Architect’s Seal: JMZ Project No. 2014 14 May 2024

Bid Set #_____

Project Manual Division 02 through Division 14

Volume 2 of 3

80 Vandenburgh Ave

Troy, New York 12180

Technology Quad – Phase 1

Applied Technologies Education Center (ATEC)

EDA Award Number: ED23PHI0G0159

CONFORMED BID SET

Hudson Valley Community College

JMZ Project No. 2014

00 01 10 - 1 TABLE OF CONTENTS

SECTION 00 01 10

TABLE OF CONTENTS

VOLUME 1

00 01 01 PROJECT TITLE PAGE

00 01 10 TABLE OF CONTENTS

00 01 15 LIST OF DRAWING SHEETS

DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

Information for Bidders

00 11 16 NOTICE TO BIDDERS

00 21 13 INSTRUCTIONS TO BIDDERS

Procurement Forms and Supplements

00 41 00 BID FORMS

00 43 00 BID FORM SUPPLEMENTS

00 43 13 BID SECURITY FORMS

00 43 25 BID PERIOD SUBSTITUTION REQUEST FORM

00 45 13 BIDDER'S QUALIFICATIONS

Contracting Forms and Supplements

00 52 00 AGREEMENT FORM

Project Forms

00 61 13 PERFORMANCE AND PAYMENT BOND FORM

General Provisions of the Agreement

00 72 00 GENERAL CONDITIONS

00 73 00 SUPPLEMENTARY CONDITIONS

00 73 16 INSURANCE REQUIREMENTS

00 73 36 EQUAL EMPLOYMENT OPPORTUNITY REQUIREMENTS

00 73 43 WAGE RATE REQUIREMENTS

Available Project Information

00 81 24.33 ENVIRONMENTAL IMPACT MITIGATION REPORT

00 81 32 GEOTECHNICAL DATA

DIVISION 01 – GENERAL REQUIREMENTS

01 11 00 SPECIAL PROVISIONS

01 12 00 MULTIPLE CONTRACT SUMMARY

01 20 00 PRICE AND PAYMENT PROCEDURES

01 21 00 ALLOWANCES

01 22 00 UNIT PRICES

01 23 00 ALTERNATES

01 25 00 SUBSTITUTION PROCEDURES

01 30 00 ADMINISTRATIVE REQUIREMENTS

01 35 73 DELEGATED DESIGN PROCEDURES

01 40 00 QUALITY REQUIREMENTS

-- STATEMENT OF SPECIAL INSPECTIONS

01 42 00 REFERENCES

01 50 00 TEMPORARY FACILITIES AND CONTROLS

01 51 00 TEMPORARY UTILITIES

01 57 19 TEMPORARY ENVIRONMENTAL CONTROLS

01 60 00 PRODUCT REQUIREMENTS

01 61 16 VOLATILE ORGANIC COMPOUND (VOC) CONTENT RESTRICTIONS

01 61 16.01 ACCESSORY MATERIAL VOC CONTENT CERTIFICATION FORM

01 70 00 EXECUTION AND CLOSEOUT REQUIREMENTS

01 71 23 FIELD ENGINEERING

TABLE OF CONTENTS 00 01 10 - 2

01 74 19 CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL

01 76 10 TEMPORARY PROTECTIVE COVERINGS

01 78 00 CLOSEOUT SUBMITTALS

01 79 00 DEMONSTRATION AND TRAINING

01 91 13 GENERAL COMMISSIONING REQUIREMENTS

VOLUME 2

00 01 01 PROJECT TITLE PAGE

00 01 10 TABLE OF CONTENTS

00 01 15 LIST OF DRAWING SHEETS

DIVISION 02 - EXISTING CONDITIONS

02 33 13 UNDERGROUND UTILITY LOCATOR SERVICE

DIVISION 03 – CONCRETE

03 30 00 CAST-IN-PLACE CONCRETE

03 35 11 CONCRETE FLOOR FINISHES

03 45 00 PRECAST ARCHITECTURAL CONCRETE

DIVISION 04 – MASONRY

04 05 11 MASONRY MORTARING AND GROUTING

04 20 00 UNIT MASONRY

04 26 13 MASONRY VENEER

04 72 00 CAST STONE MASONRY

DIVISION 05 – METALS

05 12 00 STRUCTURAL STEEL

05 12 13 ARCHITECTURALLY-EXPOSED STRUCTURAL STEEL FRAMING

05 21 00 STEEL JOIST FRAMING

05 31 00 STEEL DECKING

05 40 00 COLD-FORMED METAL FRAMING

05 50 00 METAL FABRICATIONS

05 51 00 METAL STAIRS

05 51 33 METAL LADDERS

DIVISION 06 - WOOD, PLASTICS, AND COMPOSITES

06 10 00 ROUGH CARPENTRY

06 20 00 FINISH CARPENTRY

06 41 00 ARCHITECTURAL WOOD CASEWORK

06 83 16 FIBERGLASS REINFORCED PANELING

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

07 05 53 FIRE AND SMOKE ASSEMBLY IDENTIFICATION

07 11 13 BITUMINOUS DAMPPROOFING

07 21 00 THERMAL INSULATION

07 21 19 FOAMED-IN-PLACE INSULATION

07 27 00 AIR BARRIERS

07 42 13.19 INSULATED METAL WALL PANELS

