SpecsDiv 3-12 14.pdf

Ohio Army National Guard Regional Training Institute 6 April 2009 Defense Supply Center Columbus (DSCC) – Columbus, Ohio Issued For Construction Solicitation Number: W91364-09-B-0004

SECTION 03200 - CONCRETE REINFORCEMENT

PART 1 - GENERAL

1.1 SECTION INCLUDES

A. Reinforcing steel bars, wire fabric and accessories for cast-in-place concrete

1.2 REFERENCES

A. ACI 301 - Structural Concrete for Buildings

B. ACI 318 - Building Code Requirements For Reinforced Concrete

C. ACI SP-66 - American Concrete Institute - Detailing Manual

D. ASCE 7-02 - American Society of Civil Engineers - Wind Loads

E. ASTM A82 - Cold Drawn Steel Wire, Plain, for Concrete Reinforcement

F. ASTM A184 - Fabricated Deformed Steel Bar Mats for Concrete Reinforcement

G. ASTM A185 - Steel Welded Wire Fabric, Plain, for Concrete Reinforcement

H. ASTM A496 - Steel Wire Fabric, Deformed, for Concrete Reinforcement

I. ASTM A497 - Steel Welded Wire Fabric, Deformed, for Concrete Reinforcement

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

K. ASTM A706 - Low-Alloy Steel Deformed Bars for Concrete Reinforcement

L. ASTM A767 - Zinc-Coated (Galvanized) Steel Bars for Concrete Reinforcement

M. ASTM A775 - Epoxy-Coated Reinforcing Steel Bars

N. ASTM D3963 - Epoxy-Coated Reinforcing Steel

O. AWS D1.4 - American Welding Society - Structural Welding Code-Reinforcing Steel

P. AWS D12.1 - Welding Reinforcement Steel, Metal Inserts and Connections in Reinforced Concrete Construction.

Q. CRSI - Concrete Reinforcing Steel Institute - Manual of Practice.

R. CRSI - Recommended Practice For Placing Reinforcing Bars.

S. CRSI - Recommended Practice For Placing Bar Supports, Specifications and Nomenclature.

CONCRETE REINFORCEMENT 03200 - 1

1.3 SUBMITTALS FOR REVIEW

A. Submit product data under provisions of Section 01300.

B. Shop Drawings: Indicate bar sizes, spacing, locations, and quantities of reinforcing steel and wire fabric, bending and cutting schedules, and supporting and spacing devices.

C. SUBMITTALS FOR INFORMATION

1. Submit product data under provisions of Section 01300.

2. Manufacturer's Certificate: Certify that products meet or exceed specified requirements.

3. Submit certified copies of mill test report of reinforcement materials analysis.

D. DESIGN REQUIREMENTS

1. Design shall comply with the ASCE 7-05 – Wind Loads, and ACI 318-05.

2. Welding of reinforcing steel is not permitted.

E. QUALITY ASSURANCE

1. Perform work in accordance with ACI 301. Maintain one copy of document on site.

2. Design reinforcement under direct supervision of a Professional Structural Engineer experienced in design of this work and licensed in the State of Ohio.

3. Submit under provisions of Section 01400 Manufacturer's Certificates, certifying welders employed on the work, verifying ASW qualification within the previous 12 months.

PART 2 - PRODUCTS

2.1 REINFORCEMENT

A. Reinforcing Steel: ASTM A615, Grade 60; deformed billet steel bars, unfinished

B. Stirrup and Tie Steel: ASTM A615, Grade 60; deformed billet steel bars, unfinished.

C. Welded Steel Wire Fabric: ASTM A185 Plain Type; in flat sheets and rolls; unfinished.

D. Steel Wire: ASTM A82, plain, cold drawn, steel.

2.2 ACCESSORIES

A. Tie Wire: Minimum 16-gage annealed type or patented system.

B. Chairs, Bolsters, Bar Supports, Spacers: Size and shape for strength and reinforcement support during concrete placement, include load bearing pad on bottom to prevent vapor barrier puncture.

C. Special Chairs, Bolsters, Bar Supports, and Spacers Adjacent to Weather Exposed Concrete Surfaces: Plastic coated steel type; size and shape as required.

CONCRETE REINFORCEMENT 03200 - 2

2.3 FABRICATION

A. Fabricate concrete reinforcing in accordance with ACI 318.

B. Locate reinforcing splices not shown on plans, at point of minimum stress, and indicate on shop drawings for A/E review.

