and workmanship in the FieldConstructed Mock-ups that will be produced in the final unit of Work.

4. he Field-Constructed Mock-ups, in
writing, before the start of Work. Accepted Mock-ups are a prerequisite to commencing Work under this Section.

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5. Retain and maintain Field-Constructed Mock-ups during construction in an undisturbed condition. Accepted Field-Constructed Mock-ups shall be the standard for judging the completed Work under this Section.
a. When directed by the Landscape Architect, Contractor shall demolish and remove Field-Constructed Mock-up Samples from the Project Site.

6. Contractor shall provide a separate Field Constructed Mock-up for each type of Stabilized Decomposed Granite Paving application for review by the Landscape Architect.
a. Each Field-Constructed Mock-up shall measure four- four-feet (4 spective depths of Decomposed Granite indicated
in the Contract Drawings, to compare the aesthetics of material colors, textures, and finishes. Include the specified header/edging material around the perimeter of the Mock-up.
1) When the Landscape Architect determines that a Field-Constructed Mockup does not meet requirements, retain it for reference and create another Field-Constructed Mock-up until the Field-Constructed Mock-up is accepted by the Landscape Architect.

7. Accepted Field-Constructed Mock-up(s) will be the standard by which remaining Work will be evaluated for technical and aesthetic merit, and re a prerequisite to commencing any Work under this Section.

1.5 DELIVERY, STORAGE, AND HANDLING
A. Protect Stabilized Decomposed Granite Paving material from contamination with foreign materials. Isolate stockpiles to prevent mixing of different aggregate grades prevent contamination with organic materials.

B. Deliver perishable material in original, unopened packaging. Protect from dampness.

C. Deliver and install Decomposed Granite materials so as to not delay Work, and install only after preparations for installation have been completed.

B. Utilities: Determine location of above grade and underground utilities and perform Work in a manner which will avoid damage to utilities. Hand excavate, as required. Maintain grade stakes until removal is mutually agreed upon by parties concerned.

C. Excavation: When conditions detrimental to installing Stabilized Decomposed Granite Paving is encountered, such as rubble fill, adverse drainage conditions, or obstructions, cease installation operations and notify Landscape Architect for further direction.

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D. Traffic Control: Maintain access for vehicular, bicycle, and pedestrian traffic as required for other construction activities during installation of Stabilized Decomposed Granite Paving.

Access shall also be unobstructed and maintained at all times to allow for entry and exit of emergency vehicles.

E. Grades and Levels: Establish and maintain required levels and grade elevations. Review installation procedures and coordinate Work herein this Section with other Work affected.

F. Installation: Perform installation of Stabilized Decomposed Granite Paving only when weather and soil conditions during rain or while sub base is wet from rain. Do not apply Soil Sterilant when winds exceed 10 mph or during or immediately after rain.

G. Sequence and Scheduling: Do not install Work under this Section prior to acceptance of subgrade preparation Work under another Section. Install edging/header materials prior to placement of Stabilized Decomposed Granite Paving, where applicable. Coordinate with other trades to insure proper placement of irrigation sleeves (per Section 328400) prior to installation of Decomposed Granite.

H. Construction Site Observations: Periodic site observations shall be made by the Landscape Architect during the installation of Work under this Section for compliance with requirements.

Landscape Architect retains right to observe Work for defects and to reject unsatisfactory or defective Work under this Section at any time during progress of Work. The Contractor shall request, in writing, at least one (1) week in advance of the time when mandatory site observation(s) by the Landscape Architect are required.

1.7 SUBSTITUTIONS
A. Consideration: Stabilized Decomposed Granite Paving materials to be considered equal to the Stabilized Decomposed Granite Paving materials indicated herein this Section shall be reviewed by the Landscape Architect. Materials with equal performance characteristics produced by ions in
dimensional size, color, composition, operation, and/or other characteristics do not change the design concept, aesthetic appearance, nor intended performance, as solely judged by the Landscape Architect. The burden of proof on product equality is on the Contractor.

