Amendment_0003_03_30_00_Cast_In_Place_Concrete.pdf

RENOVATION AND MODERNIZATION OF PERSHING BARRACKS XXXXXX-XX-X-XXXX

USMA, West Point, New York

Section 03 30 00 Page 1 Issue for Bid June 8, 2016

SECTION 03 30 00

CAST IN PLACE CONCRETE

PART 1 - GENERAL

1.1 REFERENCES

Drawings and general provisions of the Contract, in cluding General and Supplementary Conditions and Division 0 1 Specification Sections, apply to the work of this S ection.

The publications listed below form a part of this specification to the extent referenced. The publica tions are referred to within the text by the basic designatio n only.

AMERICAN CONCRETE INSTITUE INTERNATIONAL (ACI)

ACI 117 Standard Specifications for Tolerances for Concrete Construction and Materials and Commentary

ACI 211.1 Standard Practice for Selecting Proportio ns for Normal, Heavyweight and Mass Concrete

ACI 211.2 Standard Practice for Selecting Proportio ns for Structural Lightweight Concrete

ACI 214R Evaluation of Strength Test Results of

Concrete

ACI 232.2R Use of Fly Ash in Concrete

ACI 233R Guide to Use of Slag Cement in Concrete an d

Mortar

ACI 234 Guide for the Use of Silica Fume in

Concrete

ACI 301 Specifications for Structural Concrete

ACI 302.1R Guide for Concrete Floor and Slab

Construction

ACI 304R Guide for Measuring, Mixing, Transporting and Placing Concrete

ACI 305R Hot Weather Concreting

Section 03 30 00 Page 2

ACI 306.1-90 Standard Specification for Cold Weathe r

Concreting

ACI 308.1 Standard Specification for Curing Concret e

ACI 309R Guide for Consolidation of Concrete

ACI 311.4R Guide for Concrete Inspections

ACI 315 Details and Detailing of Concrete

Reinforcement

ACI 318 Building Code Requirements for Structural

Concrete and Commentary

ACI 347 Guide to Formwork of Concrete

ACI 506 Guide to Shotcrete

ACI SP-15 The ACI Field Reference Manual, should be kept at the job site and the practices set forth therein shall be strictly adhered to.

AMERICAN WELDING SOCIETY (AWS)

AWS D1.4 Structural Welding Code Reinforcing Steel

ASTM INTERNATIONAL (ASTM)

ASTM A615 Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement

ASTM A706 Standard Specification for Deformed and

Plain Low-Alloy Steel Bars for Concrete

ASTM A767 Standard Specification for Zinc-Coated

(Galvanized) Steel Bars for Concrete

ASTM A775 Standard Specification for Epoxy-Coated

Steel Reinforcing Bars

ASTM A780 Standard Practice for Repair of Damaged a nd

Uncoated Areas of Hot-Dip Galvanized Coatings

Section 03 30 00 Page 3

ASTM A1064 Standard Specification for Carbon-Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for Concrete

ASTM C31 Standard Practice for Making and Curing

Concrete Test Specimens in the Field

ASTM C33 Standard Specification for Concrete

Aggregates

ASTM C39 Standard Test Method for Compressive

Strength of Cylindrical Concrete Specimens

ASTM C42 Standard Test Method for Obtaining and

Testing Drilled Cores and Sawed Beams of Concrete

ASTM C94 Standard Specification for Ready-Mixed

ASTM C143 Standard Test Method for Slump of

Hydraulic-Cement Concrete

ASTM C150 Standard Specification for Portland Cemen t

ASTM C171 Standard Specification for Sheet Material s for Curing Concrete

ASTM C172 Standard Practice for Sampling Freshly

Mixed Concrete

ASTM C173 Standard Test Method for Air Content of

Freshly Mixed Concrete by the Volumetric Method

ASTM C231 Standard Test Method for Air Content of

Freshly Mixed Concrete by the Pressure Method

ASTM C260 Standard Specification for Air-Entraining

Admixtures for Concrete

ASTM C309 Standard Specification for Liquid Membran e-

Forming Compounds for Curing Concrete

ASTM C330 Standard Specification for Lightweight

Aggregates for Structural Concrete

ASTM C494 Standard Specification for Chemical

Admixtures for Concrete

Section 03 30 00 Page 4

ASTM C595 Standard Specification for Blended Hydraulic Cements

ASTM C618 Standard Specification for Coal Fly Ash and

Raw or Calcined Natural Pozzolan for Use in

ASTM C836 Standard Specification for High Solids

Content, Cold Liquid-Applied Elastomeric Waterproofing Membrane for Use with Separate Wearing Course