PART 3 - EXECUTION

3.1 PLACEMENT

A. Place support and secure reinforcement against displacement, without deviating from the required position.

B. Do not displace or damage vapor barrier.

C. Accommodate placement of formed openings.

D. Conform to applicable code for concrete cover over reinforcement.

3.2 FIELD QUALITY CONTROL

A. Section 01400 - Quality Control: Field inspection.

END OF SECTION 03200

CONCRETE REINFORCEMENT 03200 - 3

Defense Supply Center Columbus (DSCC) – Columbus, Ohio Issued for Construction

CAST-IN-PLACE CONCRETE 03300 - 1

SECTION 03300 - CAST-IN-PLACE CONCRETE

1.1 SECTION INCLUDES

A. Cast-in-place concrete floors, footings, and supported slabs.

B. Floors and slabs on grade.

C. Control, expansion and contraction joint devices associated with concrete work, including joint sealants.

D. Equipment pads.

1.2 REFERENCES

A. ACI 211.1 - Selecting Proportions for Normal, Heavyweight, and Mass Concrete

B. ACI 301 - Structural Concrete for Buildings

C. ACI 302 - Guide for Concrete Floor and Slab Construction.

D. ACI 304 - Recommend Practice for Measuring, Mixing, Transporting and Placing Concrete

E. ACI 305R - Hot Weather Concreting.

F. ACI 306R - Cold Weather Concreting.

G. ACI 308 - Standard Practice for Curing Concrete

H. ACI 318 - Building Code Requirements for Structural Concrete

I. ASTM C33 - Concrete Aggregates

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

K. ASTM C94 - Ready-Mixed Concrete

L. ASTM C150 - Portland Cement

M. ASTM C260 - Air Entraining Admixtures for Concrete

N. ASTM C494 - Test Method for Chemical Admixtures for Concrete

O. ASTM C618 - Fly Ash and Raw or Calcinated Natural Pozzolan for Use as a Mineral Admixture in Portland Cement Concrete

P. ASTM D994 - Preformed Expansion Joint Filler for Concrete (Bituminous Type).

CAST-IN-PLACE CONCRETE 03300 - 2

Q. ASTM D1190 - Concrete Joint Sealer, Hot-Poured Elastic Type

R. ASTM D1751 - Preformed Expansion Joint Fillers for Concrete Paving and Structural Construction (Non-extruding and Resilient Bituminous Types).

S. ASCE 7-05 – Minimum Design Loads for Buildings and other Structures.

1.3 SUBMITTALS FOR REVIEW

B. Product Data: Provide data on joint devices, attachment accessories, admixtures, curing compound, and sealers.

C. 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.

D. Field quality-control test reports.

1.4 SUBMITTALS FOR INFORMATION

B. Manufacturer's Installation Instructions: Indicate installation procedures and interface required with adjacent Work.

1.5 SUBMITTALS AT PROJECT CLOSEOUT

A. Section 01700 - Contract Closeout: Procedures for submittals.

B. Accurately record actual locations of embedded utilities and components that are concealed from view.

1.6 DESIGN REQUIREMENTS

A. Design in conformance with ACI 318 and ACI 301.

1.7 QUALITY ASSURANCE

A. Perform Work in accordance with ACI 301 and ACI 117.

B. Mix and deliver ready mixed concrete in accordance with ASTM C94.

C. Maintain one copy of each document on site.

D. Acquire cement and aggregate from same source for all work.

E. Conform to ACI 305R when concreting during hot weather.

CAST-IN-PLACE CONCRETE 03300 - 3

F. Conform to ACI 306R when concreting during cold weather.

PART 2 - PRODUCTS

2.1 CONCRETE MATERIALS

A. Cement: ASTM C150, Type III - Normal, Portland type.

B. Fine and Coarse Aggregates: ASTM C33.

C. Water: Clean, not detrimental to concrete, potable, in accordance with

ASTM C 94/C 94M.

2.2 ADMIXTURES

A. Air Entrainment: ASTM C260.

B. Chemical: ASTM C494: 1. Water Reducing - Type A; 2. Retarding - Type B; 3. Accelerating -

Type C; 4. Water Reducing and Retarding - Type D; 5. Water Reducing and Accelerating - Type E; 6. Water Reducing, High Range - Type F; 7. Water Reducing, High Range and Retarding - Type G.

C. Fly Ash: ASTM C618, Class F.

2.3 ACCESSORIES

A. Bonding Agent: Polymer resin emulsion, Polyvinyl Acetate, Latex emulsion, two component modified epoxy resin, Non-solvent two component polysulfide epoxy, Mineral filled polysulfide polymer epoxy, Mineral filled polysulfide polymer epoxy resin, Versamid cured epoxy.

B. Non-Shrink Grout: Premixed compound consisting of non-metallic aggregate, cement, water reducing and plasticizing agents; capable of developing minimum compressive strength of 2,400 psi in 48 hours and 7,000 psi in 28 days.

2.4 JOINT DEVICES AND FILLER MATERIALS

A. Joint Filler: ASTM D1751; Asphalt impregnated fiberboard or felt; resiliency recovery of 95% if not compressed more than 50% of original thickness.

B. Construction Joint Devices: Integral galvanized steel; formed to tongue and groove profile, with removable top strip exposing sealant trough, ribbed steel spikes with tongue to fit top screed edge.

C. Sealant and Primer: Type, as specified in Section 07900.

D. Sealant: Cold applied.

2.5 CONCRETE MIX

A. Mix concrete in accordance with ACI 304. Deliver concrete in accordance with ASTM C94.

CAST-IN-PLACE CONCRETE 03300 - 4

B. Select proportions for normal weight concrete in accordance with ACI 301 Method 3.

C. Use accelerating admixtures in cold weather only when approved by A/E. Use of admixtures will not relax cold weather placement requirements.

D. Use set retarding admixtures during hot weather only when approved by A/E.

E. Add air-entraining agent to normal weight concrete mix for work exposed to exterior.

2.6 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: 20 percent (max.).

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, high-range water-reducing or plasticizing 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 and concrete with a water-cementitious materials ratio below 0.50.

2.7 CONCRETE MIXTURES FOR BUILDING ELEMENTS

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

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

2. Maximum Water-Cementitious Materials Ratio: 0.50.

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

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

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

2. Maximum Water-Cementitious Materials Ratio: 0.50.

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

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

C. Elevated Slabs: Proportion normal-weight concrete mixture as follows

CAST-IN-PLACE CONCRETE 03300 - 5

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

2. Maximum Water-Cementitious Materials Ratio: 0.50.

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

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

2.8 CONCRETE MIXING

A. Ready-Mixed Concrete: 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

3.1 EXAMINATION

A. Verify site conditions under provisions of Section 01039.

B. Verify requirements for concrete cover over reinforcement.

C. Verify that anchors, seats, plates, reinforcement and other items to be cast into concrete are accurately placed, positioned securely, and will not cause hardship in placing concrete.