B.
of quality. This implies no right to the Contractor to substitute other materials without prior written approval by the Landscape Architect for Work under this Section.

C. Stabilized Decomposed Granite Paving material(s) substituted and installed by the Contractor, without prior written approval by the Landscape Architect, may be rejected. Contractor shall not be entitled to be compensated by the Owner where the Contractor has installed rejected substitutions without receiving prior written approval.

D. Contract Price: Substituted Stabilized Decomposed Granite Paving material(s) shall not increase the Contract price.

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1.8 LANDSCAPE ESTABLISHMENT PERIOD
A. Refer to Section 329813 Landscape Establishment Period, for requirements under this Article.

1. During the duration of the Landscape Establishment Period, continuously maintain Stabilized Decomposed Granite Paving finishes until Final Acceptance of Work is granted. Immediately repair damage to the Work as the result of weather or traffic conditions. Report damage resulting from Work of other trades after installation of Stabilized Decomposed Granite Paving Work. Repair to match adjacent undisturbed Work.

PART 2 - PRODUCTS

2.1 DECOMPOSED GRANITE MATERIAL
A. Clean, hard, durable particles or fragmented fines of select crushed granite, river rock, or basalt.

Material fines shall be evenly mixed throughout the aggregate. When produced from gravel, fifty percent (50%) by weight of the material retained on a No. 4 sieve shall have one (1) fractured face.

B. The portion retained on the No. 4 sieve shall have a maximum percentage of wear of 50 at 500 revolutions as determined by AASHTO T96-77.

C. Portion passing a No. 4 sieve shall have a maximum liquid limit of 25 and a maximum plasticity index of 7, as determined by AASHTO T89-81 and AASHTO 90-81 respectively.

D. Composition: Decomposed Granite material shall be free from clay lumps, vegetable matter, or deleterious material.

E. Grading Requirements:

Percentage of Weight Passing a Square Mesh Sieve
(AASHTO T11-82 and T27-82)
Sieve Size Percent Passing
100%
No. 4 95 100%
No. 8 75 80%
No.16 55 65%
No. 30 40 50%
No. 50 25 35%
No. 100 20 25%
No. 200 5 15%

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F. Products & Manufacturers: Subject to compliance with requirements, provide products by the following:

1. Stabilized Decomposed Granite Paving:
a. Type: Refer to the Contract Drawings.
b. Supplier: Refer to the Contract Drawings.
c. Or equal, as approved by the Landscape Architect.

2.2 ORGANIC BINDER
A. Organic Binder: Non-toxic, colorless, odorless, non-staining, concentrated organic powder that, when water is applied and then compressed, binds the Decomposed Granite material together, creating a natural-appearing, firm surface of Stabilized Decomposed Granite Paving.

1. Products & Manufacturers: Subject to compliance with requirements, provide products by the following:
a. Material: Stabilizer®, Stabilizer Solutions, Inc., Phoenix, AZ. 1) Supplier:
a) KRC Rock, San Marcos, CA, ph. 800-427-0572.
b) Southwest Boulder & Stone, Fallbrook, CA, ph. 877.792.7625. c) Or equal, as approved by the Landscape Architect.
2) Application Rate:
application rate of 12 lbs./ton.

2.3 EQUIPMENT
A. Mixing Equipment: Batch-type, using revolving blades or rotary drum.

B. Compaction Equipment: Power roller, weighing not less than five (5) tons.

2.4 ACCESSORIES
A. Soil Sterilant: Spray-applied, Non-Selective Post-Emergent Herbicide, for control of annual grasses and broadleaf weeds. Refer to Section 329400 Landscape Planting Accessories.

Apply in locations designated to receive Stabilized Decomposed Granite Paving only.

B. Aggregate Sub- , as required.

C. Water: Per ASTM C 94, from potable domestic source, and free from deleterious materials such as oils, acids, and organic matter. Transport as required.