ASTM C881 Standard Specification for Epoxy-Resin-Ba se

Bonding Systems for Concrete

ASTM C989 Standard Specification for Slag Cement fo r

Use in Concrete and Mortars

ASTM C1059 Standard Specification for Latex Agents for

Bonding Fresh To Hardened Concrete

ASTM C1107 Standard Specification for Packaged Dry, Hydraulic-Cement Grout (Nonshrink)

ASTM C1157 Standard Performance Specification for

Hydraulic Cement

ASTM C1240 Standard Specification for Silica Fume U sed in Cementitious Mixtures

ASTM C1315 Standard Specification for Liquid Membra ne-

Forming Compounds Having Special Properties for Curing and Sealing Concrete

ASTM D1241 Standard Specification for Materials for

Soil-Aggregate Subbase, Base, and Surface Courses

ASTM D1751 Standard Specification for Preformed

Expansion Joint Filler for Concrete Paving and Structural Construction (Nonextruding and Resilient Bituminous Types)

ASTM E1155 Standard Test Method for Determining FF

Floor Flatness and FL Floor Levelness Numbers

ASTM E1745 Standard Specification for Plastic Water

Vapor Retarders Used in Contact with Soil or Granular Fill under Concrete Slabs

Section 03 30 00 Page 5

ASTM E154 Standard Test Methods for Water Vapor Retarders Used in Contact with Earth Under Concrete Slabs, on Walls, or as Ground Cover

ASTM F710 Standard Practice for Preparing Concrete

Floors to Receive Resilient Flooring

CONCRETE REINFORCING STEEL INSTITUTE (CRSI)

CRSI 10MSP Manual of Standard Practice

CRSI-WCRSI Placing Reinforcing Bars

INTERNATIONAL CODE COUNCIL

International Building Code, 2012 Edition

WHOLE BUILDING DESIG GUIDE (WBDG)

UFC 1-200-01 General Building Requirements, 01 Jul 2013

UFC 3-301-01 Structural Engineering, 01 Jun 2013

1.2 SUMMARY

1.2.1 Section includes but is not limited to the followin g as shown on the drawings and as specified herein:

a. Foundation systems including footings, walls, beams , piers, pilasters, pits and similar concrete.

b. Slabs on grade.

c. Structural slabs on grade.

d. Structural slabs on metal deck.

e. Topping slabs

f. Stair pan fills.

g. Furnishing and installing all required anchors and inserts.

h. Placing in the forms all inserts, anchors, anchor bolts, bearing plates and the like furnished by oth er trades for casting into the concrete and cleaning o f same after stripping of forms.

i. Protection of all inserts, anchors, hangers, sleeve s and supports furnished and set by others for the attachment of other work to the concrete, or requir ed to permit the passage of other work through the concrete.

j. Supply, fabricate and place all required reinforcin g bars, mesh and other reinforcement for concrete whe re shown, called for, and/or required complete with pr oper supporting devices.

Section 03 30 00 Page 6

k. Erection and removal of all formwork required to properly complete the work.

l. Finishing of all concrete work as hereinafter specified.

m. Curing and protection of all concrete work.

n. Site concrete consisting of curbs, walls, pads, box es and the like as shown on the drawings.

o. Floor sealers and dust-proofing of all areas expose d and/or covered with carpet.

p. Cutting, patching, grouting, repairing and pointing up as required.

q. Vapor barrier system below slabs on grade.

r. Under slab drainage course.

s. Dewatering.

t. Waterproofing.

u. Grouting of all beam bearing plates and column base plates.

v. Embedded plates in all foundation walls.

w. Equipment pads as required.

x. All other work and materials as may be reasonably inferred and needed to make the work of this sectio n complete.

y. Waste Management

1.2.2 Related Requirements:

a. Division 01 Section “Construction Waste Management and Disposal”

b. Division 04 Section “Unit Masonry”

c. Division 05 Section “Structural Steel”

d. Division 05 Section “Metal Deck”

e. Division 05 Section “Metal Fabrications”

f. Division 06 Section “Rough Carpentry”

g. Division 07 Section “Waterproofing”

h. Division 07 Section “Joint Sealants”

i. Division 07 Section “Expansion Joint Cover Assembli es”

j. Division 31 Section “Dewatering”

1.3 SUBMITTALS

Government approval is required for submittals wit h a "G" designation; submittals not having a "G" designatio n are for information only. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDUR ES:

Sd-01 Pre-Construction Submittals: G

Submit proportioning and design mix per section 2.7 of this specification, for approval by the Contracting Offi cer and Engineer of Record.