3.2 PREPARATION

A. Prepare previously placed concrete by cleaning with steel brush and applying bonding agent in accordance with manufacturer's instructions.

B. Coordinate the placement of joint devices with erection of concrete formwork and placement of form accessories.

C. Remove all foreign matter and water from forms or structural excavations.

3.3 FORMWORK

A. Conform to ACI 347.

B. Foundations shall be formed. Earth forms not allowed.

3.4 PLACING CONCRETE

A. Place concrete in accordance with ACI 301.

B. Notify A/E minimum 24 hours prior to commencement of operations.

C. Ensure reinforcement, inserts, embedded parts, formed expansion and contraction joints are not disturbed during concrete placement.

CAST-IN-PLACE CONCRETE 03300 - 6

D. Install 15 mil vapor barrier under interior slabs on grade. Lap joints minimum six (6) inches and seal watertight by taping edges and ends.

E. Repair vapor barrier damaged during placement of concrete reinforcing. Repair with vapor barrier material; lay over damaged areas minimum six (6) inches and seal watertight. Place, protect, and repair in accordance with ASTM E 1643 and manufacturer’s instructions.

F. Separate slabs on grade from vertical surfaces with joint filler.

G. Place joint filler in floor slab pattern placement sequence. Secure to resist movement by wet concrete.

H. Extend joint filler from bottom of slab to within ¼" of finished slab surface. Conform to Section

07900 for finish joint sealer requirements.

I. Install joint devices in accordance with manufacturer's instructions.

J. Install construction joint devices in coordination with floor slab pattern placement sequence. Set top to required elevations. Secure to resist movement by wet concrete.

K. Maintain records of concrete placement. Record date, location, quantity, air temperature, and test samples taken.

L. Place concrete continuously between predetermined expansion, control, and construction joints.

M. Do not interrupt successive placement; do not permit cold joints to occur.

N. Saw cut joints within 24 hours after placing. Use 3/16" thick blade, cut into ¼ depth of slab thickness.

O. Screed floors and slabs on grade level, maintaining surface flatness of maximum ⅛" in 10'.

3.5 CONCRETE FINISHING

A. Provide formed concrete surfaces to be left exposed.

B. Finish concrete floor surfaces in accordance with Section 03346.

3.6 MISCELLANEOUS CONCRETE ITEMS

A. Filling In: Fill in holes and openings left in concrete structures, unless otherwise indicated, after work of other trades is in place. Mix, place, and cure concrete, as specified, to blend with in-place construction. Provide other miscellaneous concrete filling indicated or required to complete Work.

B. Curbs: Provide monolithic finish to curbs by stripping forms while concrete is still green and by steel-troweling surfaces to a hard, dense finish with corners, intersections, and terminations slightly rounded.

C. Equipment Bases and Foundations: Provide machine and equipment bases and foundations as shown on Drawings. Set anchor bolts for machines and equipment at correct elevations, complying with diagrams or templates of manufacturer furnishing machines and equipment.

CAST-IN-PLACE CONCRETE 03300 - 7

D. Steel Pan Stairs: Provide concrete fill for steel pan stair treads, landings, and associated items.

Cast-in inserts and accessories as shown on Drawings. Screed, tamp, and trowel-finish concrete surfaces.

3.7 CONCRETE PROTECTION AND CURING

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

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

C. Formed Surfaces: Cure formed concrete surfaces, including underside of beams, supported slabs, and other similar surfaces. If forms remain during curing period, moist cure after loosening forms. If removing forms before end of curing period, continue curing by one or a combination of the following methods:

D. Unformed Surfaces: Begin curing immediately after finishing concrete. Cure unformed surfaces, including floors and slabs, concrete floor toppings, and other surfaces, by one or a combination of the following methods:

1. Moisture 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 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 12 inches, and sealed by waterproof tape or adhesive. Cure for not less than seven days.

Immediately repair any holes or tears during curing period using cover material and waterproof tape.

a. Moisture cure or use moisture-retaining covers to cure concrete surfaces to receive floor coverings.

b. Moisture cure or use moisture-retaining covers to cure concrete surfaces to receive penetrating liquid floor treatments.

c. Cure concrete surfaces to receive floor coverings with either a moisture-retaining cover or a curing compound that the manufacturer recommends for use with floor coverings.

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.

CAST-IN-PLACE CONCRETE 03300 - 8

4. Curing and Sealing Compound: Apply uniformly to floors and slabs indicated on the finish schedule (shown on the drawings and noted as “sealed concrete”), exterior walkway suspended slabs, and stairs in a 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. Repeat process 24 hours later and apply a second coat. Maintain continuity of coating and repair damage during curing period.

3.8 FIELD QUALITY CONTROL

A. Section 01400 - Quality Assurance: Field inspection, testing, adjusting, and balancing.

B. Provide free access to Work and cooperate with appointed firm.

C. Tests of cement and aggregates may be performed to ensure conformance with specified requirements.

D. Concrete Tests: Testing of composite samples of fresh concrete obtained according to ASTM C 172 shall be performed.

1. Testing Frequency: Obtain one composite sample for each day’s pour of each concrete mix exceeding 5 cubic yards, plus one set or each additional 50 cubic yards or less.

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 mixture. Perform additional tests when concrete consistency appears to change.

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

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

5. Compression Test Specimens: ASTM C 31/C 31M.

a. Cast and laboratory cure four standard cylinder specimens for each composite sample.

b. One additional test cylinder shall be taken during cold weather concreting, cured on the job site under the same conditions as the concrete it represents.

6. Compressive-Strength Tests: ASTM C 39/C 39M; test one specimen at 7 days, one set of two specimens at 28 days, and retain one specimen in reserve for later testing if required.

a. A compressive strength test shall be the average compressive strength from a set of two specimens obtained from same composite sample and tested at age indicated.