07 42 93 SOFFIT PANELS

07 53 00 ELASTOMERIC MEMBRANE ROOFING

07 62 00 SHEET METAL FLASHING AND TRIM

07 71 00 ROOF SPECIALTIES

07 71 23 MANUFACTURED GUTTERS AND DOWNSPOUTS

07 72 00 ROOF ACCESSORIES

07 72 73 VEGETATED ROOF SYSTEMS

07 76 00 ROOF PAVERS

07 81 00 APPLIED FIRE PROTECTION

07 81 23 INTUMESCENT FIRE PROTECTION

07 84 00 FIRESTOPPING

00 01 10 - 3 TABLE OF CONTENTS

07 92 00 JOINT SEALANTS

DIVISION 08 – OPENINGS

08 11 13 HOLLOW METAL DOORS AND FRAMES

08 11 16 ALUMINUM DOORS AND FRAMES

08 14 16 FLUSH WOOD DOORS

08 31 00 ACCESS DOORS AND PANELS

08 33 23 OVERHEAD COILING DOORS

08 33 36 SIDE COILING GRILLES

08 34 73 SOUND CONTROL DOOR ASSEMBLIES

08 36 13 SECTIONAL DOORS

08 43 13 ALUMINUM-FRAMED STOREFRONTS

08 44 13 GLAZED ALUMINUM CURTAIN WALLS

08 44 35 PROTECTIVE FRAMED GLAZING ASSEMBLIES

08 45 23 FIBERGLASS SANDWICH PANEL ASSEMBLIES

08 51 13 ALUMINUM WINDOWS

08 56 73 SOUND CONTROL WINDOWS

08 71 00 DOOR HARDWARE

08 80 00 GLAZING

08 88 13 FIRE-RATED GLAZING

08 91 00 LOUVERS

DIVISION 09 – FINISHES

09 05 61 COMMON WORK RESULTS FOR FLOORING PREPARATION

09 21 16 GYPSUM BOARD ASSEMBLIES

09 30 00 TILING

09 51 00 ACOUSTICAL CEILINGS

09 54 13 OPEN METAL MESH CEILINGS

09 54 26 SUSPENDED WOOD CEILINGS

09 65 00 RESILIENT FLOORING

09 67 00 FLUID-APPLIED FLOORING

09 68 13 TILE CARPETING

09 84 30 SOUND-ABSORBING WALL AND CEILING UNITS

09 91 13 EXTERIOR PAINTING

09 91 23 INTERIOR PAINTING

09 93 00 STAINING AND TRANSPARENT FINISHING

09 96 00 HIGH-PERFORMANCE COATINGS

DIVISION 10 – SPECIALTIES

10 11 00 VISUAL DISPLAY UNITS

10 14 19 DIMENSIONAL LETTER SIGNAGE

10 14 23 PANEL SIGNAGE

10 14 53 SITE SIGNAGE

10 21 13.19 PLASTIC TOILET COMPARTMENTS

10 22 13 WIRE MESH PARTITIONS

10 22 39 FOLDING PANEL PARTITIONS

10 26 00 WALL AND DOOR PROTECTION

10 28 00 TOILET ACCESSORIES

10 28 13.11 UNDER-LAVATORY PIPE AND SUPPLY COVERS

10 44 00 FIRE PROTECTION SPECIALTIES

10 51 26 PLASTIC LOCKERS

10 71 13.43 FIXED SUN SCREENS

DIVISION 11 – EQUIPMENT

11 53 00 LABORATORY EQUIPMENT

11 81 29 FACILITY FALL PROTECTION

TABLE OF CONTENTS 00 01 10 - 4

DIVISION 12 – FURNISHINGS

12 24 00 WINDOW SHADES

12 31 00 MANUFACTURED METAL CASEWORK

12 36 00 COUNTERTOPS

12 48 13 ENTRANCE FLOOR MATS AND FRAMES

DIVISION 14 - CONVEYING EQUIPMENT

14 21 00 ELECTRIC TRACTION ELEVATORS

VOLUME 3

00 01 01 PROJECT TITLE PAGE

00 01 10 TABLE OF CONTENTS

00 01 15 LIST OF DRAWING SHEETS

DIVISION 21 – FIRE PROTECTION

21 05 00 COMMON WORK RESULTS FOR FIRE SUPPRESSION

21 13 13 SPRINKLER AND STANDPIPE SYSTEMS

DIVISION 22 – PLUMBING

22 05 00 COMMON WORK RESULTS FOR PLUMBING

22 05 19 METERS AND GAGES FOR PLUMBING PIPING

22 05 23 GENERAL-DUTY VALVES FOR PLUMBING PIPING

22 05 29 HANGERS AND SUPPORTS FOR PLUMBING PIPING AND EQUIPMENT

22 05 53 IDENTIFICATION FOR PLUMBING PIPING AND EQUIPMENT

22 07 00 PLUMBING INSULATION

22 08 00 PLUMBING COMMISSIONING

22 11 16 DOMESTIC WATER PIPING

22 11 19 DOMESTIC WATER PIPING SPECIALTIES

22 13 16 SANITARY WASTE AND VENT PIPING

22 13 19 SANITARY WASTE PIPING SPECIALTIES

22 14 13 FACILITY STORM DRAINAGE PIPING

22 14 23 STORM DRAINAGE PIPING SPECIALTIES

22 14 29 SUMP PUMPS

22 15 20 NATURAL GAS PIPING

22 34 00 FUEL-FIRED DOMESTIC WATER HEATERS

22 40 00 PLUMBING FIXTURES

22 45 00 EMERGENCY PLUMBING FIXTURES

22 47 00 DRINKING FOUNTAINS AND WATER COOLERS

22 62 13 COMPRESSED AIR PIPING

DIVISION 23 - HEATING, VENTILATING, AND AIR CONDITIONING (HVAC)