Section 03 30 00 Page 7

SD-02 Shop Drawings: G

Submit original shop drawings for fabrication, bend ing, and placement of concrete reinforcement. Comply with A CI 315 "Details and Detailing of Concrete Reinforcement" s howing bar schedules, stirrup spacing, diagrams of bent bars, arrangement of concrete reinforcement. Include spe cial reinforcement required for openings through concret e structures. The shop drawings shall be prepared on ly by competent detailers, checked by the contractor prio r to submission.

a. The shop drawings shall show construction, contract ion and isolation joint locations and the added reinforcement required at same.

b. Obtain and coordinate information for sleeves and openings in concrete, which are required for the wo rk of other trades. Make coordinated drawings showing size and location of openings and sleeves and incorporate this information on the reinforcing drawings.

c. Only those splices indicated on the approved shop drawings will be permitted.

d. Provide elevations of all foundation walls and othe r structural elements to a minimum 1/4" scale.

Shop Drawings Formwork: Submit shop drawings for fa brication and erection of specific finished concrete surfaces . Show form construction including jointing, special form joint or reveals, location and pattern of form tie placement , and other items which affect exposed concrete visually.

Government’s review is for general Governmentural applications and features only. Design of formwork for structural stability and efficiency is Contractor’s responsibility, prepared by or under the supervisio n of a qualified professional engineer detailing fabricati on, assembly, and support of formwork.

a. Shoring and Reshoring: Indicate proposed schedule and sequence of stripping formwork, shoring removal, an d reshoring installation and removal.

Construction Joint Layout: Indicate proposed const ruction joints required to construct the structure.

a. Location of construction joints is subject to appro val of the Government.

Section 03 30 00 Page 8

Contraction Joint Layout: Indicate proposed contrac tion joints required per applicable codes and drawings.

a. Location of contraction joints is subject to approv al of the Government.

The use of the Government’s or Engineer of Record's electronic drawing files as a base for the reinforc ement, formwork, and joint layout shop drawings will be pe rmitted at the request of the detailer/designer upon completio n and return of the waiver form. The use of the Governmen t’s or Engineer of Record's electronic drawing files as a base for shop drawing details will not be permitted. The detailer/designer will be responsible for compatibi lity of the files with his hardware or software. The electr onic files are not to be considered the contract documents, th e design team makes no representation regarding the accuracy or completeness of the electronic files given to detailer/designer and their use will be at the detailer/designer’s sole risk and without liability to the design team. The detailer/designer shall remove the project title box and all references to the structural draw ings including drawing numbers and structural drawing se ctions and details. The detailer/designer shall also remove al l reference to work not included in the concrete cont ract.

Scaling of the Government’s or Engineer of Record’s drawings is not permitted. This applies to hard paper, elec tronic, and all other versions.

SD-03 Product Data: G

Submit data for proprietary materials and items, in cluding the following:

Reinforcement Supports for reinforcement Forming accessories Admixtures Patching compounds Waterstops Joint systems Curing compounds Dry-shake finish materials Others items as requested by Government

SD-04 Samples

Surface Finish Samples

Section 03 30 00 Page 9

Provide a minimum of three sample areas of each fin ish for each mix design, 3 feet by 3 feet in area. Use the approved concrete mix design(s). Provide sample finishing a s part of the trial mixture placement described in paragraph 1.4.6.5 of this section. Once approved, each set of samples m ust be representative of each of the finishes specified an d of the workmanship and finishes required. Do not remove o r destroy samples until directed by the Contracting Officer

SD-06 Test Reports: G

Submit laboratory test reports for concrete materia ls, mix design test and microwave test.

