Revised_12-18-2009-Specifications.pdf

NOAA – La Jolla Laboratory Replacement October December 18, 2009 Final Construction Documents

TABLE OF CONTENTS 00010 - 1

DIVISION 0 – BIDDING AND CONTRACTING REQUIREMENTS

CONSTRUCTION AGREEMENT (NOT INCLUDED) (Amendment 2) GEOTECHNICAL REPORT (NOT INCLUDED) (Amendment 2)

CERTFICATES OF COMPLIANCE

SECTION 00010 - TABLE OF CONTENTS

DIVISION 1 - GENERAL REQUIREMENTS

01060 REGULATORY/PERMITTING REQUIREMENTS

01065 SAFETY

01290 PAYMENT PROCEDURES

01310 PROJECT MANAGEMENT AND COORDINATION

01320 CONSTRUCTION PROGRESS DOCUMENTATION

01322 PHOTOGRAPHIC DOCUMENTATION

01330 SUBMITTAL PROCEDURES (Reissued Amendment 2)

01352 LEED REQUIREMENTS

01353 INDOOR AIR QUALITY MANAGEMENT DURING CONSTRUCTION

01354 INDOOR AIR QUALITY TESTING BEFORE OCCUPANCY

01400 QUALITY CONTROL (Reissued Amendment 2)

01420 REFERENCES

01500 TEMPORARY FACILITIES AND CONTROLS (Reissued Amendment 2)

01524 CONSTRUCTION WASTE MANAGEMENT

01540 SECURITY

01600 PRODUCT REQUIREMENTS

01635 SUBSTITUTION PROCEDURES

01701 EXECUTION REQUIREMENTS

01702 CLOSEOUT PROCEDURES AND FINAL ACCEPTANCE

01731 CUTTING AND PATCHING

01781 PROJECT RECORD DOCUMENTS

01782 OPERATION AND MAINTENANCE DATA

01800 COMMISSIONING

01810 FUNCTIONAL PERFORMANCE TESTING (FPT) PROCEDURES

01820 DEMONSTRATION AND TRAINING

DIVISION 2 - SITE CONSTRUCTION

02230 SITE CLEARING

02231 TREE PROTECTION AND TRIMMING

02260 EXCAVATION SUPPORT AND PROTECTION

02300 EARTHWORK (Reissued Amendment 2)

02510 WATER DISTRIBUTION

02530 SANITARY SEWERAGE

02630 STORM DRAINAGE

02741 ASPHALT PAVING (Reissued Amendment 2) 02751 CEMENT CONCRETE PAVEMENT (Revised 12/18/2009)

02752 CONCRETE PAVERS FOR GREEN ROOF

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02770 TACTILE WARNING SURFACES (PRECAST CONCRETE)

02810 IRRIGATION SYSTEMS

02811 IRRIGATION SYSTEM FOR GREEN ROOF

02915 SOILS FOR GREEN ROOF (Reissued Amendment 2)

02930 PLANTS FOR GREEN ROOF

02931 LANDSCAPING

DIVISION 3 - CONCRETE

03300 CAST-IN-PLACE CONCRETE (Reissued Amendment 2) 03331 CAST-IN-PLACE ARCHITECTURAL CONCRETE (Deleted Amendment 2)

03450 ARCHITECTURAL PRECAST CONCRETE STAIRS

03532 ARCHITECTURAL CONCRETE TOPPING

DIVISION 4 - MASONRY

04810 UNIT MASONRY ASSEMBLIES (Revised 12/18/2009)

DIVISION 5 - METALS

05120 STRUCTURAL STEEL

05210 STEEL JOISTS (Revised 12/18/2009)

05310 STEEL DECK

05400 COLD-FORMED METAL FRAMING (Revised 12/18/2009) 05500 METAL FABRICATIONS (Revised 12/18/2009)

05511 METAL STAIRS

05521 PIPE AND TUBE RAILINGS

05721 ORNAMENTAL RAILINGS

05730 MISCELLANEOUS INTERIOR FORMED METAL

05811 ARCHITECTURAL JOINT SYSTEMS (Reissued Amendment 2)

DIVISION 6 - WOOD AND PLASTICS

06100 ROUGH CARPENTRY

06160 SHEATHING (Reissued Amendment 2) 06402 INTERIOR ARCHITECTURAL WOODWORK (Reissued Amendment 2)

06615 ENGINEERED STONE COUNTERTOPS

06640 PLASTIC PANELING

DIVISION 7 - THERMAL AND MOISTURE PROTECTION

07131 PLAZA DECK/FOUNDATION WATERPROOFING (Reissued Amendment 2) 07162 CRYSTALLINE WATERPROOFING (Issued Amendment 2) 07182 PEDESTRIAN DECK COATINGS (Reissued Amendment 2)

07210 BUILDING INSULATION

07552 STYRENE-BUTADIENE-STYRENE (SBS) MODIFIED BITUMINOUS MEMBRANE ROOFING

(Reissued amendment 2)

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07620 SHEET METAL FLASHING AND TRIM

07710 MANUFACTURED ROOF SPECIALTIES

07716 EXPANSION JOINT ASSEMBLIES

07720 ROOF ACCESSORIES (Reissued Amendment 2)

07811 SPRAYED FIRE-RESISTIVE MATERIALS

07841 THROUGH-PENETRATION FIRESTOP SYSTEMS

07842 FIRE-RESISTIVE JOINT SYSTEMS

07920 JOINT SEALANTS

DIVISION 8 - DOORS AND WINDOWS

08110 STEEL DOORS AND FRAMES (Reissued Amendment 2)

08119 FIRE RATED DOORS AND FRAMES

08130 STAINLESS-STEEL DOORS AND FRAMES (Reissued Amendment 2)

08211 FLUSH WOOD DOORS

08310 HORIZONTAL ACCESS DOOR

08340 OVERHEAD COILING GRILLES

08362 OVERHEAD COILING DOORS

08411 ALUMINUM-FRAMED ENTRANCES AND STOREFRONTS

08450 ALL-GLASS ENTRANCES AND STOREFRONTS

08520 ALUMINUM WINDOWS

08710 DOOR HARDWARE (Reissued Amendment 2)

08800 GLAZING

08816 DECORATIVE GLASS (Reissued Amendment 2)

08830 MIRRORS

08911 GLAZED ALUINUM CURTAINWALLS

DIVISION 9 - FINISHES

09111 NON-LOAD-BEARING STEEL FRAMING

09220 PORTLAND CEMENT PLASTER (Reissued Amendment 2) 09250 GYPSUM BOARD (Reissued Amendment 2) (Revised 12/18/2009)

09265 GYPSUM BOARD SHAFT-WALL ASSEMBLIES

09310 CERAMIC TILE (Reissued Amendment 2) (Revised 12/18/2009)

09511 ACOUSTICAL PANEL CEILINGS

09547 LINEAR WOOD CEILINGS (Issued Amendment 2)

09548 STAINLESS STEEL WALL PANELS

09638 STONE FLOORING

09651 RESILIENT FLOOR TILE

09652 RESILIENT SHEET FLOORING (Reissued Amendment 2)

09653 RESILIENT WALL BASE AND ACCESSORIES

09671 RESINOUS FLOORING AND WALL FINISH

09680 CARPET

09681 CARPET TILE

09720 WALL COVERINGS

09751 INTERIOR STONE FACING (Deleted Amendment 2) 09762 CONCRETE FLOOR SEALER/HARDENER (Issued Amendment 2) 09841 ACOUSTICAL WALL PANELS (Reissued Amendment 2)