7. Strength of each concrete mixture will be satisfactory if every average of any three consecutive compressive-strength tests equals or exceeds specified compressive strength and no compressive-strength test value falls below specified compressive strength by more than 500 psi.

8. Test results shall be reported in writing to Architect/Engineer, 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.

CAST-IN-PLACE CONCRETE 03300 - 9

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

10. 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/Engineer. Testing and inspecting agency may conduct tests to determine adequacy of concrete by cored cylinders complying with ASTM C 42/C 42M or by other methods as directed by Architect.

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

12. Correct deficiencies in the Work that test reports and inspections indicate does not comply with the Contract Documents.

E. Measure floor and slab flatness and levelness according to ASTM E 1155 within 24 hours of finishing.

3.9 PATCHING

A. Allow A/E to inspect concrete surfaces immediately upon removal of forms.

B. Excessive honeycomb or embedded debris in concrete is not acceptable. Notify A/E upon discovery.

C. Patch imperfections in accordance with ACI 301.

3.10 DEFECTIVE CONCRETE

A. Defective Concrete: Concrete not conforming to required lines, details, dimensions, tolerances or specified requirements.

B. A/E shall determine the repair or replacement of defective concrete.

END OF SECTION 03300

Solicitation Number: W91364-09-B-0004

POLISHED CONCRETE FLOORS 03365 - 1

SECTION 03365 - POLISHED CONCRETE FLOORS

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Polished concrete floor system.

1.2 RELATED SECTIONS

A. Section 03300 (03 30 00) – Cast-in-Place Concrete.

1.3 REFERENCES

A. ASTM C 1028 – Standard Test Method for Determining the Static Coefficient of Friction of Ceramic Tile and Other Like Surfaces by the Horizontal Dynamometer Pull-Meter Method.

B. ASTM D 523 – Standard Test Method for Specular Gloss.

C. ASTM E 1155 – Standard Test Method for Determining FF Floor Flatness and FL Floor Levelness Numbers.

1.4 SYSTEM DESCRIPTION

A. Installation of polished concrete floor system for new interior concrete floors by dry grinding and polishing with various size grit metal-bonded and resin-bonded diamonds and application of concrete densifier.

B. Performance Requirements: Improve performance of floor by installation of polished concrete floor system as measured by the following criteria:

1. Static Coefficient of Friction, ASTM C 1028:

a. Dry Surface: .6

b. Wet Surface: .6

2. Specular Gloss/Reflectance, ASTM D 523:

a. 20 Degrees:

b. 60 Degrees:

c. 85 Degrees:

3. Floor Surface Profile, ASTM E 1155:

a. Floor Flatness Number (FF): 50

b. Floor Levelness Number (FL): 35

1.5 SUBMITTALS

A. Comply with Section 01330 – Submittal Procedures.

B. Product Data: Submit installer's product data, including surface preparation and installation instructions.

C. Samples: Submit installer's samples of penetrating dye colors.

D. Installer's Certification: Submit Ohio State IPCI certification of installer and installer's employees.

Solicitation Number: W91364-09-B-0004

POLISHED CONCRETE FLOORS 03365 - 2

E. Installer's Project References: Submit installer's list of successfully completed polished concrete floor system projects, including project name and location, name of architect, and type and quantity of polished concrete floor system installed.

F. Maintenance Manual: Submit installer's maintenance manual, including maintenance and cleaning instructions for polished concrete floor system.

1.6 QUALITY ASSURANCE

A. Installer's Qualifications:

1. Certified Ohio State IPCI installer.

2. Employ IPCI Certified Craftsmen for installation of polished concrete floor system.

3. Employ a minimum of one IPCI Certified Craftsmen for installation of polished concrete floor system involving color or decorative work.

B. Pre-installation Meeting:

1. Convene pre-installation meeting before start of installation of polished concrete floor system.

2. Require attendance of parties directly affecting work of this section, including Owner, Contractor, Architect, and installer.

3. Review examination, surface preparation, installation, field quality control, protection, and coordination with other work.

1.7 DELIVERY, STORAGE, AND HANDLING

A. Delivery: Deliver materials to site in manufacturer's original, unopened containers and packaging, with labels clearly identifying product name and manufacturer.

B. Storage:

1. Store materials in clean, dry area indoors in accordance with manufacturer's instructions.

2. Keep materials from freezing.

C. Handling: Protect materials during handling and application to prevent contamination or damage.

PART 2 PRODUCTS

2.1 INSTALLER

A. Consult IPCI to find Ohio State certified IPCI installers.

1. International Polished Concrete Institute, PO Box 1174, Norris, Tennessee 37828. Toll

Free (866) 421-9550. Phone (865) 494-7881. Fax (865) 494-0872. Website www.ipcionline.org. E-mail info@ipcionline.org.

2.2 EQUIPMENT TO BE USED FOR INSTALLATION

A. Floor Grinder:

1. Model: Concrete Polishing Solutions "G-320" or approved equal.

2. Type: Multi-orbital, planetary-action, opposing-rotational, diamond-headed floor grinder.

3. Weight: 850 pounds.

4. Grinding Pressure: 675 pounds.

5. Grinding Width: 32 inches.

6. Motor: 15 HP.

7. Maximum RPM: 1,750.

Solicitation Number: W91364-09-B-0004

POLISHED CONCRETE FLOORS 03365 - 3

8. Head: 3-head system contours to floor surface.

B. Vacuum System:

1. Model: Concrete Polishing Solutions "CAT 5 Dust Extractor" or approved equal.

2. Filtration: Direct-connect, HEPA filtration system.

C. Diamond Tooling for Coating Removal, Initial Grinding, and Preparing Floor for Polishing:

1. Concrete Polishing Solutions "MFL" 80-grit metal-bonded diamonds.

2. Concrete Polishing Solutions "MFL" 150-grit metal-bonded diamonds.

D. Diamond Tooling for Polishing Concrete:

1. Concrete Polishing Solutions "GST" 100-grit resin-bonded diamonds.

2. Concrete Polishing Solutions "GST" 200-grit resin-bonded diamonds.

3. Concrete Polishing Solutions "GST" 400-grit resin-bonded diamonds.

2.3 MATERIALS

A. Concrete Densifier:

1. Concrete Polishing Solutions "Armor Densifier MFL" or approved equal.

a. Permanent sealing, densifying, and hardening compound for concrete.

b. Odorless.

c. VOC: 0.