Recycled Aggregate: Provide laboratory reports indi cating that aggregate conforms to ASTM C33 for structural concrete or ASTM D1241-00 for sub-base material. Provide cu t sheets clearly indicating the source, total weight and vol ume of the recycled aggregate. If aggregate provided is a mix of virgin and recycled aggregates obtain a written affidavit from the manufacturer stating the recycled content percentag e

SD-07 Material Certificates: G

Provide materials certificates in lieu of materials laboratory test reports when permitted by Governmen t.

Manufacturer and Contractor, certifying that each m aterial item complies with, or exceeds, specified requireme nts shall sign material certificates. Provide certification from admixture manufacturers that chloride content compl ies with specification requirements.

Certification that pozzolanic materials conforms to ASTM C 618-01 (noting class C or class F), ASTM C 989 or A STM C1240.

Certified recycled steel content. Provide cut sheet s clearly indicating whether the rebar used meets the minimum s for post-consumer OR post-industrial recycled contents. Or, if cut sheets are not available, obtain a written affi davit from the manufacturer stating the recycled content perce ntage and if the recycled content is post-consumer or post-in dustrial.

Formwork: Specify whether reusable, permanent, salv aged or new wood forms are to be used.

Recycled Aggregate: Provide laboratory reports indi cating that aggregate conforms to ASTM C33 for structural concrete or ASTM D1241-00 for sub-base material. Provide cu t sheets clearly indicating the source, total weight and vol ume of the recycled aggregate. If aggregate provided is a mix of virgin

Section 03 30 00 Page 10 and recycled aggregates obtain a written affidavit from the manufacturer stating the recycled content percentag e.

VOC content for curing compounds, sealants and rele ase agents: Provide a cut sheet and a Material Safety Data Sheet (MSDS) for each curing compound, sealant, hardener and release agent used highlighting VOC contents. VOC content must be less than or equal to limits stated under “ PRODUCTS”.

SD-08 Manufacturer’s Instructions: G

Cold Weather and Hot Weather Concreting Procedures: Submit written descriptions of contractor’s proposed cold weather and hot weather concreting procedures, when applica ble.

1.4 QUALITY ASSURANCE

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

1.4.2 Source Limitations: Obtain each type or clas s of

cementitious material of the same brand from the sa me manufacturer's plant, obtain aggregate from single source, and obtain admixtures from single source from singl e manufacturer.

1.4.3 Welding Qualifications: Qualify procedures a nd personnel according to AWS D1.4/D 1.4M, "Structural Welding C ode - Reinforcing Steel."

1.4.4 Concrete Testing Service: Owner will engage a testing

laboratory acceptable to Government and Engineer of Record to perform material evaluation tests and to design concrete mixes.

1.4.5 Materials and installed work may require test ing and

retesting at any time during progress of work. Tes ts, including retesting of rejected materials for insta lled work, shall be done at Contractor's expense.

1.4.6 Preconstruction Meeting:

1.4.6.1 At least 35 days prior to the start of the concrete

construction schedule, the Contractor shall conduct a meeting to review the proposed mix designs and to discuss the required methods and procedures to achi eve the required concrete construction. The Contractor shall send a pre-concrete conference agenda to all

Section 03 30 00 Page 11 attendees 20 days prior to the scheduled date of th e conference.

1.4.6.2 The Contractor shall require responsible

representatives of every party who is concerned wit h the concrete work to attend the conference, includi ng but not limited to the following:

1. Contractor's superintendent

2. Laboratory responsible for the concrete design m ix

3. Laboratory responsible for field quality control

4. Concrete subcontractor

5. Ready-mix concrete producer

6. Admixture manufacturer(s)

7. Concrete pumping equipment manufacturer.

1.4.6.3 Minutes of the meeting shall be recorded, t yped and

printed by the contractor and distributed by the contractor to all parties concerned within 5 days o f the meeting. One copy of the minutes shall also be transmitted to the following for information purpos es:

Owner or owner's representative, Government, and Engineer of Record.

1.4.6.4 The minutes shall include a statement by th e concrete contractor indicating that the proposed mix design and placing can produce the concrete quality required b y these specifications.

1.4.6.5 A minimum of a 4 cubic yard trial mixture c ontaining all required admixtures shall be placed at the job site using the accepted methods of placing, finishi ng and curing. All applicable tests including slump, strengthen, permeability, and air content will be performed. This shall occur at least four weeks before actual concreting operations with particular admixture begins. The admixture manufacturer(s) an d inspectors shall be present. The same testing sho uld be done in the laboratory at the same time for comparison. A test sample should be done for each condition that is to be placed. This trial mixture placement shall include surface finishing sample ar eas as required under paragraph ‘SUBMITTALS’.