09911 EXTERIOR PAINTING

09912 INTERIOR PAINTING

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09931 WOOD STAINS AND TRANSPARENT FINISHES

09960 HIGH PERFORMANCE COATINGS

DIVISION 10 - SPECIALTIES

10155 TOILET COMPARTMENTS

10265 IMPACT-RESISTANT WALL PROTECTION

10431 SIGNAGE (Reissued Amendment 2)

10505 SOLID PLASTIC LOCKERS

10522 FIRE EXTINGUISHER CABINETS

10523 FIRE EXTINGUISHERS

10531 TERRA COTTA CLAY TILE BAGUETTE SYSTEM

10801 TOILET AND BATH ACCESSORIES

DIVISION 11 – EQUIPMENT

11132 PROJECTION SCREENS

11150 PARKING CONTROL EQUIPMENT (Deleted Amendment 2)

11160 LOADING DOCK EQUIPMENT

11610 FUME HOODS AND EXHAUST DEVICES (Reissued Amendment 2) 11640 LABORATORY EQUIPMENT (Reissued Amendment 2)

DIVISION 12 – FURNISHINGS

12051 FURNITURE AND FURNISHINGS – GENERAL REQUIREMENTS

12494 ROLLER SHADES

12630 LABORATORY CASEWORK AND OTHER FURNISHINGS (Reissued Amendment 2)

12692 ENTRANCE GRIDS

DIVISION 13 - SPECIAL CONSTRUCTION

13034 CLEANROOM WALL SYSTEMS

13035 CONTROLLED ENVIRONMENT ROOMS (Reissued Amendment 2)

13037 CLEANROOM CEILINGS SYSTEMS

13090 RADIATION PROTECTION

13131 ACRYLIC AQUARIUM WINDOWS

13700 BASIC ELECTRONIC SECURITY REQUIREMENTS

13710 CARD ACCESS CONTROL SYSTEM

13712 CLOSED CIRCUIT VIDEO EQUIPMENT (Reissued Amendment 2)

13718 SECURITY EQUIPMENT CABINETS

13726 SECURITY DEVICES

13852 DIGITAL, ADDRESSABLE FIRE ALARM SYSTEM

13930 WET-PIPE FIRE SUPPRESSION SPRINKLERS

13935 DRY-PIPE FIRE SUPPRESSION SPRINKLERS

13967 CLEAN-AGENT EXTINGUISHING SYSTEMS

13974 FIRE SUPPRESSION STANDPIPES

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DIVISION 14 - CONVEYING SYSTEMS

14210 ELECTRIC TRACTION PASSENGER ELEVATORS

14213 ELECTRIC TRACTION SERVICE ELEVATORS

14621 HOIST AND RAIL SYSTEM (Reissued Amendment 2)

DIVISION 15 - MECHANICAL/PLUMBING SECTIONS

15051 COMMON WORK RESULTS FOR FIRE SUPPRESSION

15052 COMMON WORK RESULTS FOR PLUMBING

15053 COMMON WORK RESULTS FOR HVAC

15057 COMMON MOTOR REQUIREMENTS FOR PLUMBING EQUIPMENT

15058 COMMON MOTOR REQUIREMENTS FOR HVAC EQUIPMENT

15061 HANGERS AND SUPPORTS FOR PLUMBING PIPING AND EQUIPMENT

15062 HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT

15072 VIBRATION AND SEISMIC CONTROLS FOR FIRE-SUPPRESSION PIPING AND

EQUIPMENT

15073 VIBRATION AND SEISMIC CONTROLS FOR PLUMBING PIPING AND

EQUIPMENT

15074 VIBRATION AND SEISMIC CONTROLS FOR HVAC PIPING AND EQUIPMENT

15076 IDENTIFICATION FOR PLUMBING PIPING AND EQUIPMENT

15077 IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

15082 PLUMBING INSULATION

15083 HVAC AND PROCESS INSULATION

15091 SLEEVES AND SLEEVE SEALS FOR FIRE SUPPRESSION PIPING

15092 SLEEVES AND SLEEVE SEALS FOR PLUMBING PIPING

15093 SLEEVES AND SLEEVE SEALS FOR HVAC PIPING

15096 ESCUTCHEONS FOR FIRE SUPPRESSION PIPING

15097 ESCUTCHEONS FOR PLUMBING PIPING

15098 ESCUTCHEONS FOR HVAC PIPING

15111 GENERAL-DUTY VALVES FOR PLUMBING PIPING

15112 GENERAL-DUTY VALVES FOR HVAC PIPING

15123 EXPANSION FITTINGS AND LOOPS FOR PLUMBING PIPING

15124 EXPANSION FITTINGS AND LOOPS FOR HVAC PIPING

15126 METERS AND GAGES FOR PLUMBING PIPING

15127 METERS AND GAGES FOR HVAC PIPING

15140 DOMESTIC WATER PIPING

15145 DOMESTIC WATER PIPING SPECIALTIES

15150 SANITARY WASTE AND VENT PIPING

15155 SANITARY WASTE PIPING SPECIALTIES

15160 STORM DRAINAGE PIPING

15165 STORM DRAINAGE PIPING SPECIALTIES

15181 HYDRONIC PIPING

15185 HYDRONIC PUMPS

15189 HVAC WATER TREATMENT

15195 FACILITY NATURAL-GAS PIPING

15214 COMPRESSED-AIR PIPING FOR LABORATORY FACILITIES

15223 CHEMICAL WASTE SYSTEMS FOR LABORATORY

15253 COMPRESSED-AIR EQUIPMENT FOR LABORATORY FACILITIES

15410 PLUMBING FIXTURES

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15413 TECHNOLOGY TANK LIFE SUPPORT SYSTEMS