D. Edging/Header Materials: Refer to Section 329400 Landscape Planting Accessories.

E. Geotextile Filter Fabric: Refer to Section 329400 Landscape Planting Accessories.

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PART 3 - EXECUTION

3.1 EXAMINATION
A. Examine surfaces indicated to receive Stabilized Decomposed Granite Paving, with Installer present, for compliance with requirements for installation tolerances and other conditions affecting performance of surfacing.

B. Sub-grades shall have been rough graded to within 0.10 ft. of finish grades less depth in location to receive Stabilized Decomposed Granite Paving.

C. Insure edging materials and irrigation sleeving have been installed and are in place and secured.

Do not proceed with installation Work until unsatisfactory conditions have been corrected.

3.2 PREPARATION
A. Application of Soil Sterilant:

1. Mixing: Mix Soil Sterilant product in sprayer tank with clean water, according to tructions. Use sprayer, which will apply the solution
uniformly, without disturbing the soil.

2. Spray Solution: Shake or stir prior to each application. Apply to dry soil surface only.

3. Application: Provide Soil Sterilant only in locations designated to receive Stabilized Decomposed Granite Paving, as indicated on the Contract Drawings.

4. Over-spraying: Avoid spraying on walls, adjoining pavements, and all areas to receive landscape planting.

5. Depth: Immediately after application of spray solution, thoroughly incorporate the solution into the soil to a depth of two- -
current printed instructions.

B. Compaction: After completion of soil sterilization operations, compact sub-base to minimum 90% compaction.

3.3 INSTALLATION
A. Installing Geo-textile Filter Fabric: Geo-textile Filter Fabric shall be installed only in locations designated to receive Stabilized Decomposed Granite Paving. Install Fabric accordingly as indicated in the Contract Drawings to prevent weeds from growing up through the Stabilized Decomposed Granite Paving. Place the Geotextile Filter Fabric across the entire width of the Paving surface; overlap ends of Fabric rolls at a minimum of six inches (6").

B. Installing Aggregate Sub-Base (as applicable):

1. Verification: Do not place Aggregate Sub-Base prior to acceptance of sub grade preparation.

2. Placement: Spread Aggregate Sub-Base to thicknesses shown on the Contract Drawings and compact to a minimum of ninety-percent (90%) compaction.

C. Installing Stabilized Decomposed Granite Paving:

1. Verification: Verify locations to receive Stabilized Decomposed Granite Paving.

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2. Lines and Levels:
a. Install Stabilized Decomposed Granite Paving true to grade, providing proper drainage of water off path and properly coinciding with adjacent Work and elevations.
b. Provide a finished Stabilized Decomposed Granite Paving surface uniform in texture and appearance. Do not permit finished Work to vary more than 1/8 inch in 10 feet from true profile and cross section. Finished Work shall be installed to fully comply as a universally-accessible pavement surface, per applicable Code requirements.

3. Mixing:
a. General: Stabilized Decomposed Granite Paving shall be thoroughly pre-blended before placement.
b. Organic Binder: Thoroughly pre-blend Decomposed Granite material with Organic Binder at the rate recommended by the Organic Binder manufacturer for each type of Decomposed Granite material specified, but not less than of twelve (12) pounds of Organic Binder per one (1) ton of Decomposed Granite material (dry weight).
1) It is essential the Organic Binder be thoroughly mixed, blended, and uniformly incorporated throughout the Decomposed Granite material to achieve a successful result. The Organic Binder locks the fines in the Decomposed Granite material together, trapping the larger crushed aggregate screenings. The Organic Binder does not act directly on larger aggregate screenings. Proper mixing is a must for a successful application. a) Blending is best accomplished in a plug mill; a truck mounted mixer or a portable mechanical mixer may also be used.
b) Blend Stabilized Decomposed Granite Paving mixture for a minimum of 15 minutes prior to placing on compacted sub-surface material. c) Drop spreading of Organic Binder over graded Decomposed Granite material is not acceptable. Mixing by roto-tilling is also not acceptable.
d) Organic Binder shall not be applied during, just prior to, or immediately following rainfall.