23 05 00 COMMON WORK RESULTS FOR HVAC

23 05 13 COMMON MOTOR REQUIREMENTS FOR HVAC EQUIPMENT

23 05 19 METERS AND GAGES FOR HVAC PIPING

23 05 23 GENERAL-DUTY VALVES FOR HVAC PIPING

23 05 25 EQUIPMENT AND ACCESSORIES FOR HVAC PIPING

23 05 29 HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT

23 05 48 VIBRATION ISOLATION FOR HVAC

23 05 53 IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

23 05 93 TESTING, ADJUSTING, AND BALANCING FOR HVAC

23 07 00 HVAC INSULATION

23 07 01 REMOVABLE INSULATION JACKETS

23 08 00 COMMISSIONING OF HVAC SYSTEMS

23 09 00 INSTRUMENTATION AND CONTROL FOR HVAC

23 09 93 SEQUENCE OF OPERATIONS FOR HVAC CONTROLS

23 21 13 HVAC PIPING

23 21 23 HYDRONIC PUMPS

23 23 00 REFRIGERANT PIPING

00 01 10 - 5 TABLE OF CONTENTS

23 25 00 HVAC WATER TREATMENT

23 25 16 HVAC WATER TREATMENT OPEN LOOP

23 31 13 METAL DUCTS

23 33 00 AIR DUCT ACCESSORIES

23 34 23 HVAC POWER VENTILATORS

23 36 00 AIR TERMINAL UNITS

23 37 13 DIFFUSERS, REGISTERS, AND GRILLES

23 52 16 CONDENSING BOILERS

23 54 40 MULTIPLE EVAPORATOR DX SYSTEMS

23 57 00 HEAT EXCHANGERS FOR HVAC

23 64 16 CENTRIFUGAL WATER CHILLERS

23 65 00 COOLING TOWERS

23 74 13 PACKAGED, OUTDOOR, CENTRAL-STATION AIR-HANDLING UNITS

23 74 33 PACKAGED, OUTDOOR, HEATING ONLY MAKEUP AIR-UNITS

23 82 39 UNIT HEATERS

DIVISION 26 – ELECTRICAL

26 05 00 COMMON WORK RESULTS FOR ELECTRICAL

26 05 13 MEDIUM VOLTAGE CABLE AND TERMINATIONS

26 05 19 LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

26 05 23 CONTROL-VOLTAGE ELECTRICAL POWER CABLES

26 05 26 GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS

26 05 29 HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS

26 05 33 RACEWAY AND BOXES FOR ELECTRICAL SYSTEMS

26 05 53 IDENTIFICATION FOR ELECTRICAL SYSTEMS

26 05 70 POWER SYSTEM STUDIES

26 08 80 MEDIUM VOLTAGE POWER TESTING

26 09 23 LIGHTING CONTROL DEVICES

26 12 19 PAD MOUNTED, LIQUID FILLED, MEDIUM VOLTAGE TRANSFORMERS

26 13 29 MEDIUM VOLTAGE, PAD MOUNTED SWITCHGEAR

26 22 00 LOW-VOLTAGE TRANSFORMERS

26 24 13 SWITCHBOARDS

26 24 16 PANELBOARDS

26 27 26 WIRING DEVICES

26 28 13 FUSES

26 28 16 ENCLOSED SWITCHES AND CIRCUIT BREAKERS

26 29 23 VARIABLE-FREQUENCY MOTOR CONTROLLERS

26 44 00 HEAT TRACING FOR PIPING

26 51 00 INTERIOR LIGHTING

26 56 00 EXTERIOR LIGHTING

DIVISION 27 - COMMUNICATIONS

27 05 00 COMMON WORK RESULTS FOR COMMUNICATIONS

27 11 00 COMMUNICATIONS EQUIPMENT ROOM FITTINGS

27 13 00 COMMUNICATIONS BACKBONE CABLING

27 15 00 COMMUNICATIONS HORIZONTAL CABLING

DIVISION 28 – ELECTRONIC SAFETY AND SECURITY

28 13 00 ACCESS CONTROL SYSTEM

28 23 00 VIDEO SURVEILLANCE

28 31 11 DIGITAL, ADDRESSABLE FIRE-ALARM SYSTEM

DIVISION 31 – EARTHWORK

31 10 00 SITE CLEARING

31 20 00 SITE EARTHWORK

31 20 01 EARTHWORK FOR STRUCTURES

TABLE OF CONTENTS 00 01 10 - 6

DIVISION 32 - EXTERIOR IMPROVEMENTS

32 12 16 ASPHALT PAVING

32 13 13 PORTLAND CEMENT CONCRETE

32 16 40 GRANITE CURB

32 31 13 CHAIN LINK FENCE

32 33 00 SITE FURNISHINGS

32 91 13 SOIL PREPARATION

32 92 00 TURF

32 93 00 LANDSCAPE PLANTS

DIVISION 33 – UTILITIES

33 10 00 WATER DISTRIBUTION PIPING

33 30 00 SANITARY SEWER SYSTEM

33 41 00 STORM DRAINAGE SYSTEM

33 46 00 SUBDRAINAGE

33 71 16.33 WOOD ELECTRICAL UTILITY POLES

END OF TABLE OF CONTENTS

Hudson Valley Community College JMZ Project No. 2014

00 01 15 - 1 LIST OF DRAWING SHEETS

SECTION 00 01 15

LIST OF DRAWING SHEETS

PART 1 GENERAL

1.01 DRAWINGS

A. The Contract Drawings, which accompany this Project Manual and form a part of the Contract Documents, are listed on the Title Sheet of the Drawings.

PART 2 PRODUCTS - NOT USED

PART 3 EXECUTION - NOT USED

END OF SECTION

Technology Quad - Phase 1

02 33 13 - 1 UNDERGROUND UTILITY

LOCATOR SERVICE

SECTION 02 33 13

UNDERGROUND UTILITY LOCATOR SERVICE

PART 1 GENERAL

1.01 RELATED WORK SPECIFIED ELSEWHERE

A. Field Engineering: Section 01 71 23.

1.02 REFERENCES

A. American Society of Civil Engineers, CI/ASCE 38-02, “Standard Guideline for the Collection and Depiction of Existing Subsurface Utility Data.”

B. American Public Works Association, "Uniform Color Code.”

1.03 DEFINITIONS

A. Utility Quality Levels:

1. Level A: Precise horizontal and vertical location of utilities obtained by the actual exposure (or verification of previously exposed and surveyed utilities) and subsequent measurement of subsurface utilities, usually at a specific point. Minimally intrusive excavation equipment is typically used to minimize the potential for utility damage. A precise horizontal and vertical location, as well as other utility attributes, is shown on plan documents. Accuracy is typically set to 15-mm vertical and to applicable horizontal survey and mapping accuracy as defined or expected by the project owner.

2. Level B: Information obtained through the application of appropriate surface geophysical methods to determine the existence and approximate horizontal position of subsurface utilities. Quality level B data should be reproducible by surface geophysics at any point of their depiction. This information is surveyed to applicable tolerances defined by the project and reduced onto plan documents.

3. Level C: Information obtained by surveying and plotting visible above-ground utility features and by using professional judgment in correlating this information to quality level D information.

4. Level D: Information derived from existing records or oral recollections.

1.04 DESCRIPTION

A. Retain an independent utility locator service company to field locate and mark existing underground utilities and service connections. The word "independent" as used above means a person not in the regular employment of the Contractor or having any vested interest in the Contractor's business.

1. Level B locator service shall be performed in all project areas where excavations, regrading of the ground surface, and penetrations of the ground surface are to be performed.

a. Contractor shall include a minimum of 16 hours of Level A locator service to locate underground utilities as identified on the contract drawings or as identified during the Level B investigation that require more specific location, invert elevation, size, etc.