1.4.6.6 The Engineer of Record will be present at t he

conference. The Contractor shall notify the Engine er of Record at least 10 days prior to the scheduled d ate of the conference.

1.5 PROJECT CONDITIONS

Section 03 30 00 Page 12

1.5.1 The Contractor, before commencing work, shall examine all adjoining work on which this work is in any way dep endent for proper installation and workmanship according t o the intent of this specification, and shall report to t he Government or Engineer of Record any condition whic h prevents this contractor from performing first clas s work.

1.5.2 Protection of Footings Against Freezing: Cove r completed work at footing level with sufficient temporary or permanent cover as required to protect footings and adjacent subgrade against possibility of freezing; maintain cover for time period as necessary.

1.5.3 Protect adjacent finish materials against spa tter during concrete placement.

1.5.4 Provide all barricades and safeguards at all pits, holes, shaft and stairway openings, etc., to prevent injur y to workmen and others within and about the premises. Also provide all safeguards as required by the Building Code, OSHA, or any other departments having jurisdiction. Take full responsibility for all safety precautions and methods.

1.5.5 Procedure of Work: The contractor shall keep themself

constantly informed as to the progress of the work in the field, materials and workers ready to start work im mediately when conditions of preceding work are available or ready, wholly or in part, so as not to delay the progress of building work or to interfere with the progress of work of other contractors, and in any event the contractor shall, within 24 hours after notice from the Contracting O fficer, proceed with such work as directed to maintain the uninterrupted progress of the work.

1.6 DELIVERY, STORAGE, AND HANDLING

1.6.1 Steel Reinforcement: Deliver, store, and han dle steel

reinforcement to prevent bending and damage. The Co ntractor shall protect and prevent damage to steel reinforce ment.

1.6.2 Waterstops: Store waterstops under cover to protect from moisture, sunlight, dirt, oil, and other contaminan ts.

PART 2 - PRODUCTS

2.1 FORM MATERIALS

2.1.1 Forms for Exposed Finish Concrete: Unless ot herwise

indicated, construct of plywood, metal, metal-frame d plywood faced, or other acceptable panel-type materials, to provide continuous, straight, smooth, exposed surfaces. Fu rnish in

Section 03 30 00 Page 13 largest practicable sizes to minimize number of joi nts and to conform to joint system shown on drawings. Prov ide form material with sufficient strength and thickness to withstand pressure of newly placed concrete without bow or de flection.

a. Use plywood complying with U.S. Product Standard PS-1 “B-B (Concrete Form) Plywood”, Class I, Exterior Gr ade or better mill oiled and edge-sealed, with each pie ce bearing legible inspection trademark.

2.1.2 Forms for Unexposed Finish Concrete: Plywood, lumber, metal, or other acceptable material. Preference shall go to salvaged or re-used Dimensional Lumber. Provide lu mber dressed on at least 2 edges and one side for tight fit.

2.1.3 Sustainability Requirements For Wood Used For Formwork

a. New Dimensional Lumber for Formwork: Provide woo d certification documentation from the manufacturer/distributor, declaring conformance wit h Forest Stewardship Council (FSC) guidelines for certified wood building components The following independent certification organizations are accredi ted by the FSC and provide the manufacturer/distributor with documentation:

1. Scientific Certification Systems, Inc..

2. Smart Wood Certification Program: Rainforest All iance

b. Salvaged or re-used Dimensional Lumber for Formw ork:

Provide documentation certifying products are from salvaged wood sources. Provide grading certificate for structural applications. For wood salvage wood resources see GreenSpec.

c. If new dimensional Lumber is neither Certified n or salvaged: select regionally grown lumber with the lowest grade that meets performance requirements.

2.1.4 Form Coatings: Provide VOC compliant commerci al formulation form- coating compounds that will not bond with, st ain nor adversely affect concrete surfaces, and will not im pair subsequent treatments of concrete surfaces. Use biodegradable form release agent listed below or eq uivalent made from soy or rapeseed oil.

1. “Bio-Release EF” Dayton Superior

2. “Soy Form Away” Cure & Seal by Natural Soy

Products

3. “Bio-Form” Leahy-Wolf Company

4. “Duogard II” W. R. Meadows, Inc.