4. Placement:
a. General: After pre-blending, place the Stabilized Decomposed Granite Paving material onto the compacted sub-surface material. Carefully place to avoid segregation in two (2) equal twob. Grade, screed, and smooth the Stabilized Decomposed Granite Paving to desired finish grades. Allow for compaction of the material.

5. Watering: Apply water until moisture penetrates to the full depth of the Stabilized Decomposed Granite Paving.
a. Water activates the Organic Binder; it is essential that the full depth of the Stabilized Decomposed Granite Paving is saturated at this time. Apply water from a hand held hose with a spray nozzle set to coarse spray. Water pressure should not disturb the leveled Paving surface. Do not use a water truck for water distribution or a high-pressure sprayer.
1) Test for water penetration through random core inspections. After inspection of cores, fill cored holes with Paving removed; smooth and hand tamp to match adjoining surface grades.
2) A one (1)-hour application at a rate of +/-20 GPM per 1,000 sq. ft. of surface seems to achieve the desired full depth moisture penetration.

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3) Let watered Stabilized Decomposed Granite Paving stand between six (6) to twenty-four (24) hours until all surface water has dissipated; the Paving surface should be moist, but not wet.

6. Compacting: While the Stabilized Decomposed Granite Paving material is still thoroughly moist, compact to a minimum 90% relative compaction, or as recommended by the Geotechnical Engineer. Compact each area with at least four (4) passes of the compacting equipment. After compacting, screed smooth.
a. Compaction should be done with a heavy lawn roller (minimum 225 pounds and maximum 30-inch width) to achieve finish grade and initial compaction. Handtamp edges around benches, signposts, trash receptacles, etc. Use a heavy (1-ton minimum) small rider, after having used the lawn roller, to obtain the desired final dense, smooth uniform texture. Do not use whackers, vibratory rollers or a vibrating plate tamper; the Stabilized Decomposed Granite Paving will not harden for weeks after vibration.
1) If the Decomposed Granite Paving surface is flaky or sticks to the roller drum, the Paving hydration level is deficient; cautiously add more water as required to achieve the Paving
2) If the roller creates a wash board effect or rills, additional time is required to allow the Paving to achieve the proper hydration level.

7. Contaminated Areas: Do not permit Stabilized Decomposed Granite Paving to contaminate adjoining planting areas or finishes. Clean up and remove all material spilled into adjacent planting areas.

8. Grading: When surface areas have been rolled and it becomes necessary to add a thin layer of Stabilized Decomposed Granite Paving material to bring the surface to grade, the previously rolled or compacted area shall be thoroughly scarified to a depth of two-inches erial.

9. Drainage: Surface to be compacted and graded to ensure proper drainage of water off walkway to adjacent surfacing and/or planting area.

10. Curing: Allow finished Stabilized Decomposed Granite Paving surface to dry completely. Set-up time varies, depending on weather conditions. a. A hot, dry climate will set up sooner than a cool, moist climate.

3.4 FIELD QUALITY CONTROL
A. Tests: For each lift of Stabilized Decomposed Granite Paving, provide written verification as to the degree of compaction by a certified testing laboratory. Re-compact failed areas until specified compaction is achieved.

B. Testing shall be the sole financial responsibility of the Contractor.

3.5 REVIEW OF COMPLETED INSTALLATION
A. Finished Stabilized Decomposed Granite Paving surfaces shall be smooth, uniform and solid, with no evidence of shipping or cracking. Dried, compacted material shall be firm through the entire depth, with no spongy areas. Loose material shall not be present on the surface initially.

After the first year of use, a minor amount of loose material is expected on the surface of Stabilized Decomposed Granite Paving finishes.