Level A investigation shall only be performed at locations where shown or as directed.

b. In heavy metal areas, such as near perimeter fences, ground penetrating radar shall be used to determine the location of underground utilities. The use of equipment that induce a tracing signal along the utility path (such as a Metrotech unit) can cause false readings, shall not be used within five feet of fences.

2. The Level A investigation shall be performed as follows:

a. Hand excavation may be performed for depths of three feet or less.

b. Vacuum excavation shall be performed at depths greater than three feet.

c. All excavation test pits shall be backfilled by close of business that day.

JMZ Project No. 2014 Hudson Valley Community College

UNDERGROUND UTILITY

02 33 13 - 2

3. Support and protect all utilities and service connections to remain in place.

4. The locator service shall field locate and mark underground utilities and service connections prior to excavation.

5. The contractor shall be responsible for coordinating the extent of the areas of subsurface investigation required to locate all underground utilities and service connections in the areas of excavation.

6. All costs associated with the repair of underground utilities and service connections hit/damaged during the investigative work shall be the responsibility of the contractor.

7. Utility location services shall be in accordance with the provisions of CIASCE 38-02, “Standard Guideline for the Collection and Depiction of Existing Subsurface Utility Data.”

1.05 SUBMITTALS

A. Quality Control Submittals:

1. Submit detailed experience and qualification information about the underground utility locator service company and the persons that will be performing the Work. Detailed experience and qualification information shall include:

a. Minimum of five (5) years experience in field locating, marking and staking out of existing underground utilities and service connections.

1) Qualifying Experience: Project information of 5 similar projects, which the locator service company, had worked on during the past 5 years. Information shall include for each project:

(a) Name and Address of project.

(b) Dates worked on project.

(c) Name and telephone Number of contact person at the project site for which the locator service was performed.

b. Description of types of utility locator equipment (investigation equipment) that company will utilize to perform the underground utility investigation.

c. Names of persons that the persons that will be performing the Work, including the number of years of experience and training that the persons have in the use of the equipment. Include copy of training certificates for locator equipment proving the person performing the locator service are trained on the equipment being used.

2. Submit Quality Control Submittals within 10 days of contract award.

B. Investigative Report:

1. Submit detailed written report and scaled drawings of the subsurface investigation, documenting all underground utilities and service connections located and identified.

a. All documentation shall be referenced to existing data (horizontal and vertical) previously established.

b. Provide three (3) paper copies and one (1) electronic copy of detailed written report and drawings.

2. Submit Investigative Report at least two weeks prior to advancing construction within the scheduled areas of excavation within the project site.

1.06 COORDINATION AND SCHEDULING

A. Coordinate the Work to determine the extent of the areas of subsurface investigation required to locate all underground utilities and service connections in the areas of excavation.

02 33 13 - 3 UNDERGROUND UTILITY

B. Coordinate the Work with the Director’s Representative to minimize utility disruptions and facility operations. Provide a schedule for the Work required to the Director’s Representative for approval. Upon approval of the schedule, notify the Director’s Representative a minimum of three (3) working days prior to performing the Work.

C. Within the areas of excavation, all underground utilities and service connections shall be field located and their locations marked at least two (2) weeks prior to the performance of the required excavation work.

PART 2 PRODUCTS (NOT USED)

PART 3 EXECUTION

3.01 WORK AREAS AND PERFORMANCE

A. If any underground utilities and service connections are hit or damaged during the Work, immediately inform the Director’s Representative for directions on how to proceed.

B. The utility locator service investigative work, field location and marking of underground utilities and service connections and submission of the investigative report must be completed before any excavation work can begin.

1. Contractor shall maintain markings throughout the contract duration or until a time when directed (in writing) by the Director’s Representative that maintaining of the markings are no longer required.

C. Provide subsurface investigation information, detailed written report and drawings of the subsurface investigation, documenting all underground utilities and service connections located and identified, prior to the performance of the required excavation work.

D. If during the Level B investigations, unknown underground utilities are discovered, the Director’s Representative shall be notified as soon as possible or before the close of that business day.

E. Field Marking of underground utilities shall follow the American Public Works Association (APWA) uniform color code:

1. White: Proposed Excavation.

2. Pink: Temporary Survey Markings.

3. Red: Electric power lines, cables, conduit and lighting cables.

4. Yellow: Gas, oil, steam, petroleum and gaseous material.

5. Orange: Communications, alarm, signal lines, cables or conduit.

6. Blue: Potable water.

7. Purple: Reclaimed water, irrigation and slurry lines.

8. Green: Sewer and drain lines.

03 30 00 - 1 CAST-IN-PLACE CONCRETE

SECTION 03 30 00

CAST-IN-PLACE CONCRETE

PART 1 GENERAL

1.01 RELATED DOCUMENTS

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

1.02 SUMMARY

A. Section includes cast-in-place concrete, including formwork, reinforcement, concrete materials, mixture design, placement procedures, and finishes, for the following:

1. Footings.

2. Foundation walls.

3. Slabs-on-grade.

4. Slabs on metal deck.

B. Related Sections:

1. Section 31 20 00 "Earthwork for Structures" for subbase fill under slabs-on-grade.

2. Section 03 35 11 “Concrete Floor Finishes”.

1.03 DEFINITIONS

A. Cementitious Materials: Portland cement alone or in combination with one or more of the following: blended hydraulic cement, fly ash and other pozzolans, ground granulated blast-furnace slag, and silica fume; subject to compliance with requirements.

1.04 ACTION SUBMITTALS

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

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

1. Indicate amounts of mixing water to be withheld for later addition at Project site.

C. Steel Reinforcement Shop Drawings: Placing drawings that detail fabrication, bending, and placement. Include bar sizes, lengths, material, grade, bar schedules, stirrup spacing, bent bar diagrams, bar arrangement, splices and laps, mechanical connections, tie spacing, hoop spacing, and supports for concrete reinforcement.

1.05 INFORMATIONAL SUBMITTALS

A. Material Certificates: For each of the following, signed by manufacturers:

1. Cementitious materials.

2. Admixtures.

3. Steel reinforcement and accessories.

4. Curing compounds.

5. Semi rigid joint filler.

6. Joint-filler strips.

7. Vapor Retarder.

8. Waterstops.

9. Water Vapor Reducing Admixture.

B. Material Test Reports: For the following, from a qualified testing agency, indicating compliance with requirements:

CAST-IN-PLACE CONCRETE 03 30 00 - 2

1. Aggregates.

1.06 QUALITY ASSURANCE

A. Installer Qualifications: A qualified installer who employs on Project personnel qualified as ACI-certified Flatwork Technician and Finisher and a supervisor who is an ACI-certified Concrete Flatwork Technician.