Section 03 30 00 Page 14

5. “Atlas Bio-Guard” Atlas Construction Supply, Inc.

2.1.5 Void Forms: Biodegradable paper surface, tre ated for

moisture resistance, structurally sufficient to sup port weight of plastic concrete and other superimposed l oads.

2.1.6 Form Ties: Form ties and spreaders: prefabric ated assemblies by Richmond; Superior, Dayton or approved equal. W ire ties shall not be used. Ties for foundation work shall be of snap design with removal cones and water seal washe r.

Furnish units that will leave no corrodible metal c loser than 2 inches to the plane of exposed concrete surf ace.

1. Furnish ties that, when removed, will leave hole s no larger than 1 inch in diameter in concrete surface.

2. Furnish ties with integral water-barrier plates to walls indicated to receive dampproofing or waterproofing.

2.2 REINFORCING MATERIALS

2.2.1 Reinforcing Bars: ASTM A 615/A 615 M, Grade 6 0.

2.2.2 Weldable Reinforcing Bars: ASTM A 706/A 706M, Grade 60.

2.2.3 Galvanized Reinforcing Bars: ASTM A 767, Clas s II (2.0 oz.

zinc psf) Class I (3.0 oz. zinc psf) hot-dip galvan ized, after fabrication and bending.

2.2.4 Epoxy-Coated Reinforcing Bars: ASTM A 775 (as noted on plan and/or in section).

2.2.5 Steel Wire and Welded Wire Reinforcement: AST M A 1064.

Galvanized at exterior locations, conditions perman ently exposed to weather and/or water, and where noted on drawings (plan and/or sections).

2.2.6 Joint Dowel Bars: ASTM A 615/A 615M, Grade 6 0 , plain-steel bars, cut true to length with ends square and free of burrs.

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

2.2.8 Epoxy Repair Coating: Liquid, two-part, epox y repair

coating; compatible with epoxy coating on reinforce ment and complying with ASTM A 775/A 775M.

2.2.9 Zinc Repair Material: ASTM A 780, zinc-based solder, paint containing zinc dust, or sprayed zinc.

Section 03 30 00 Page 15

2.2.10 Supports for Reinforcement: Bolsters, chairs , spacers and other devices for spacing, supporting and fastening reinforcing bars and welded wire reinforcement in p lace.

Use wire bar type supports complying with CRSI specifications.

a. For epoxy coated reinforcement provide plastic protected chairs and plastic ties. All imperfectio ns in the epoxy coating are to be repaired prior to placement of concrete.

1. Use recycled plastic rebar supports (give prefer ence to local supplier if available). Subject to compliance with requirements, provide one of the following:

a. International Plastics Group

b. Eclipse Plastic

b. For exposed-to-view concrete surfaces, where leg s of supports are in contact with forms, provide support s with legs which are plastic protected (CRSI, Class I) or stainless steel protected (CRSI, Class 2), at a spacing not to exceed 4'-0" on center in either direction.

2.3 CONCRETE MATERIALS

2.3.1 Portland cement: ASTM C 150, Types I, II, or I/II. Total percentage of Portland Cement is NOT to exceed 75% of the cementitious mix. Use one brand of cement throughou t project, unless otherwise acceptable to Government. Provide either fly ash or GGBF in mix per sections below.

a. Fly Ash: Cast-in-place concrete shall incorpora te fly ash as a replacement for at least 25% (by weight) o f the Portland cement. All design mixes must be revi ewed and approved by the Engineer of Record. Fly Ash sh all not be used in conjunction with Ground Granulated B last Furnace Slag.

b. Ground Granulated Blast Furnace Slag (GGBF): Ca st-in-place concrete shall incorporate GGBF as a replacem ent for at least 40% (by weight) of the Portland cement .

All design mixes must be reviewed and approved by t he Engineer of Record. GGBF shall not be used in conjunction with Fly Ash.

c. Pozzolans and Slags: These must be completely accounted for in the design mix. Mix design must m eet minimum design requirements set in the contract documents. Additional admixtures may be required t o meet early strength requirements and alternative

Section 03 30 00 Page 16 cementitious material goals. If a "blended cement" is used which already contains a certain percentage of Pozzolans or Slags this content may offset or entir ely satisfy the minimum percentage required.