15415 DRINKING FOUNTAINS AND WATER COOLERS

15441 DOMESTIC WATER PUMPS

15445 SEWAGE PUMPS

15446 SUMP PUMPS

15450 POTABLE-WATER STORAGE TANKS

15469 WATER SOFTENERS

15471 AQUARIA LIFE SUPPORT SYSTEM

15487 DOMESTIC WATER HEAT EXCHANGERS

15513 CONDENSING BOILERS

15550 BREECHINGS, CHIMNEYS, AND STACKS

15555 DRAFT CONTROL DEVICES

15625 MAGNETIC BEARING CENTRIFUGAL WATER CHILLERS – 42 DEGREE CHILLED

WATER

15626 ROTARY SCREW WATER CHILLERS – 29 DEGREE CHILLED WATER

15635 REFRIGERANT DETECTION AND ALARM

15640 COOLING TOWERS

15710 HYDRONIC HEAT EXCHANGERS

15725 MODULAR INDOOR CENTRAL-STATION AIR-HANDLING UNITS

15734 COMPUTER-ROOM AIR-CONDITIONERS

15736 FILTER FAN UNITS

15762 UNIT HEATERS

15763 FAN-COIL UNITS

15815 METAL DUCTS

15820 DUCT ACCESSORIES

15836 AXIAL FANS

15838 POWER VENTILATORS, DUST COLLECTION, PAINT SPRAY BOOTH

15840 AIR TERMINAL UNITS

15855 DIFFUSERS, REGISTERS, AND GRILLES

15900 HVAC INSTRUMENTATION AND CONTROLS

15940 SEQUENCE OF OPERATION

15950 TESTING, ADJUSTING, AND BALANCING

15995 MECHANICAL SYSTEM COMMISSIONING

15996 BUILDING AUTOMATION SYSTEM COMMISSIONING

DIVISION 16 - ELECTRICAL SECTIONS

16051 COMMON WORK RESULTS FOR ELECTRICAL

16052 COMMON WORK RESULTS FOR COMMUNICATIONS

16053 COMMON WORK RESULTS FOR ELECTRONIC SAFETY AND SECURITY

16055 OVERCURRENT PROTECTIVE DEVICE COORDINATION

16060 GROUNDING AND BONDING

16073 HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS

16074 VIBRATION AND SEISMIC CONTROLS FOR ELECTRICAL SYSTEMS

16075 ELECTRICAL IDENTIFICATION

16120 CONDUCTORS AND CABLES

16123 CONTROL-VOLTAGE ELECTRICAL POWER CABLES

16130 RACEWAYS AND BOXES

16139 CABLE TRAYS

16140 WIRING DEVICES

16145 LIGHTING CONTROL DEVICES

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16211 ELECTRICITY METERING

16215 ELECTRICAL POWER MONITORING AND CONTROL

16231 PACKAGED ENGINE GENERATORS

16264 STATIC UNINTERRUPTIBLE POWER SUPPLY

16269 VARIABLE FREQUENCY CONTROLLERS

16289 TRANSIENT VOLTAGE SUPPRESSION

16410 ENCLOSED SWITCHES AND CIRCUIT BREAKERS

16415 TRANSFER SWITCHES

16420 ENCLOSED CONTROLLERS

16441 SWITCHBOARDS

16442 PANELBOARDS

16461 LOW-VOLTAGE TRANSFORMERS

16491 FUSES

16511 INTERIOR LIGHTING

16521 EXTERIOR LIGHTING

16571 CENTRAL DIMMING CONTROLS

16714 COMMUNICATIONS EQUIPMENT ROOM FITTINGS

16716 COMMUNICATIONS BACKBONE CABLING

16717 COMMUNICATIONS HORIZONTAL CABLING

16718 CONDUCTORS AND CABLES FOR ELECTRONIC SAFETY AND SECURITY

16800 SOLAR PHOTOVOLTAIC SYSTEM (Reissued Amendment 2)

16995 ELECTRICAL SYSTEM COMMISSIONING

DIVISION 17 - COMMUNICATIONS SECTIONS

17100 VOICE-OVER-IP (VOIP) SYSTEM

NOAA - La Jolla Laboratory Replacement Project October 9 December 18, 2009

CEMENT CONCRETE PAVEMENT 02751 - 1

SECTION 02751 - CEMENT CONCRETE PAVEMENT

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes exterior cement concrete pavement for the following:

1. Driveways and roadways.

2. Parking lots.

3. Curbs and gutters.

4. Walkways.

B. Related Sections include the following:

1. Division 2 Section "Earthwork" for subgrade preparation, grading, and subbase course.

2. Division 3 Section "Cast-in-Place Concrete” for general building applications of concrete.

1.3 DEFINITIONS

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

1.4 SUBMITTALS

A. Product Data: For each type of manufactured material and product indicated.

B. Design Mixtures: For each concrete pavement mixture. Include alternate mixture designs when characteristics of materials, Project conditions, weather, test results, or other circumstances warrant adjustments.

C. Samples: 10-lb sample of exposed aggregate.

D. Qualification Data: For testing agency.

CEMENT CONCRETE PAVEMENT 02751 - 2

E. Material Test Reports: From a qualified testing agency indicating and interpreting test results for compliance of the following with requirements indicated, based on comprehensive testing of current materials:

1. Aggregates. Include service record data indicating absence of deleterious expansion of concrete due to alkali-aggregate reactivity.

F. Material Certificates: Signed by manufacturers certifying that each of the following materials complies with requirements:

1. Cementitious materials.

2. Steel reinforcement and reinforcement accessories.

3. Fiber reinforcement.

4. Admixtures.

5. Curing compounds.

6. Applied finish materials.

7. Bonding agent or epoxy adhesive.

8. Joint fillers.

G. Field quality-control test reports.

1.5 QUALITY ASSURANCE

A. Manufacturer Qualifications: Manufacturer of ready-mixed concrete products who complies with ASTM C 94/C 94M requirements for production facilities and equipment.

1. Manufacturer certified according to NRMCA's "Certification of Ready Mixed Concrete Production Facilities."

B. Testing Agency Qualifications: An independent agency qualified according to ASTM C 1077 and ASTM E 329 for testing indicated, as documented according to ASTM E 548.

1. Personnel conducting field tests shall be qualified as ACI Concrete Field Testing Technician, Grade 1, according to ACI CP-01 or an equivalent certification program.

C. ACI Publications: Comply with ACI 301, "Specification for Structural Concrete," unless modified by requirements in the Contract Documents.