B. Manufacturer Qualifications: A firm experienced in manufacturing ready-mixed concrete products and that complies with ASTM C 94/C 94M requirements for production facilities and equipment.

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

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

D. Source Limitations: Obtain each type or class of cementitious material of the same brand from the same manufacturer's plant, obtain aggregate from single source, and obtain admixtures from single source from single manufacturer.

E. ACI Publications: Comply with the following unless modified by requirements in the Contract Documents:

1. ACI 301, "Specifications for Structural Concrete," Sections 1 through 5.

2. ACI 117, "Specifications for Tolerances for Concrete Construction and Materials."

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

G. Preinstallation Conference for Slab Concrete: Conduct conference at Project site.

1. Before submitting design mixtures, review concrete design mixture and examine procedures for ensuring quality of concrete materials. Require representatives of each entity directly concerned with cast-in-place concrete to attend, including the following:

a. Contractor's superintendent.

b. Independent testing agency responsible for concrete design mixtures.

c. Ready-mix concrete manufacturer.

d. Concrete subcontractor.

e. Special concrete finish subcontractor.

2. Review special inspection and testing and inspecting agency procedures for field quality control, concrete finishes and finishing, cold- and hot-weather concreting procedures, curing procedures, construction contraction and isolation joints, and joint-filler strips, semirigid joint fillers, vapor-retarder installation, steel reinforcement installation, floor and slab flatness and levelness measurement, and concrete protection.

1.07 DELIVERY, STORAGE, AND HANDLING

A. Steel Reinforcement: Deliver, store, and handle steel reinforcement to prevent bending and damage.

PART 2 PRODUCTS

2.01 FORM-FACING MATERIALS

A. Smooth-Formed Finished Concrete: Form-facing panels that will provide continuous, true, and smooth concrete surfaces. Furnish in largest practicable sizes to minimize number of joints.

1. Plywood, metal, or other approved panel materials.

B. Rough-Formed Finished Concrete: Plywood, lumber, metal, or another approved material.

Provide lumber dressed on at least two edges and one side for tight fit.

03 30 00 - 3 CAST-IN-PLACE CONCRETE

C. Chamfer Strips: Wood, metal, PVC, or rubber strips, 3/4 by 3/4 inch, minimum.

D. Rustication Strips: Wood, metal, PVC, or rubber strips, kerfed for ease of form removal.

E. 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.

1. Formulate form-release agent with rust inhibitor for steel form-facing materials.

F. Form Ties: Factory-fabricated, removable or snap-off metal or glass-fiber-reinforced plastic form ties designed to resist lateral pressure of fresh concrete on forms and to prevent spalling of concrete on removal.

2.02 STEEL REINFORCEMENT

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

B. Epoxy-Coated Reinforcing Bars: ASTM A 615/A 615M, Grade 60, deformed bars, ASTM A 775/A 775M or ASTM A 934/A 934M, epoxy coated, with less than 2 percent damaged coating in each 12-inch bar length.

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

2.03 REINFORCEMENT ACCESSORIES

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

B. Epoxy Repair Coating: Liquid, two-part, epoxy repair coating; compatible with epoxy coating on reinforcement and complying with ASTM A 775/A 775M.

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

1. For concrete surfaces exposed to view where legs of wire bar supports contact forms, use CRSI Class 1 plastic-protected steel wire or CRSI Class 2 stainless-steel bar supports.

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

2.04 CONCRETE MATERIALS

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

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

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

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

B. Normal-Weight Aggregates: ASTM C 33, coarse aggregate or better, graded. Provide aggregates from a single source.

1. Maximum Coarse-Aggregate Size: 1-1/2 inches nominal.

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

C. Water: ASTM C 94/C 94M and potable.

2.05 ADMIXTURES

A. Air-Entraining Admixture: ASTM C 260.

B. Chemical Admixtures: Provide admixtures certified by manufacturer to be compatible with other admixtures and that will not contribute water-soluble chloride ions exceeding those permitted in hardened concrete. Do not use calcium chloride or admixtures containing calcium chloride.

CAST-IN-PLACE CONCRETE 03 30 00 - 4

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. Water Vapor Reducing Admixture.

a. Sodium silicate-based admixtures for cementitious materials designed to utilize free water in concrete to form calcium silicate hydrate to close capillaries to reduce moisture vapor emission.

b. Products:

1) Barrier-1 Inc.: Barrier-1.

2) SPG Specialty Products Group: Vapor Lock 20/20.

3) ISE Logik Industries: MVRA 900.

2.06 LIQUID FLOOR TREATMENTS

A. VOC Content: Liquid floor treatments shall have a VOC content of 200 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24).

B. Penetrating Liquid Floor Treatment: Clear, chemically reactive, waterborne solution of inorganic silicate or siliconate materials and proprietary components; odorless; that penetrates, hardens, and densifies concrete surfaces.

1. Products: Subject to compliance with requirements, provide one of the following:

a. ChemMasters; Chemisil Plus.

b. Conspec by Dayton Superior; Intraseal.

c. Curecrete Distribution Inc.; Ashford Formula.

d. Dayton Superior Corporation; Day-Chem Sure Hard (J-17).

e. Edoco by Dayton Superior; Titan Hard.

f. Euclid Chemical Company (The), an RPM company; Euco Diamond Hard.

g. L&M Construction Chemicals, Inc.; Seal Hard.

h. Meadows, W. R., Inc.; LIQUI-HARD.

i. Metalcrete Industries; Floorsaver.

j. Symons by Dayton Superior; Buff Hard.

k. US SPEC, Division of US Mix Products Company; US SPEC Industraseal.

2.07 CURING MATERIALS

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

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

C. Water: Potable.

D. Clear, Waterborne, Membrane-Forming Curing Compound: ASTM C 309, Type 1, Class B, nondissipating, certified by curing compound manufacturer to not interfere with bonding of floor covering.