B. Concrete Sealer:

1. Concrete Polishing Solutions "Armor Stain Shield MFL" or approved equal.

C. Penetrating Dye: Concrete Polishing Solutions "Color Perfect" colorants or approved equal.

1. Type: Solvent based.

2. Color: To be determined by the Contracting Officer and Architect.

PART 3 EXECUTION

3.1 EXAMINATION

A. Examine floor to receive polished concrete floor system.

B. Notify Contracting Officer and Architect of conditions that would adversely affect installation or subsequent use.

C. Do not begin surface preparation or installation until unacceptable conditions are corrected.

D. Verify the Following for New Concrete Floors:

1. Floor Finish:

a. Slabs and flatwork shall be placed and finished monolithically.

b. Strike off and laser screed slabs to true, plane surfaces at required elevations.

c. Thoroughly compact concrete with vibrators, floats, and tampers to force coarse aggregate below the surface.

d. Power trowel with no hand finishing.

e. Pan float.

f. Steel finish.

g. Surface should not be burned due to excessive troweling.

Solicitation Number: W91364-09-B-0004

POLISHED CONCRETE FLOORS 03365 - 4

h. Imprints are not acceptable (i.e. boots, foreign objects dropped into concrete).

2. Floor and Joints:

a. Free of debris and excessive dirt, dust, clay, and mud.

b. Dry.

3. Floor Surface Profile:

a. Floor Flatness Number (FF): 50 (preferred)_45 (minimum).

b. Floor Levelness Number (FL): 35 (preferred) 30 (minimum).

4. Concrete Compressive Strength: 3,500 psi to 5,000 psi.

5. Lightweight Concrete: Not allowed if aggregate exposure is required.

6. Concrete Curing: Minimum 8 days water cured or dissipating curing compound applied.

7. Concrete Adjacent to Floor Penetrations: Troweled flat and level with surrounding concrete.

8. Concrete Adjacent to Drains, clean-outs, etc: Finish level to the top of the structure.

3.2 SURFACE PREPARATION

A. Protection: Protect surrounding areas and adjacent surfaces from the following:

1. Minimal accumulation of dust from grinding and polishing.

2. Contact with overspray of concrete densifier.

3. Contact with overspray of concrete sealer.

B. Surface Preparation: Prepare surfaces in accordance with installer's instructions.

C. Clean Surfaces: Remove dirt, dust, debris, oil, grease, curing agents, bond breakers, paint, coatings, and other surface contaminants which could adversely affect installation of polished concrete floor system.

3.3 INSTALLATION

A. Install polished concrete floor system in accordance with installer's instructions at locations indicated on the Drawings.

B. Aggregate Exposure:

1. Cream Aggregate: Minimal to no course aggregate exposure.

C. Polished Concrete Floor System: IPCI Sheen Level 2 – Low Sheen.

1. Preparation Step:

a. Remove existing floor coatings and level floor by grinding with 80-grit metal-bonded diamonds.

2. Apply concrete densifier to deeply saturate floor.

3. Remove residue of concrete densifier dried on floor surface by grinding with 150-grit metal-bonded diamonds.

4. Floor Closure Polishing:

a. Remove 150-grit metal-bonded diamond scratches by grinding with 100-grit resin-bonded diamonds.

b. Remove 150-grit metal-bonded and 100-grit resin-bonded diamond scratches by grinding with 200-grit resin-bonded diamonds.

c. Complete floor polish by grinding with 400-grit resin-bonded diamonds.

5. Apply concrete sealer.

D. Penetrating Dye:

1. Mix dye in accordance with installer's instructions.

Solicitation Number: W91364-09-B-0004

POLISHED CONCRETE FLOORS 03365 - 5

2. Apply penetrating dye as last step before applying concrete sealer in accordance with installer's instructions.

3.4 FIELD QUALITY CONTROL

A. Inspect completed polished concrete floor system with Contracting Officer, Contractor, Architect, and Installer.

B. Review procedures with Architect to correct unacceptable areas of completed polished concrete floor system.

C. Testing: Test the following from completed polished concrete floor system:

1. Static Coefficient of Friction, ASTM C 1028:

a. Dry surface.

b. Wet surface.

2. Specular Gloss/Reflectance, ASTM D 523:

a. 20 degrees.

b. 60 degrees.

c. 85 degrees.

3. Floor Surface Profiles, ASTM E 1155:

a. Floor Flatness Number (FF).

b. Floor Levelness Number (FL).

D. Test Results:

1. Report test results in writing to Owner, Contractor, and Architect within 24 hours after tests.

2. Compare test results from tests performed before and after installation of polished concrete floor system.

3.5 PROTECTION

A. Protect completed polished concrete floor system from damage until Final Acceptance.

1. Do not allow vehicle and pedestrian traffic on unprotected floor.

2. Do not allow construction materials, equipment, and tools on unprotected floor.

B. Immediately remove mortar splatter, spilled liquids, oil, grease, paint, coatings, and other surface contaminants which could adversely affect completed polished concrete floor system.