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

E. Mockups: Cast mockups of full-size sections of concrete pavement to demonstrate typical joints, surface finish, texture, color, and standard of workmanship.

1. Build mockups in the location and of the size indicated or, if not indicated, as directed by Architect.

2. Notify Architect seven days in advance of dates and times when mockups will be constructed.

3. Obtain Architect's approval of mockups before starting construction.

CEMENT CONCRETE PAVEMENT 02751 - 3

4. Maintain approved mockups during construction in an undisturbed condition as a standard for judging the completed pavement.

5. Demolish and remove approved mockups from the site when directed by Architect.

6. Approved mockups may become part of the completed Work if undisturbed at time of

Substantial Completion.

F. Preinstallation Conference: Conduct conference at Project site to comply with requirements in Division 1 Section "Project Management and Coordination."

1. Before submitting design mixtures, review concrete pavement mixture design and examine procedures for ensuring quality of concrete materials and concrete pavement construction practices. Require representatives, including the following, of each entity directly concerned with concrete pavement, to attend conference:

a. Contractor's superintendent.

b. Independent testing agency responsible for concrete design mixtures.

c. Ready-mix concrete producer.

d. Concrete pavement subcontractor.

1.6 PROJECT CONDITIONS

A. Traffic Control: Maintain access for vehicular and pedestrian traffic as required for other construction activities.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. In other Part 2 articles where titles below introduce lists, the following requirements apply to product selection:

1. Available Products: Subject to compliance with requirements, products that may be incorporated into the Work include, but are not limited to, products specified.

2. Products: Subject to compliance with requirements, provide one of the products specified.

3. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, manufacturers specified.

4. Manufacturers: Subject to compliance with requirements, provide products by one of the manufacturers specified.

2.2 FORMS

A. Form Materials: Plywood, metal, metal-framed plywood, or other approved panel-type materials to provide full-depth, continuous, straight, smooth exposed surfaces.

1. Use flexible or curved forms for curves with a radius 100 feet or less.

CEMENT CONCRETE PAVEMENT 02751 - 4

B. Form-Release Agent: Commercially formulated form-release agent that will not bond with, stain, or adversely affect concrete surfaces and will not impair subsequent treatments of concrete surfaces.

2.3 STEEL REINFORCEMENT

A. Plain-Steel Welded Wire Reinforcement: ASTM A 185, fabricated from as-drawn steel wire into flat sheets.

B. Deformed-Steel Welded Wire Reinforcement: ASTM A 497, flat sheet.

C. Epoxy-Coated Welded Wire Fabric: ASTM A 884/A 884M, Class A, plain steel.

D. Reinforcing Bars: ASTM A 615/A 615M, Grade 60; deformed.

E. Galvanized Reinforcing Bars: ASTM A 767/A 767M, Class II zinc coated, hot-dip galvanized after fabrication and bending; with ASTM A 615/A 615M, Grade 60 deformed bars.

F. Epoxy-Coated Reinforcing Bars: ASTM A 775/A 775M or ASTM A 934/A 934M; with ASTM A 615/A 615M, Grade 60 deformed bars.

G. Steel Bar Mats: ASTM A 184/A 184M; with ASTM A 615/A 615M, Grade 60, deformed bars;

assembled with clips.

H. Plain Steel Wire: ASTM A 82.

I. Deformed-Steel Wire: ASTM A 496.

J. Epoxy-Coated-Steel Wire: ASTM A 884/A 884M, Class A coated, plain.

K. Joint Dowel Bars: Plain steel bars, ASTM A 615/A 615M, Grade 60. Cut bars true to length with Ends Square and free of burrs.

L. Epoxy-Coated Joint Dowel Bars: ASTM A 775/A 775M; with ASTM A 615/A 615M, Grade 60, plain steel bars.

M. Tie Bars: ASTM A 615/A 615M, Grade 60, deformed.

N. Hook Bolts: ASTM A 307, 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.

O. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcing bars, welded wire reinforcement, and dowels in place. Manufacture bar supports according to CRSI's "Manual of Standard Practice" from steel wire, plastic, or precast concrete of greater compressive strength than concrete, and as follows:

1. Equip wire bar supports with sand plates or horizontal runners where base material will not support chair legs.

CEMENT CONCRETE PAVEMENT 02751 - 5

2. For epoxy-coated reinforcement, use epoxy-coated or other dielectric-polymer-coated wire bar supports.

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

Q. Zinc Repair Material: ASTM A 780.

2.4 CONCRETE MATERIALS

A. Cementitious Material: Use one of the following cementitious materials, of the same type, brand, and source throughout the Project:

1. Portland Cement: ASTM C 150, Type II, gray. Supplement with the following:

a. Fly Ash: ASTM C 618, Class C.

b. Ground Granulated Blast-Furnace Slag: ASTM C 989, Grade 100 or 120.

2. Blended Hydraulic Cement: ASTM C 595, Type IP, portland-pozzolan cement.

B. Normal-Weight Aggregates: ASTM C 33, Class 4S coarse aggregate, uniformly graded.

Provide aggregates from a single source with documented service record data of at least 10 years' satisfactory service in similar pavement applications and service conditions using similar aggregates and cementitious materials.

1. Maximum Coarse-Aggregate Size: 18 mm (3/4 inch) nominal.

2. Fine Aggregate: Free of materials with deleterious reactivity to alkali in cement.

C. Exposed Aggregate: Selected, hard, and durable; washed; free of materials with deleterious reactivity to cement or that cause staining; from a single source, with gap-graded coarse aggregate as follows:

1. Aggregate Sizes: 8 mm to 13 mm (3/8 to 5/8 inch) nominal.

D. Water: ASTM C 94/C 94M.

E. Air-Entraining Admixture: ASTM C 260.

F. Chemical Admixtures: Provide admixtures certified by manufacturer to be compatible with other admixtures and to contain not more than 0.1 percent water-soluble chloride ions by mass of cementitious material.

1. Water-Reducing Admixture: ASTM C 494/C 494M, Type A.

2. Retarding Admixture: ASTM C 494/C 494M, Type B.

3. Water Reducing and Retarding Admixture: ASTM C 494/C 494M, Type D.

4. High-Range, Water-Reducing Admixture: ASTM C 494/C 494M, Type F.

5. High-Range, Water-Reducing and Retarding Admixture: ASTM C 494/C 494M, Type G.

6. Plasticizing and Retarding Admixture: ASTM C 1017/C 1017M, Type II.

CEMENT CONCRETE PAVEMENT 02751 - 6

2.5 FIBER REINFORCEMENT

A. Synthetic Fiber: Monofilament or fibrillated polypropylene fibers engineered and designed for use in concrete pavement, complying with ASTM C 1116, Type III, 1/2 to 1-1/2 inches long.