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

a. Anti-Hydro International, Inc.; AH Clear Cure WB.

b. BASF Construction Chemicals - Building Systems; Kure-N-Seal WB.

c. ChemMasters; Safe-Cure & Seal 20.

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d. Conspec by Dayton Superior; Cure and Seal WB.

e. Cresset Chemical Company; Crete-Trete 309-VOC Cure & Seal.

f. Dayton Superior Corporation; Safe Cure and Seal (J-18).

g. Edoco by Dayton Superior; Spartan Cote WB II.

h. Chemical Company (The), an RPM company; Aqua Cure VOX; Clearseal WB 150.

i. Kaufman Products, Inc.; Cure & Seal 309 Emulsion.

j. Lambert Corporation; Glazecote Sealer-20.

k. L&M Construction Chemicals, Inc.; Dress & Seal WB.

l. Meadows, W. R., Inc.; Vocomp-20.

m. Metalcrete Industries; Metcure.

n. Nox-Crete Products Group; Cure & Seal 150E.

o. Symons by Dayton Superior; Cure & Seal 18 Percent E.

p. TK Products, Division of Sierra Corporation; TK-2519 WB.

q. Vexcon Chemicals, Inc.; Starseal 309.

2.08 RELATED MATERIALS

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

B. Bonding Agent: ASTM C 1059/C 1059M, Type II, nonredispersible, acrylic emulsion or styrene butadiene.

C. 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 suit requirements, and as follows:

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

D. Reglets: Fabricate reglets of not less than 0.022-inch-thick, galvanized-steel sheet.

Temporarily fill or cover face opening of reglet to prevent intrusion of concrete or debris.

E. Anchor and dowel adhesive for concrete: Two-part high strength injection adhesive. Provide one of the following:

1. HIT-HY200-A Adhesive by Hilti Corporation

2. PE1000+ Adhesive by Dewalt.

3. AT Adhesive by Simpson Strong-Tie Inc.

F. Anchor and dowel adhesive for masonry: Two-part high strength injection adhesive. Provide one of the following:

1. HIT-HY270 Adhesive by Hilti Corporation

2. PE1000+ Adhesive by Dewalt.

3. AT Adhesive by Simpson Strong-Tie Inc.

2.09 REPAIR MATERIALS

A. Repair Underlayment: Cement-based, polymer-modified, self-leveling product that can be applied in thicknesses from 1/8 inch and that can be feathered at edges to match adjacent floor elevations.

1. Cement Binder: ASTM C 150, portland cement or hydraulic or blended hydraulic cement as defined in ASTM C 219.

2. Primer: Product of underlayment manufacturer recommended for substrate, conditions, and application.

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3. Aggregate: Well-graded, washed gravel, 1/8 to 1/4 inch or coarse sand as recommended by underlayment manufacturer.

4. Compressive Strength: Not less than 4100 psi at 28 days when tested according to ASTM C 109/C 109M.

2.10 VAPOR RETARDER

A. Plastic Vapor Retarder: ASTM E 1745, Class A. Provide polyethylene sheet not less than 15 mils thick. Include manufacturer's recommended adhesive or pressure-sensitive tape.

1. Available Products:

a. W.R. Meadows Sealtight 15 mil; “Vapor-Mat”.

b. Raven Industries Inc.; Vapor Block 15.

c. Stego Wrap 15 Mil; Stego Industries, LLC

2.11 WATERSTOPS

A. Self-Expanding Butyl Strip Waterstops: manufactured rectangular or trapezoidal strip, butyl rubber with sodium bentonite or other hydrophilic polymers for adhesive bonding to concrete, ¾ by 1 inch.

1. Subject to compliance with requirements, provide the following:

a. Greenstreak: Swellstop.

b. Cetco: Volcay Waterstop-RX.

c. Carlisle Coatings and waterproofing, Inc. Mirastop.

2.12 CONCRETE MIXTURES, GENERAL

A. Prepare design mixtures for each type and strength of concrete, proportioned on the basis of laboratory trial mixture or field test data, or both, according to ACI 301.

1. Use a qualified independent testing agency for preparing and reporting proposed mixture designs based on laboratory trial mixtures.

B. Cementitious Materials: Limit percentage, by weight, of cementitious materials other than portland cement in concrete as follows:

1. Fly Ash: 25 percent.

2. Combined Fly Ash and Pozzolan: 25 percent.

3. Ground Granulated Blast-Furnace Slag: 50 percent.

4. Combined Fly Ash or Pozzolan and Ground Granulated Blast-Furnace Slag: 50 percent portland cement minimum, with fly ash or pozzolan not exceeding 25 percent. Not permitted at colored and polished concrete.

C. Limit water-soluble, chloride-ion content in hardened concrete to 0.06 percent by weight of cement.

D. 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.

3. Use water-reducing admixture in pumped concrete, concrete for heavy-use industrial slabs and parking structure slabs, concrete required to be watertight, and concrete with a water-cementitious materials ratio below 0.50.

2.13 CONCRETE MIXTURES FOR BUILDING ELEMENTS

A. Footings and Foundation Walls: Proportion normal-weight concrete mixture as follows:

1. Minimum Compressive Strength: 4500 psi at 28 days.

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2. Maximum Water-Cementitious Materials Ratio: 0.43.

3. Slump Limit: 4 inches, plus or minus 1 inch.

4. Air Content: 6 percent, plus or minus 1.5 percent at point of delivery for 3/4-inch nominal maximum aggregate size.

B. Interior Slabs-on-Grade and Slabs on Metal Deck: Proportion normal-weight concrete mixture as follows:

1. Minimum Compressive Strength: 4000 psi at 28 days.

2. Maximum Water-Cementitious Materials Ratio: 0.43.

3. Slump Limit: 4 inches, plus or minus 1 inch.

4. Air Content: Do not allow air content of interior trowel-finished floors to exceed 3 percent.

5. Water Vapor Reducing Admixture shall be added to all interior slabs-on-grade and slabs-on-metal deck. Follow all manufacturer’s recommended installation procedures. Dose at a minimum od 10 oz per 100 pounds of total cementitious materials. Remove and equal amount of water from the mix.

C. Exterior Slabs-on-Grade: Proportion normal-weight concrete mixture as follows:

1. Minimum Compressive Strength: 5000 psi at 28 days.

2. Maximum Water/Cement Ratio: 0.40

3. Slump Limit: 4 inches, plus or minus 1 inch.

4. Air Content (Exterior Slabs): 5.5 percent, plus or minus 1.5 percent at point of delivery for 1-1/2-inch nominal maximum aggregate size.