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B. Loose Decomposed Granite material on the surface or unconsolidated crushed aggregate screenings below the surface of Stabilized Decomposed Granite Paving finishes is evidence of improper bonding due to poor mixing or insufficient watering. Test the loose material for adequate Organic Binder by wetting, then tamping, and allowing it to dry. If the material still is unconsolidated, the Organic Binder did not get mixed adequately throughout the Stabilized Decomposed Granite Paving material. If the material now is solid, initial watering was insufficient. Cracking or sponginess is evidence of excessive Organic Binder in the mix.

C. Unconsolidated Paving areas shall be excavated and replaced accordingly with new Stabilized Decomposed Granite Paving material with a high proportion of fines meeting the grading requirements above, and pre-blended with Organic Binder per the procedures listed above.

Patched areas shall be wetted thoroughly and rolled smooth. Patching shall be completed prior to any surface smoothing.

D. Smoothing of Stabilized Decomposed Granite Paving: Significant irregularities shall be smoothed out prior to final acceptance of Work. Smoothing shall be accomplished by rewetting/saturating rough areas thoroughly, and then rolling the material again with a heavy roller (1,000 1,500 lb. powered walk-behind roller, or small rider). Whackers are not recommended.

E. Tolerances of Stabilized Decomposed Granite Paving:

1. Depth: Final thickness of completed Stabilized Decomposed Granite Paving shall not vary more than 1/4-inch from dimension indicated in the Contract Drawings.

Measurements may be taken by means of test holes taken at random, finished surfaces.

Correct any variations in the thickness beyond the allowable ½ inch by repeating the procedures listed above.

F. Width: Final width of completed Stabilized Decomposed Granite Paving shall not vary more than ½ inch from typical dimension width as indicated. Measurements may be taken at random cross sections along the finished surface.

G. Where installed, no edges of the Geotextile Filter Fabric shall be exposed.

3.6 REPAIRS AND PROTECTION
A. Damage or Defective Installation: Remove and replace Stabilized Decomposed Granite Paving that is damaged or defective, or does not meet the requirements indicated herein this Section.

B. Replacement of Stabilized Decomposed Granite Paving: If compression tests of cored samples fail to meet the specified compressive strengths as recommended by the Manufacturer, immediately remove and replace the Stabilized Decomposed Granite Paving with material conforming to the Contract Specifications.

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C. Protection: Protect Stabilized Decomposed Granite Paving against traffic, injury, defacement or damage (by rain or other outside force during curing period) and subsequent construction operations until Substantial Completion. Exclude traffic from Stabilized Decomposed Granite Paving for a minimum of fourteen (14) days after placement. When construction traffic is Stabilized Decomposed Granite
Paving as clean and level as possible by removing surface stains, spillage of materials as they occur, and traffic markings/grooves, etc., and to repair any damaged caused by said construction traffic.

D. Maintain Stabilized Decomposed Granite Paving finishes free of stains, discoloration, dirt, and other foreign material until Final Acceptance of Work.

3.7 CLEAN UP AND PROTECTION
A. For Work under this Section, keep Work area in a clean, orderly, and safe condition. Contractor shall remove trash caused from his Work on a weekly basis throughout the duration of the Work.

B. Protect Stabilized Decomposed Granite Paving from damage due to landscape operations, operations by other Contractors and trades, and trespassers. Maintain protection during installation and maintenance periods.

C. Upon completion of his Work under this Section, the Contractor shall remove rubbish, waste, debris, excess construction materials, and other items resulting from construction operations offsite as described herein this Section and directed by the Landscape Architect. Clean all adjoining pavements, edgings/headers free from excess Stabilized Decomposed Granite Paving material.

3.8 FINAL REVIEW
A. Final Review under this Section shall be performed upon completion of the Landscape Establishment Period. Refer to Section 329813 Landscape Establishment Period, for requirements.

END OF SECTION

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Hermosa Beach City CouncilFebruary 25, 2025

Hermosa Beach City Council
February 25, 2025