1. Available Products:

a. Monofilament Fibers:

1) Axim Concrete Technologies; Fibrasol IIP.

2) Euclid Chemical Company The; Fiberstrand 100.

3) FORTA Corporation; Forta Mono.

4) Grace, W. R. & Co.--Conn.; Grace MicroFiber.

5) Metalcrete Industries; Polystrand 1000.

6) SI Concrete Systems; Fibermix Stealth.

7) Or Equal

b. Fibrillated Fibers:

1) Axim Concrete Technologies; Fibrasol F.

2) FORTA Corporation; Forta.

3) Euclid Chemical Company The; Fiberstrand F.

4) Grace, W. R. & Co.--Conn.; Grace Fibers.

5) SI Concrete Systems; Fibermesh.

6) Or Equal.

2.6 CURING MATERIALS

A. Absorptive Cover: AASHTO M 182, Class 2, burlap cloth made from jute or kenaf, weighing approximately 9 oz./sq. yd. dry.

B. Moisture-Retaining Cover: ASTM C 171, polyethylene film or white burlap-polyethylene sheet.

C. Water: Potable.

D. Evaporation Retarder: Waterborne, monomolecular film forming; manufactured for application to fresh concrete.

1. Available Products:

a. Axim Concrete Technologies; Cimfilm.

b. Burke by Edeco; BurkeFilm.

c. ChemMasters; Spray-Film.

d. Conspec Marketing & Manufacturing Co., Inc.; Aquafilm.

e. Dayton Superior Corporation; Sure Film.

f. Euclid Chemical Company The; Eucobar.

g. Kaufman Products, Inc.; Vapor Aid.

h. Lambert Corporation; Lambco Skin.

CEMENT CONCRETE PAVEMENT 02751 - 7

i. L&M Construction Chemicals, Inc.; E-Con.

j. MBT Protection and Repair, ChemRex Inc.; Confilm.

k. Meadows, W. R., Inc.; Sealtight Evapre.

l. Metalcrete Industries; Waterhold.

m. Nox-Crete Products Group, Kinsman Corporation; Monofilm.

n. Sika Corporation, Inc.; SikaFilm.

o. Symons Corporation; Finishing Aid.

p. Vexcon Chemicals, Inc.; Certi-Vex EnvioAssist.

q. Or equal.

E. Clear Waterborne Membrane-Forming Curing Compound: ASTM C 309, Type 1, Class B.

1. Available Products:

a. Anti-Hydro International, Inc.; AH Curing Compound #2 DR WB.

b. Burke by Edoko; Aqua Resin Cure.

c. ChemMasters; Safe-Cure Clear.

d. Conspec Marketing & Manufacturing Co., Inc.; W.B. Resin Cure.

e. Dayton Superior Corporation; Day Chem Rez Cure J-11-W.

f. Euclid Chemical Company The; Kurez DR VOX.

g. Kaufman Products, Inc.; Thinfilm 420.

h. Lambert Corporation; Aqua Kure-Clear.

i. L&M Construction Chemicals, Inc.; L&M Cure R.

j. Meadows, W. R., Inc.; 1100 Clear.

k. Nox-Crete Products Group, Kinsman Corporation; Resin Cure E.

l. Symons Corporation; Resi-Chem Clear.

m. Tamms Industries Inc.; Horncure WB 30.

n. Unitex; Hydro Cure 309.

o. Vexcon Chemicals, Inc.; Certi-Vex Enviocure 100.

p. Or Equal.

F. White Waterborne Membrane-Forming Curing Compound: ASTM C 309, Type 2, Class B.

1. Available Products:

a. Anti-Hydro International, Inc.; AH Curing Compound #2 WP WB.

b. Burke by Edoco; Resin Emulsion White.

c. ChemMasters; Safe-Cure 2000.

d. Conspec Marketing & Manufacturing Co., Inc.; W.B. Resin Cure.

e. Dayton Superior Corporation; Day-Chem White Pigmented Cure J-10-W.

f. Euclid Chemical Company The; Kurez VOX White Pigmented.

g. Kaufman Products, Inc.; Thinfilm 450.

h. Lambert Corporation; Aqua Kure-White.

i. L&M Construction Chemicals, Inc.; L&M Cure R-2.

j. Meadows, W. R., Inc.; 1200-White.

k. Symons Corporation; Resi-Chem White.

l. Tamms Industries, Inc.; Horncure 200-W.

m. Unitex; Hydro White.

n. Vexcon Chemicals, Inc.; Certi-Vex Enviocure White 100.

o. Or Equal.

CEMENT CONCRETE PAVEMENT 02751 - 8

2.7 RELATED MATERIALS

A. Expansion- and Isolation-Joint-Filler Strips: ASTM D 1751, asphalt-saturated cellulosic fiber.

B. Color Pigment: ASTM C 979, synthetic mineral-oxide pigments or colored water-reducing admixtures; color stable, free of carbon black, nonfading, and resistant to lime and other alkalis.

1. Available Manufacturers:

a. Bayer Corporation.

b. ChemMasters.

c. Conspec Marketing & Manufacturing Co., Inc.

d. Davis Colors.

e. Elementis Pigments, Inc.

f. Hoover Color Corporation.

g. Lambert Corporation.

h. Scofield, L. M.Company.

i. Solomon Colors.

j. Or Equal.

2. Color: As selected by Architect from manufacturer's full range.

C. Slip-Resistive Aggregate Finish: Factory-graded, packaged, rustproof, nonglazing, abrasive aggregate of fused aluminum-oxide granules or crushed emery with emery aggregate containing not less than 50 percent aluminum oxide and not less than 20 percent ferric oxide; unaffected by freezing, moisture, and cleaning materials.

D. Bonding Agent: ASTM C 1059, Type II, non-redispersible, acrylic emulsion or styrene butadiene.

E. Epoxy Bonding Adhesive: ASTM C 881, two-component epoxy resin, capable of humid curing and bonding to damp surfaces, of class suitable for application temperature and of grade to requirements, and as follows:

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

F. Chemical Surface Retarder: Water-soluble, liquid-set retarder with color dye, for horizontal concrete surface application, capable of temporarily delaying final hardening of concrete to a depth of 3 mm to 6 mm (1/8 to 1/4 inch).

1. Available Products:

a. Burke by Edeco; True Etch Surface Retarder.

b. ChemMasters; Exposee.

c. Conspec Marketing & Manufacturing Co., Inc.; Delay S.

d. Euclid Chemical Company The; Surface Retarder S.

e. Kaufman Products, Inc.; Expose.

f. Metalcrete Industries; Surftard.

g. Nox-Crete Products Group, Kinsman Corporation; Crete-Nox TA.

h. Scofield, L. M. Company; Lithotex.