C. Repair damaged areas of completed polished concrete floor system to satisfaction of Architect.

END OF SECTION 03365

Solicitation Number: W91364-09-B-0004

UNIT MASONRY ASSEMBLIES 04810 - 1

LEVEL 1 SPECIAL INSPECTION

FREQUENCY OF

INSPECTION

REFERENCE FOR CRITERIA

INSPECTION TASK

1. As masonry construction begins, the following shall be verified to ensure compliance:

a. Proportions of site prepared mortar.

b. Construction of mortar joints.

c. Location of reinforcement and connectors.

2. The inspection program shall verify:

a. Size and location of structural elements.

b. Type, size and location of anchors, including other details of anchorage of masonry to structural members, frames or other construction.

c. Specified size, grade and type of reinforcement.

d. Welding of reinforcement bars.

e. Protection of masonry during cold weather (temp.

below 40 deg F) or hot weather (temp. above 90 deg F)

CONT.

DURING

TASK

LISTED

IBC SECTION

ACI 530/

ASCE 5/TMS

402a

ACI 530.1/

ASCE 6/TMS

602a

3.3G

Art. 2.4, 3.4

Art. 1.8

Art. 2.6A

Art. 3.3B

Art 3.4

X

Sec. 2108.9.2.11 Item 2

Sec. 2104.3, 2104.4

Art. 3.2D Art. 3.4

Art. 2.6B Art. 3.3B

3. Prior to grouting, the following shall be verified to ensure compliance:

a. Grout space is clean.

b. Placement of reinforcement and connectors.

c. Verify use of required grout design mix

d. Construction of mortar joints.

X X

X X

Art. 1.4

4. Grout placement shall be verified to ensure compliance with code and construction document provisions.

X

Art. 1.5

PERIOD.

DURING

TASK

LISTED

X

X

X

X

X

X

X

5. Preparation of any required grout specimens, mortar specimens and/or prisms shall be observed.

6. Compliance with required inspection provision of the construction documents and the approved submittals shall be verified.

X

X

Sec. 2105.3, 2105.4, 2105.5

Art. 3.5

Solicitation Number: W91364-09-B-0004

UNIT MASONRY ASSEMBLIES 04810 - 1

SECTION 04810 - UNIT MASONRY ASSEMBLIES

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Concrete masonry units (CMU's).

2. Concrete building brick.

3. Decorative concrete masonry units.

4. Face brick.

5. Cast stone trim units.

B. Related Sections:

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

1.2 PRECONSTRUCTION TESTING

A. Preconstruction Testing Service: Engage a qualified independent testing agency to perform preconstruction testing indicated below.

1. Clay Masonry Unit Test: For each type of unit required, according to ASTM C 67 for compressive strength.

2. Concrete Masonry Unit Test: For each type of unit required, according to ASTM C 140 for compressive strength.

3. Mortar Test (Property Specification): For each mix required, according to ASTM C 780 for compressive strength.

4. Grout Test (Compressive Strength): For each mix required, according to ASTM C 1019.

1.3 SUBMITTALS

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

B. Sustainable Design Requirements:

1. Product Data for Recycled Content: For products having recycled content, documentation indicating percentages by weight of postconsumer and preconsumer recycled content.

a. Include statement indicating costs for each product having recycled content.

2. Regional Materials: Identify each regionally manufactured and each regionally extracted or recovered material, including name of manufacturer, address, and cost.

C. Shop Drawings:

Solicitation Number: W91364-09-B-0004

UNIT MASONRY ASSEMBLIES 04810 - 2

1. For reinforcing steel. Detail bending and placement of unit masonry reinforcing bars.

Comply with ACI 315, "Details and Detailing of Concrete Reinforcement."

2. Cast Stone Trim Units: Show sizes, sloped surfaces, profiles, and locations of each stone trim unit required.

D. Samples for Verification: For each type and color of exposed masonry unit and colored mortar.

E. Material Certificates: For each type and size of the following:

1. Masonry units.

a. Include material test reports substantiating compliance with requirements.

b. For exposed brick, include test report for efflorescence according to ASTM C 67.

c. For masonry units used in structural masonry, include data and calculations establishing average net-area compressive strength of units.

2. Cementitious materials. Include brand, type, and name of manufacturer.

3. Preblended, dry mortar mixes. Include description of type and proportions of ingredients.

4. Grout mixes. Include description of type and proportions of ingredients.

F. Mix Designs: For each type of mortar and grout. Include description of type and proportions of ingredients.

1.4 QUALITY ASSURANCE

A. Special Inspections for this project shall be as required by the Statement of Special Inspections for Masonry Construction, located at the End of Section, and as defined below.

1. Periodic Special Inspections: Part-time or intermittent observation of work requiring inspection by an approved special inspector who is present in the area where the work has been or is being performed and at the completion of the work.

2. Continuous Special Inspections: Inspections as required of the materials, installation, fabrication, erection or placement of components and connections requiring expertise to ensure compliance with approved construction documents and referenced standards.

3. Report Requirements:

a. Special Inspectors shall keep records of inspections. The Special Inspector shall furnish inspection reports to the Contracting Officer.

b. Reports shall indicate that work inspected was done in conformance to approved construction documents. Nonconformances shall be brought to the immediate attention of the Contractor for correction.

c. A final report of inspections documenting required special inspections and correction of nonconformances noted in the inspections shall be submitted at the conclusion of the Work.

B. Source Limitations for Masonry Units: Obtain exposed masonry units of a uniform texture and color, or a uniform blend within the ranges accepted for these characteristics, from single source from single manufacturer for each product required.