2.14 FABRICATING REINFORCEMENT

A. Fabricate steel reinforcement according to CRSI's "Manual of Standard Practice."

2.15 CONCRETE MIXING

A. Measure, batch, mix, and deliver concrete according to ASTM C 94/C 94M and furnish batch ticket information.

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

PART 3 EXECUTION

3.01 FORMWORK

A. Design, erect, shore, brace, and maintain formwork, according to ACI 301, to support vertical, lateral, static, and dynamic loads, and construction loads that might be applied, until structure can support such loads.

B. Construct formwork so concrete members and structures are of size, shape, alignment, elevation, and position indicated, within tolerance limits of ACI 117.

C. Limit concrete surface irregularities, designated by ACI 347 as abrupt or gradual, as follows:

1. Class B, 1/4 inch for rough-formed finished surfaces.

D. Construct forms tight enough to prevent loss of concrete mortar.

E. Fabricate forms for easy removal without hammering or prying against concrete surfaces.

Provide crush or wrecking plates where stripping may damage cast concrete surfaces. Provide top forms for inclined surfaces steeper than 1.5 horizontal to 1 vertical.

1. Install keyways, reglets, recesses, and the like, for easy removal.

2. Do not use rust-stained steel form-facing material.

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F. Set edge forms, bulkheads, and intermediate screed strips for slabs to achieve required elevations and slopes in finished concrete surfaces. Provide and secure units to support screed strips; use strike-off templates or compacting-type screeds.

G. Provide temporary openings for cleanouts and inspection ports where interior area of formwork is inaccessible. Close openings with panels tightly fitted to forms and securely braced to prevent loss of concrete mortar. Locate temporary openings in forms at inconspicuous locations.

H. Chamfer exterior corners and edges of permanently exposed concrete.

I. Form openings, chases, offsets, sinkages, keyways, reglets, blocking, screeds, and bulkheads required in the Work. Determine sizes and locations from trades providing such items.

J. Clean forms and adjacent surfaces to receive concrete. Remove chips, wood, sawdust, dirt, and other debris just before placing concrete.

K. Retighten forms and bracing before placing concrete, as required, to prevent mortar leaks and maintain proper alignment.

L. Coat contact surfaces of forms with form-release agent, according to manufacturer's written instructions, before placing reinforcement.

3.02 EMBEDDED ITEMS

A. Place and secure anchorage devices and other embedded items required for adjoining work that is attached to or supported by cast-in-place concrete. Use setting drawings, templates, diagrams, instructions, and directions furnished with items to be embedded.

1. Install anchor rods, accurately located, to elevations required and complying with tolerances in Section 7.5 of AISC's "Code of Standard Practice for Steel Buildings and Bridges."

2. Install reglets to receive waterproofing and to receive through-wall flashings in outer face of concrete frame at exterior walls, where flashing is shown at lintels, shelf angles, and other conditions.

3.03 REMOVING AND REUSING FORMS

A. General: Formwork for sides of beams, walls, columns, and similar parts of the Work that does not support weight of concrete may be removed after cumulatively curing at not less than 50 deg. F for 24 hours after placing concrete. Concrete has to be hard enough to not be damaged by form-removal operations and curing and protection operations need to be maintained.

B. Clean and repair surfaces of forms to be reused in the Work. Split, frayed, delaminated, or otherwise damaged form-facing material will not be acceptable for exposed surfaces.

Apply new form-release agent.

C. When forms are reused, clean surfaces, remove fins and laitance, and tighten to close joints.

Align and secure joints to avoid offsets. Do not use patched forms for exposed concrete surfaces unless approved by Architect.

3.04 VAPOR RETARDER

A. Plastic Vapor Retarders: Place, protect, and repair vapor retarders according to ASTM E 1643 and manufacturer's written instructions

1. Lap joints 6 inches and seal with manufacturer's recommended tape.

3.05 SHORES AND RESHORES

A. Comply with ACI 318 and ACI 301 for design, installation, and removal of shoring and reshoring

1. Do not remove shoring or reshoring until measurement of slab tolerances is complete.

B. Plan sequence of removal of shores and reshore to avoid damage to concrete. Locate and provide adequate reshoring to support construction without excessive stress or deflection.

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3.06 STEEL REINFORCEMENT

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

1. Do not cut or puncture vapor retarder. Repair damage and reseal vapor retarder before placing concrete.

B. Clean reinforcement of loose rust and mill scale, earth, ice, and other foreign materials that would reduce bond to concrete.

C. Accurately position, support, and secure reinforcement against displacement. Locate and support reinforcement with bar supports to maintain minimum concrete cover. Do not tack weld crossing reinforcing bars.

D. Set wire ties with ends directed into concrete, not toward exposed concrete surfaces.

E. Install welded wire reinforcement in longest practicable lengths on bar supports spaced to minimize sagging. Lap edges and ends of adjoining sheets at least one mesh spacing. Offset laps of adjoining sheet widths to prevent continuous laps in either direction. Lace overlaps with wire.

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

3.07 JOINTS

A. General: Construct joints true to line with faces perpendicular to surface plane of concrete.

B. Construction Joints: Install so strength and appearance of concrete are not impaired, at locations indicated or as approved by Architect.

1. Place joints perpendicular to main reinforcement. Continue reinforcement across construction joints unless otherwise indicated. Do not continue reinforcement through sides of strip placements of floors and slabs.

2. Form keyed joints as indicated. Embed keys at least 1-1/2 inches into concrete.

3. Space vertical joints in walls as indicated.

4. Use epoxy-bonding adhesive at locations indicated.

C. Contraction Joints in Slabs-on-Grade: Form weakened-plane contraction joints, sectioning concrete into areas as indicated.

1. Sawed Joints: Form contraction joints with power saws equipped with shatterproof abrasive or diamond-rimmed blades. Cut 1/8-inch-wide joints into concrete as soon as possible when cutting action will not tear, abrade, or otherwise damage surface.

2. Isolation Joints in Slabs-on-Grade: After removing formwork, install joint-filler strips at slab junctions with vertical surfaces, such as column pedestals, foundation walls, grade beams, and other locations, as indicated.