CEMENT CONCRETE PAVEMENT 02751 - 9

i. Sika Corporation, Inc.; Rugasol-S.

j. Vexcon Chemicals, Inc.; Certi-Vex Envioset.

k. Or Equal.

G. Pigmented Mineral Dry-Shake Hardener: Factory-packaged dry combination of Portland cement, graded quartz aggregate, color pigments, and plasticizing admixture. Use color pigments that are finely ground, nonfading mineral oxides interground with cement.

1. Available Products:

a. Conspec Marketing & Manufacturing Co., Inc.; Conshake 600 Colortone.

b. Dayton Superior Corporation; Quartz Tuff.

c. Euclid Chemical Company The; Surflex.

d. Lambert Corporation; Colorhard.

e. L&M Construction Chemicals, Inc.; Quartz Plate FF.

f. MBT Protection and Repair, ChemRex Inc.; Mastercron.

g. Metalcrete Industries; Floor Quartz.

h. Scofield, L. M. Company; Lithochrome Color Hardener.

i. Symons Corporation; Hard Top.

j. Or Equal

2. Color: As selected by Architect from manufacturer's full range.

H. Rock Salt: Sodium chloride crystals, kiln dried, coarse gradation with 100 percent passing 8 mm (3/8-inch) sieve and 85 percent retained on a 3 mm (No. 8) sieve.

2.8 WHEEL STOPS

A. Wheel Stops: Precast, air-entrained concrete.

1. Length: 1829 mm [6 FT].

2. Dowels: Galvanized steel, 19 mm [3/4 inch] in diameter, 254 mm [10-inch] minimum length.

3. Adhesive: As recommended by wheel stop manufacturer for application to concrete pavement.

H.

2.82.9 CONCRETE MIXTURES

A. Prepare design mixtures, proportioned according to ACI 301, for each type and strength of normal-weight concrete determined by either laboratory trial mixes or field experience.

1. Use a qualified independent testing agency for preparing and reporting proposed concrete mixture designs for the trial batch method.

B. Proportion mixtures to provide normal-weight concrete with the following properties:

1. Compressive Strength 28 Days: 20684 kP (3000 psi).

2. Maximum Water-Cementitious Materials Ratio at Point of Placement: 0.58.

CEMENT CONCRETE PAVEMENT 02751 - 10

3. Slump Limit: 100 mm (4 inches), plus or minus 25 mm (1 inch).

C. Chemical Admixtures: Use admixtures according to manufacturer's written instructions.

1. Use water-reducing admixture in concrete, as required, for placement and workability.

2. Use water reducing and retarding admixture when required by high temperatures, low humidity, or other adverse placement conditions.

D. Color Pigment: Add color pigment to concrete mixture according to manufacturer's written instructions and to result in hardened concrete color consistent with approved mockup.

2.92.10 CONCRETE MIXING

A. Ready-Mixed Concrete: Measure, batch, and mix concrete materials and concrete according to ASTM C 94/C 94M and ASTM C 1116. Furnish batch certificates for each batch discharged and used in the Work.

1. When air temperature is between 30 deg C (85 deg F) and 32.2 deg C (90 deg F), reduce mixing and delivery time from 1-1/2 hours to 75 minutes; when air temperature is above 32.2 deg C 90 deg F reduce mixing and delivery time to 60 minutes.

B. Project-Site Mixing: Measure, batch, and mix concrete materials and concrete according to ASTM C 94/C 94M. Mix concrete materials in appropriate drum-type batch machine mixer.

1. For concrete mixes of 1 cu. yd. or smaller, continue mixing at least 1-1/2 minutes, but not more than 5 minutes after ingredients are in mixer, before any part of batch is released.

2. For concrete mixes larger than 1 cu. yd., increase mixing time by 15 seconds for each additional 1 cu. yd.

3. Provide batch ticket for each batch discharged and used in the Work, indicating Project identification name and number, date, mixture type, mixing time, quantity, and amount of water added.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine exposed subgrades and subbase surfaces for compliance with requirements for dimensional, grading, and elevation tolerances.

B. Proof-roll prepared subbase surface below concrete pavements with heavy pneumatic-tired equipment to identify soft pockets and areas of excess yielding.

1. Completely proof-roll subbase in one direction and repeat in perpendicular direction.

Limit vehicle speed to (3 mph) 5 km/h.

2. Proof-roll with a loaded 10-wheel tandem-axle dump truck weighing not less than 14 metric tons (15 tons).

CEMENT CONCRETE PAVEMENT 02751 - 11

3. Subbase with soft spots and areas of pumping or rutting exceeding depth of 12 mm (1/2 inch) require correction according to requirements in Division 2 Section "Earthwork."

C. Proceed with concrete pavement operations only after nonconforming conditions have been corrected and subgrade is ready to receive pavement.

3.2 PREPARATION

A. Remove loose material from compacted subbase surface immediately before placing concrete.

3.3 EDGE FORMS AND SCREED CONSTRUCTION

A. Set, brace, and secure edge forms, bulkheads, and intermediate screed guides for pavement to required lines, grades, and elevations. Install forms to allow continuous progress of work and so forms can remain in place at least 24 hours after concrete placement.

B. Clean forms after each use and coat with form-release agent to ensure separation from concrete without damage.

3.4 STEEL REINFORCEMENT

A. General: Comply with CRSI's "Manual of Standard Practice" for fabricating, placing, and supporting reinforcement.

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

C. Arrange, space, and securely tie bars and bar supports to hold reinforcement in position during concrete placement. Maintain minimum cover to reinforcement.

D. Install welded wire reinforcement in lengths as long as practicable. Lap adjoining pieces at least one full mesh, and lace splices with wire. Offset laps of adjoining widths to prevent continuous laps in either direction.

E. Zinc-Coated Reinforcement: Use galvanized steel wire ties to fasten zinc-coated reinforcement. Repair cut and damaged zinc coatings with zinc repair material.

F. Epoxy-Coated Reinforcement: Use epoxy-coated steel wire ties to fasten epoxy-coated reinforcement. Repair cut and damaged epoxy coatings with epoxy repair coating according to ASTM D 3963/D 3963M.

G. Install fabricated bar mats in lengths as long as practicable. Handle units to keep them flat and free of distortions. Straighten bends, kinks, and other irregularities, or replace units as required before placement. Set mats for a minimum 50 mm (2-inch) overlap of adjacent mats.