C. Source Limitations for Mortar Materials: Obtain mortar ingredients of a uniform quality, including color for exposed masonry, from one manufacturer for each cementitious component and from one source or producer for each aggregate.

Solicitation Number: W91364-09-B-0004

UNIT MASONRY ASSEMBLIES 04810 - 3

1. Note: Masonry Cement is not allowed on this project.

D. Masonry Standard: Comply with ACI 530.1/ASCE 6/TMS 602 unless modified by requirements in the Contract Documents.

E. Mockup: Prior to installing unit masonry, construct sample wall panels to verify selections made under sample submittals and to demonstrate aesthetic effects as well as other qualities of materials and execution. Build mockups to comply with the following requirements, using materials indicated for final unit of Work.

1. Locate mockups on site in the locations indicated or, if not indicated, as directed by Contracting Officer.

2. Build three individual mockups for face brick and decorative CMU in sizes approximately 48 inches long by 48 inches high by full thickness, and as follows:

a. Each mockup shall be constructed with a different selection of face brick and mortar, and decorative CMU and mortar. A total of six mockup samples will be required.

b. Each mockup shall establish color and range of mortar, face brick, and decorative

CMU.

c. Each mockup shall be cleaned with manufacturer’s recommended masonry cleaner. Mockups will not be reviewed for final approval and selection until proper cleaning has been completed.

d. The Contracting Officer will select from the sample mockups as the basis for the typical wall mockup described below.

3. Build independent, freestanding mockup of typical face brick construction as detailed on the drawings. Mockup wall shall be a composite representation of the actual design for the purpose of evaluating the quality, workmanship, and intersection of the various facing materials. Construct the mockup as follows:

a. Typical wall construction shall include final approved face brick, typical aluminum window, mortar, masonry backup, cold-formed metal support framing, sheathing, weather-resistive barrier, through-wall flashing, including end dams, metal drip edges, and termination bars, masonry ties, steel lintel, weep holes, bond breaker strips, vertical expansion joint, and joint sealant.

b. Provide flexible flashing at window opening and demonstrate flashing requirements specified in related specification Sections.

c. The typical wall construction mockup shall be a minimum of 12 feet long 90-degree corner section, with one leg 8 feet long and the other 4 feet long, by 10 feet high.

Provide vertical expansion joint at 1 foot from corner. Provide typical window opening, header, and sill construction as detailed.

d. Demonstrate grouting of CMU backup in accordance with the specifications.

e. Test weep system in the cavity wall to insure that it functions as intended. Make adjustments to weep system as necessary and implement into the permanent walls.

4. Notify Contracting Officer one week in advance of the dates and times when mockups will be constructed.

5. Protect accepted mockups from the elements with weather-resistant membrane.

6. Retain and maintain mockups during construction in an undisturbed condition as a standard for judging the completed Work.

7. Approval of mockups is for color, texture, and blending of masonry units; relationship of mortar and sealant colors to masonry unit colors; tooling of joints; and aesthetic qualities of workmanship.

Solicitation Number: W91364-09-B-0004

UNIT MASONRY ASSEMBLIES 04810 - 4

a. Approval of mockups is also for other material and construction qualities specifically approved by Contracting Officer in writing.

b. Approval of mockups does not constitute approval of deviations from the Contract Documents contained in mockups, unless such deviations are specifically approved by Contracting Officer in writing.

8. Demolish and remove mockups when directed.

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

1.5 PROJECT CONDITIONS

A. Protection of Masonry: During construction, cover tops of walls, projections, and sills with waterproof sheeting at end of each day's work. Cover partially completed masonry when construction is not in progress.

1. Extend cover a minimum of 24 inches down both sides of walls and hold cover securely in place.

2. Where one wythe of multiwythe masonry walls is completed in advance of other wythes, secure cover a minimum of 24 inches down face next to unconstructed wythe and hold cover in place.

B. Stain Prevention: Prevent grout, mortar, and soil from staining the face of masonry to be left exposed or painted. Immediately remove grout, mortar, and soil that come in contact with such masonry.

1. Protect base of walls from rain-splashed mud and from mortar splatter by spreading coverings on ground and over wall surface.

2. Protect sills, ledges, and projections from mortar droppings.

3. Protect surfaces of window and door frames, as well as similar products with painted and integral finishes, from mortar droppings.

C. Cold-Weather Requirements: Do not use frozen materials or materials mixed or coated with ice or frost. Do not build on frozen substrates. Remove and replace unit masonry damaged by frost or by freezing conditions. Comply with cold-weather construction requirements contained in ACI 530.1/ASCE 6/TMS 602.

D. Hot-Weather Requirements: Comply with hot-weather construction requirements contained in

ACI 530.1/ASCE 6/TMS 602.

PART 2 - PRODUCTS

2.1 MASONRY UNITS, GENERAL

A. Defective Units: Referenced masonry unit standards may allow a certain percentage of units to contain chips, cracks, or other defects exceeding limits stated in the standard. Do not use units where such defects will be exposed in the completed Work.

Solicitation Number: W91364-09-B-0004

UNIT MASONRY ASSEMBLIES 04810 - 5

B. Fire-Resistance Ratings: Where indicated, provide units that comply with requirements for fire-resistance ratings indicated as determined by testing according to ASTM E 119, by equivalent masonry thickness, or by other means, as acceptable to authorities having jurisdiction.

2.2 CONCRETE MASONRY UNITS

A. Regional Materials: Provide CMUs that have been manufactured within 500 miles of Project site from aggregates and cement that have been extracted, harvested, or recovered, as well as manufactured, within 500 miles of Project site.

B. Shapes: Provide shapes indicated and for lintels, corners, jambs, sashes, movement joints, headers, bonding, and other special conditions.