3. Terminate full-width joint-filler strips not less than 1/2 inch or more than 1 inch below finished concrete surface where joint sealants, specified in Section 07920 "Joint Sealants," are indicated.

4. Install joint-filler strips in lengths as long as practicable. Where more than one length is required, lace or clip sections together.

D. Doweled Joints: Install dowel bars, plates and support assemblies at joints where indicated.

Install one end of dowels and plates in plastic sleeve to prevent concrete bonding to one side of joint.

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3.08 WATERSTOPS

A. Self-expanding Strip Waterstops: Install in construction joints, shear keys and in other locations indicated with adhesive bonding and mechanical fastening to firmly place into position in accordance with the manufacture’s written instructions. Install in the longest lengths practical.

Do not allow strips to expand prior to placing concrete.

3.09 CONCRETE PLACEMENT

A. Before placing concrete, verify that installation of formwork, reinforcement, and embedded items is complete and that required inspections have been performed.

B. Do not add water to concrete during delivery, at Project site, or during placement unless approved by Architect.

C. Before test sampling and placing concrete, water may be added at Project site, subject to limitations of ACI 301.

1. Do not add water to concrete after adding high-range water-reducing admixtures to mixture.

D. Deposit concrete continuously in one layer or in horizontal layers of such thickness that no new concrete will be placed on concrete that has hardened enough to cause seams or planes of weakness. If a section cannot be placed continuously, provide construction joints as indicated.

Deposit concrete to avoid segregation.

1. Deposit concrete in horizontal layers of depth to not exceed formwork design pressures and in a manner to avoid inclined construction joints.

2. Consolidate placed concrete with mechanical vibrating equipment according to ACI 301.

3. Do not use vibrators to transport concrete inside forms. Insert and withdraw vibrators vertically at uniformly spaced locations to rapidly penetrate placed layer and at least 6 inches into preceding layer. Do not insert vibrators into lower layers of concrete that have begun to lose plasticity. At each insertion, limit duration of vibration to time necessary to consolidate concrete and complete embedment of reinforcement and other embedded items without causing mixture constituents to segregate.

E. Deposit and consolidate concrete for floors in a continuous operation, within limits of construction joints, until placement of a panel or section is complete.

1. Consolidate concrete during placement operations so concrete is thoroughly worked around reinforcement and other embedded items and into corners.

2. Maintain reinforcement in position on chairs during concrete placement.

3. Screed slab surfaces with a straightedge and strike off to correct elevations.

4. Slope surfaces uniformly to drains where required.

5. Begin initial floating using bull floats or darbies to form a uniform and open-textured surface plane, before excess bleedwater appears on the surface. Do not further disturb slab surfaces before starting finishing operations.

F. 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 average high and low temperature is expected to fall below 40 deg F for three successive days, maintain delivered concrete mixture temperature within the temperature range required by ACI 301.

2. Do not use frozen materials or materials containing ice or snow. Do not place concrete on frozen subgrade or on subgrade containing frozen materials.

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

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G. Hot-Weather Placement: Comply with ACI 301 and as follows:

1. 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. Fog-spray forms, steel reinforcement, and subgrade just before placing concrete. Keep subgrade uniformly moist without standing water, soft spots, or dry areas.

3.10 FINISHING FORMED SURFACES

A. Rough-Formed Finish: As-cast concrete texture imparted by form-facing material with tie holes and defects repaired and patched. Remove fins and other projections that exceed specified limits on formed-surface irregularities.

1. Apply to concrete surfaces not exposed to public view.

B. Smooth-Formed Finish: As-cast concrete texture imparted by form-facing material, arranged in an orderly and symmetrical manner with a minimum of seams. Repair and patch tie holes and defects. Remove fins and other projections that exceed specified limits on formed-surface irregularities.

1. Apply to concrete surfaces exposed to public view.

C. Related Unformed Surfaces: At tops of walls, horizontal offsets, and similar unformed surfaces adjacent to formed surfaces, strike off smooth and finish with a texture matching adjacent formed surfaces. Continue final surface treatment of formed surfaces uniformly across adjacent unformed surfaces unless otherwise indicated.

3.11 FINISHING FLOORS AND SLABS

A. General: Comply with ACI 302.1R recommendations for screeding, restraightening, and finishing operations for concrete surfaces. Do not wet concrete surfaces.

B. Scratch Finish: While still plastic, texture concrete surface that has been screeded and bull-floated or darbied. Use stiff brushes, brooms, or rakes to produce a profile amplitude of 1/4 inch in one direction.

1. Apply scratch finish to surfaces to receive mortar setting beds for bonded cementitious floor finishes.

C. Float Finish: Consolidate surface with power-driven floats or by hand floating if area is small or inaccessible to power driven floats. Restraighten, cut down high spots, and fill low spots.

Repeat float passes and restraightening until surface is left with a uniform, smooth, granular texture.

1. Apply float finish to surfaces to receive trowel finish.

D. Trowel Finish: After applying float finish, apply first troweling and consolidate concrete by hand or power-driven trowel. Continue troweling passes and restraighten until surface is free of trowel marks and uniform in texture and appearance. Grind smooth any surface defects that would telegraph through applied coatings or floor coverings.

1. Apply a trowel finish to surfaces exposed to view or to be covered with resilient flooring, carpet, ceramic or quarry tile set over a cleavage membrane, paint, or another thin-film-finish coating system.

2. Finish surfaces to the following tolerances, according to ASTM E 1155, for a randomly trafficked floor surface:

a. Specified overall values of flatness, F(F) 35; and of levelness, F(L) 25; with minimum local values of flatness, F(F) 22; and of levelness, F(L) 17 for slabs-on- grade.

b. Specified overall values of flatness, F(F) 25; with minimum local values of flatness, F(F) 17 for slabs-on-deck.

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E. Trowel and Fine-Broom Finish: Apply a first trowel finish to surfaces where ceramic or quarry tile is to be installed by either thickset or thin-set method. While concrete is still plastic, slightly scarify surface with a fine broom.

1. Comply with flatness and levelness tolerances for trowel-finished floor surfaces.

F. Broom Finish: Apply a broom finish to exterior concrete platforms, steps, ramps, and elsewhere as indicated.

1. Immediately after float finishing, slightly roughen trafficked surface by brooming with fiber-bristle broom perpendicular to main traffic route.