CEMENT CONCRETE PAVEMENT 02751 - 12

3.5 JOINTS

A. General: Form construction, isolation, 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 pavement, place transverse joints to align with previously placed joints, unless otherwise indicated.

B. Construction Joints: Set construction joints at side and end terminations of pavement and at locations where pavement operations are stopped for more than one-half hour unless pavement terminates at isolation joints.

1. Continue steel reinforcement across construction joints, unless otherwise indicated.

Do not continue reinforcement through sides of pavement strips, unless otherwise indicated.

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

3. Butt Joints: Use bonding agent at joint locations where fresh concrete is placed against hardened or partially hardened concrete surfaces.

4. Keyed Joints: Provide preformed keyway-section forms or bulkhead forms with keys, unless otherwise indicated. Embed keys at least 37.5 mm (1-1/2) inches into concrete.

5. Doweled Joints: Install dowel bars and support assemblies at joints where indicated.

Lubricate or asphalt-coat one-half of dowel length to prevent concrete bonding to one side of joint.

C. Isolation Joints: Form isolation joints of preformed joint-filler strips abutting concrete curbs, catch basins, manholes, inlets, structures, walks, other fixed objects, and where indicated.

1. Locate expansion joints at intervals of 45 meter (50 feet), unless otherwise indicated.

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

3. Terminate joint filler not less than 12.5 mm (1/2 inch) or more than 25 mm (1 inch) below finished surface if joint sealant is indicated.

4. Place top of joint filler flush with finished concrete surface if joint sealant is not indicated.

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

6. 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: Form weakened-plane contraction joints, sectioning concrete into areas as indicated. Construct contraction joints for a depth equal to at least one-fourth of the concrete thickness, as follows to match jointing of existing adjacent concrete pavement:

1. Grooved Joints: Form contraction joints after initial floating by grooving and finishing each edge of joint with grooving tool to a 6 mm (1/4-inch) radius. Repeat grooving of contraction joints after applying surface finishes. Eliminate groover marks on concrete surfaces.

2. Sawed Joints: Form contraction joints with power saws equipped with shatterproof abrasive or diamond-rimmed blades. Cut 3 mm (1/8-inch)- wide joints into concrete

CEMENT CONCRETE PAVEMENT 02751 - 13

when cutting action will not tear, abrade, or otherwise damage surface and before developing random contraction cracks.

3. Doweled Contraction Joints: Install dowel bars and support assemblies at joints where indicated. Lubricate or asphalt coat one-half of dowel length to prevent concrete bonding to one side of joint.

E. Edging: Tool edges of pavement, gutters, curbs, and joints in concrete after initial floating with an edging tool to a 6 mm (1/4-inch) radius. Repeat tooling of edges after applying surface finishes. Eliminate tool marks on concrete surfaces.

3.6 CONCRETE PLACEMENT

A. Inspection: Before placing concrete, inspect and complete formwork installation, steel reinforcement, and items to be embedded or cast in. Notify other trades to permit installation of their work.

B. Remove snow, ice, or frost from subbase surface and reinforcement before placing concrete.

Do not place concrete on frozen surfaces.

C. Moisten subbase to provide a uniform dampened condition at time concrete is placed. Do not place concrete around manholes or other structures until they are at required finish elevation and alignment.

D. Comply with ACI 301 requirements for measuring, mixing, transporting, and placing concrete.

E. Do not add water to concrete during delivery or at Project site.

F. Do not add water to fresh concrete after testing.

G. 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.

H. Consolidate concrete according to ACI 301 by mechanical vibrating equipment supplemented by hand spading, rodding, or tamping.

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.

I. Place concrete in two operations; strike off initial pour for entire width of placement and to the required depth below finish surface. Lay welded wire fabric or fabricated bar mats immediately in final position. Place top layer of concrete, strike off, and screed.

1. Remove and replace concrete that has been placed for more than 15 minutes without being covered by top layer, or use bonding agent if approved by Architect.

J. Screed pavement surfaces with a straightedge and strike off.

CEMENT CONCRETE PAVEMENT 02751 - 14

K. Commence initial floating using bull floats or darbies to impart 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 surface treatments.

L. Curbs and Gutters: When automatic machine placement is used for curb and gutter placement, submit revised mix design and laboratory test results that meet or exceed requirements. Produce curbs and gutters to required cross section, lines, grades, finish, and jointing as specified for formed concrete. If results are not approved, remove and replace with formed concrete.

M. Slip-Form Pavers: When automatic machine placement is used for pavement, submit revised mix design and laboratory test results that meet or exceed requirements. Produce pavement to required thickness, lines, grades, finish, and jointing as required for formed pavement.

1. Compact subbase and prepare subgrade of sufficient width to prevent displacement of paver machine during operations.

N. When adjoining pavement lanes are placed in separate pours, do not operate equipment on concrete until pavement has attained 85 percent of its 28-day compressive strength.

O. 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 4.deg C (40 deg F), uniformly heat water and aggregates before mixing to obtain a concrete mixture temperature of not less than 10 deg C (50 deg F) and not more than 27 deg C (80 deg F) at point of placement.

2. Do not use frozen materials or materials containing ice or snow.

3. Do not use calcium chloride, salt, or other materials containing antifreeze agents or chemical accelerators unless otherwise specified and approved in mix designs.

P. Hot-Weather Placement: Comply with ACI 301 and as follows when hot-weather conditions exist:

1. Cool ingredients before mixing to maintain concrete temperature below 90 deg F at time of placement. 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 steel reinforcement with water-soaked burlap so steel temperature will not exceed ambient air temperature immediately before embedding in concrete.

3. Fog-spray forms, steel reinforcement, and subgrade just before placing concrete.

Keep subgrade moisture uniform without standing water, soft spots, or dry areas.

3.7 FLOAT FINISHING

A. General: Do not add water to concrete surfaces during finishing operations.

CEMENT CONCRETE PAVEMENT 02751 - 15

B. Float Finish: Begin the second floating operation when bleed-water sheen has disappeared and 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. Refloat surface immediately to uniform granular texture.

1. Burlap Finish: Drag a seamless strip of damp burlap across float-finished concrete, perpendicular to line of traffic, to provide a uniform, gritty texture.

2. Medium-to-Fine-Textured Broom Finish: Draw a soft bristle broom across float-finished concrete surface perpendicular to line of traffic to provide a uniform, fine-line texture.

3. Medium-to-Coarse-Textured Broom Finish: Provide a coarse finish by striating float-finished concrete surface 1.5 mm (1/16) to 3 mm (1/8) inch deep with a stiff-bristled broom, perpendicular to line of traffic.