1. Provide bullnose units for outside corners in exposed areas, except first course above concrete slab where resilient wall base is scheduled.

C. CMUs: ASTM C 90.

1. Unit Compressive Strength: Provide units with minimum average net-area compressive strength of 1900-psi, minimum.

2. Density Classification: Normal weight.

D. Concrete Building Brick: ASTM C 55.

1. Unit Compressive Strength: Provide units with minimum average net-area compressive strength of 1900 psi.

2. Density Classification: Normal weight.

E. Decorative Concrete Masonry Units: ASTM C 90:

1. Integral Water Repellent: Provide units made with liquid polymeric, integral water repellent admixture that does not reduce flexural bond strength for exterior exposed units.

2. Unit Compressive Strength: Provide units with minimum average net-area compressive strength of 4700 psi.

3. Weight Classification: Normal weight.

4. Pattern and Texture:

a. Standard pattern, split-face finish.

2.3 MASONRY LINTELS

A. Masonry Lintels: Prefabricated or built-in-place masonry lintels made from bond beam CMUs with reinforcing bars placed as indicated and filled with coarse grout.

2.4 BRICK

A. Regional Materials: Provide brick that has been manufactured within 500 miles of Project site from materials that have been extracted, harvested, or recovered, as well as manufactured, within 500 miles of Project site.

B. General: Provide shapes indicated and as follows:

Solicitation Number: W91364-09-B-0004

UNIT MASONRY ASSEMBLIES 04810 - 6

1. For ends of sills and caps and for similar applications that would otherwise expose unfinished brick surfaces, provide units without cores or frogs and with exposed surfaces finished.

2. Provide special shapes for applications where shapes produced by sawing would result in sawed surfaces being exposed to view.

C. Face Brick: Facing brick complying with ASTM C 216.

1. Grade: SW.

2. Type: FBS.

3. Unit Compressive Strength: Provide units with minimum average net-area compressive strength of 3350 psi.

4. Initial Rate of Absorption: Less than 30 g/30 sq. in. per minute when tested per

ASTM C 67.

5. Efflorescence: Provide brick that has been tested according to ASTM C 67 and is rated

"not effloresced."

6. Size (Actual Dimensions) as follows:

a. 3-5/8 inches wide by 3-5/8 inches high by 11-5/8 inches long.

b. 3-5/8 inches wide by 7-5/8 inches high by 15-5/8 inches long.

7. Texture and Color: As selected by Contracting Officer.

2.5 CAST STONE TRIM UNITS

A. Cast Stone Materials: Comply with ASTM C 1364 and the following:

1. Portland Cement: ASTM C 150, Type I, containing not more than 0.60 percent total alkali when tested according to ASTM C 114.

2. Coarse Aggregates: Granite, quartz, or limestone complying with ASTM C 33; gradation as needed to produce required textures.

3. Fine Aggregates: Manufactured or natural sands complying with ASTM C 33, gradation as needed to produce required textures.

4. Air-Entraining Admixture: ASTM C 260, certified by the manufacturer to be compatible with other admixtures used.

5. Reinforcement: Deformed steel bars complying with ASTM A 615/A 615M.

a. Galvanized Coating: ASTM A 767/A 767M.

6. Embedded Anchors and Other Inserts: Fabricated from stainless steel complying with ASTM A 276 or ASTM A 666, Type 304.

7. Mix Proportions and Design: Proportion mixes by either laboratory trial batch or field experience method.

8. Produce standard-weight concrete consisting of portland cement, aggregates, admixtures, and water to produce the following properties:

a. Compressive strength not less than 5000 psi at 28 days and maximum absorption of 6 percent.

9. Texture and Color: As selected by Contracting Officer.

10. Unit Sizes: Cast stone trim units, water table units, window sill units, and other trim units shown on the drawings shall be a minimum of 48 inches long.

Solicitation Number: W91364-09-B-0004

UNIT MASONRY ASSEMBLIES 04810 - 7

2.6 MORTAR AND GROUT MATERIALS

A. Portland Cement-Lime Mix: Packaged blend of portland cement and hydrated lime containing no other ingredients.

B. Mortar Cement: ASTM C 1329.

C. Colored Cement Product: Packaged blend made from portland cement and lime or mortar cement and mortar pigments, all complying with specified requirements, and containing no other ingredients.

D. Aggregate for Mortar: ASTM C 144.

1. For joints less than 1/4 inch thick, use aggregate graded with 100 percent passing the No. 16 sieve.

2. Colored-Mortar Aggregates: Natural sand or crushed stone of color necessary to produce required mortar color.

E. Aggregate for Grout: ASTM C 404.

F. Water-Repellent Admixture: Liquid water-repellent mortar admixture intended for use with CMUs containing integral water repellent by same manufacturer.

G. Water: Potable.

2.7 REINFORCEMENT

A. Uncoated Steel Reinforcing Bars: ASTM A 615/A 615M or ASTM A 996/A 996M, Grade 60.

B. Masonry Joint Reinforcement, General: ASTM A 951/A 951M.

1. Interior Walls: Mill- galvanized, carbon steel.

2. Exterior Walls: Hot-dip galvanized, carbon steel.

3. Wire Size for Side Rods: 0.148-inch diameter.

4. Wire Size for Cross Rods: 0.148-inch diameter.

5. Wire Size for Veneer Ties: 0.148-inch diameter.

6. Spacing of Cross Rods, Tabs, and Cross Ties: Not more than 16 inches o.c.

7. Provide in lengths of not less than 10 feet, with prefabricated corner and tee units.

C. Masonry Joint Reinforcement for Single-Wythe Masonry: Either ladder or truss type with single pair of side rods.

D. Masonry Joint Reinforcement for Multiwythe Masonry:

1. Adjustable (two-piece) type, either…