3.8 CONCRETE PROTECTION AND CURING

A. General: Protect freshly placed concrete from premature drying and excessive cold or hot temperatures.

B. Comply with ACI 306.1 for cold-weather protection.

C. Evaporation Retarder: Apply evaporation retarder to concrete surfaces if hot, dry, or windy conditions cause moisture loss approaching 1.0 kg/sq meter (0.2 lb/sq. ft). x h before and during finishing operations. Apply according to manufacturers written instructions after placing, screeding, and bull floating or darbying concrete, but before float finishing.

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

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

1. Moist Curing: Keep surfaces continuously moist for not less than seven 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 300 mm (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 300 mm (12 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. Recoat areas subjected to heavy rainfall within three hours after initial application. Maintain continuity of coating and repair damage during curing period.

CEMENT CONCRETE PAVEMENT 02751 - 16

3.9 PAVEMENT TOLERANCES

A. Comply with tolerances of ACI 117 and as follows:

1. Elevation: 6 mm (1/4 inch).

2. Thickness: Plus 8 mm (3/8 inch), minus 6 mm (1/4 inch).

3. Surface: Gap below 10-foot- 3-m- long, unleveled straightedge not to exceed 6 mm

(1/4 inch).

4. Lateral Alignment and Spacing of Tie Bars and Dowels: 25 mm (1 inch).

5. Vertical Alignment of Tie Bars and Dowels: 6 mm (1/4 inch).

6. Alignment of Tie-Bar End Relative to Line Perpendicular to Pavement Edge: 12 mm

(1/2 inch)

7. Alignment of Dowel-Bar End Relative to Line Perpendicular to Pavement Edge:

Length of dowel 6 mm (1/4 inch) per 100 mm (12 inches).

8. Joint Spacing: 75 mm (3 inches).

9. Contraction Joint Depth: Plus 6 mm (1/4 inch) no minus.

10. Joint Width: Plus 3 mm (1/8 inch), no minus.

3.10 WHEEL STOPS

A. Install wheel stops in bed of adhesive applied as recommended by manufacturer.

B. Securely attach wheel stops to paving with not less than two galvanized-steel dowels located at one-quarter to one-third points. Install dowels in drilled holes in the paving and bond dowels to wheel stop. Recess head of dowel beneath top of wheel stop.

10.

3.103.11 FIELD QUALITY CONTROL

A. Testing Agency: Engage a qualified independent testing and inspecting agency to perform field tests and inspections and prepare test reports.

B. Testing Services: Testing of composite samples of fresh concrete obtained according to ASTM C 172 shall be performed according to the following requirements:

1. Testing Frequency: Obtain at least 1 composite sample for each 90 cu meter (100 cu.

yd.) or fraction thereof of each concrete mix placed each day.

a. When frequency of testing will provide fewer than five compressive-strength tests for each concrete mixture, testing shall be conducted from at least five randomly selected batches or from each batch if fewer than five are used.

2. Slump: ASTM C 143/C 143M; one test at point of placement for each composite sample, but not less than one test for each day's pour of each concrete mix. Perform additional tests when concrete consistency appears to change.

3. Air Content: ASTM C 231, pressure method; one test for each composite sample, but not less than one test for each day's pour of each concrete mix.

CEMENT CONCRETE PAVEMENT 02751 - 17

4. Concrete Temperature: ASTM C 1064; one test hourly when air temperature is 4 deg C (40 deg F) and below and when 27 deg C (80 deg F) and above, and one test for each composite sample.

5. Compression Test Specimens: ASTM C 31/C 31M; cast and laboratory cure one set of three standard cylinder specimens for each composite sample.

6. Compressive-Strength Tests: ASTM C 39/C 39M; test 1 specimen at 7 days and 2 specimens at 28 days.

a. A compressive-strength test shall be the average compressive strength from 2 specimens obtained from same composite sample and tested at 28 days.

C. Strength of each concrete mix will be satisfactory if average of any 3 consecutive compressive-strength tests equals or exceeds specified compressive strength and no compressive-strength test value falls below specified compressive strength by more than 3500 kPa (500 psi).

D. Test results shall be reported in writing to Architect, concrete manufacturer, and Contractor within 48 hours of testing. Reports of compressive-strength tests shall contain Project identification name and number, date of concrete placement, name of concrete testing and inspecting agency, location of concrete batch in Work, design compressive strength at 28 days, concrete mixture proportions and materials, compressive breaking strength, and type of break for both 7- and 28-day tests.

E. Nondestructive Testing: Impact hammer, sonoscope, or other nondestructive device may be permitted by Architect but will not be used as sole basis for approval or rejection of concrete.

F. Additional Tests: Testing and inspecting agency shall make additional tests of concrete when test results indicate that slump, air entrainment, compressive strengths, or other requirements have not been met, as directed by Architect.

G. Remove and replace concrete pavement where test results indicate that it does not comply with specified requirements.

H. Additional testing and inspecting, at Contractor's expense, will be performed to determine compliance of replaced or additional work with specified requirements.

3.113.12 REPAIRS AND PROTECTION

A. Remove and replace concrete pavement that is broken, damaged, or defective or that does not comply with requirements in this Section.

B. Drill test cores, where directed by 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 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.

CEMENT CONCRETE PAVEMENT 02751 - 18

D. Maintain concrete pavement free of stains, discoloration, dirt, and other foreign material.

Sweep concrete pavement not more than two days before date scheduled for Substantial Completion inspections.

END OF SECTION 02751

NOAA - La Jolla Laboratory Replacement October 9 December 18, 2009

UNIT MASONRY ASSEMBLIES 04810 -1

SECTION 04810 - UNIT MASONRY ASSEMBLIES

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General Conditions and Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Concrete masonry units (CMU's).

B. Related Sections:

1. Division 5 Section "Metal Fabrications" for furnishing steel lintels and shelf angles for unit masonry.

2. Division 7 Section "Sheet Metal Flashing and Trim" for furnishing manufactured reglets installed in masonry joints.

1.3 SUBMITTALS

A. Product Data: For each type of product indicated.

B. LEED Submittals:

1. Product Data for LEED Credits MR 4.1 and 4.2, Recycled Content: For products having recycled content, documentation indicating percentages by weight of postconsumer and preconsumer recycled content; include statement indicating costs for each product having recycled content.

2. Product Certificates for LEED Credits MR 5.1 and Credit MR 5.2, Regional Materials:

For products and materials required to comply with requirements for regional materials indicating location and distance from Project of material manufacturer and point of extraction, harvest, or recovery for each raw material. Include statement indicating cost for each regional material and the fraction by weight that is considered regional.

3. Product…