1. Coal Fly Ash: ASTM C 618 (Class C or Class F): A STM C 618 (Note: Class F fly Ash will require higher amounts or air entraining ad-mixtures than class C) .

2. Blast Furnace Slag: ASTM C989

3. Silica Fume: ASTM C 1240

4. Rice Hull (or “husk”) Ash: ASTM C 618 Blended hydraulic cement, as defined by ASTM C 595 or ASTM C

2.3.2 Normal Weight Aggregates: ASTM C 33, and as h erein

specified. Provide aggregates from a single source for exposed concrete.

a. Local aggregates not complying with ASTM C 33 bu t which have shown by special test or actual service to pro duce concrete of adequate strength and durability may be used when acceptable to Government.

b. Normal weight Fine Aggregate: washed, inert, nat ural or manufactured or combination thereof, sand conformin g ASTM C33 gradation.

c. Normal weight Coarse Aggregate: well graded crus hed stone or washed gravel conforming to ASTM C33, size s 57 for foundations and 67 for slabs and structure.

1. Recycled crushed concrete aggregate in concrete mixes is only to be used with approval of Engineer of Record. Recycled aggregate shall be used only as a substitute for coarse aggregate and must also be washed and well-graded, conforming to ASTM C33.

2. For sub-base, slabs on grade and non-structural applications and Recycled Aggregate Materials are N OT required to meet the ASTM C 33 standard. In additi on to concrete rubble, glass, porcelain, and tire chip s can be used as filler material. Any inert material conforming to ASTM D1241 is acceptable for the applications described in this paragraph.

2.3.3 Lightweight Aggregates: Well-graded crushed e xpanded shale produced by rotary kiln method. Solite or equal, c onforming to ASTM C330.

2.3.4 Water: Water used for production of concrete shall be

potable water that does not contain oils, acids, al kali, organic matter or any other material or matter not

Section 03 30 00 Page 17 specifically approved by the Contracting Officer fo r production of concrete.

2.3.5 Air-Entraining Admixture: ASTM C 260.

a. Liquid air-entrainment: Subject to compliance wi th requirements, provide one of the following or equal approved by Engineer of Record:

1. “Airmix” Euclid Chemical

2. “Darex AEA” W. R. Grace

3. “MB-VR” Master Builders

2.3.6 Water-Reducing Admixture: ASTM C 494.

a. Products: Subject to compliance with requiremen ts, provide one of the following or equal approved by Engineer of Record:

1. “MasterPolyheed 997” Master Builders

2. “Euclid MR” Euclid Chemical

3. “WRDA 64” W. R. Grace.

2.3.7 High-Range Water-Reducing Admixture (Superpla sticizer): ASTM C 494, Type F or Type G and containing not more tha n 0.05 percent chloride ions.

a. Products: Subject to compliance with requiremen ts, provide one of the following or equal approved by Engineer of Record:

1. "Eucon 37, 1037 or Plastol 5000" Euclid Chemical Co.

2. "Rheobuild 1000" Master Builders

3. "Glenium 7500" Master Builders

4. "Daracem-100" W. R. Grace

2.3.8 Water Reducing, Non-Corrosive Accelerating Ad mixture: The admixture shall conform to ASTM C 494, Type C or E, and not contain more chloride ions than are present in muni cipal drinking water. The admixture manufacturer must ha ve long-term non- corrosive test data from an independent t esting laboratory (of at least a year's duration) using an acceptable accelerated corrosion test method such a s that using electrical potential measures. Accelerating admixtures are not to be used as antifreeze agents.

Accelerating admixtures are permitted only upon rev iew by Engineer of Record.

a. Products: Subject to compliance with requiremen ts, provide the following or equal approved by Engineer of Record:

Section 03 30 00 Page 18

1. "Accelguard 80" Euclid Chemical Co.

2. "Daraset” W. R. Grace

3. “Pozzutec 20” Master Builders.

2.3.9 Water-Reducing, Retarding Admixture: ASTM C 4 94, Type D, and contain not more than 0.05 percent chloride ions.

a. Products: Subject to compliance with requiremen ts, provide one of the following or equal approved by Engineer of Record:

1. "Eucon Retarder 75" Euclid Chemical Co.

2. "Pozzolith 100XR" Master Builders.

3. "Plastiment" Sika Chemical Co.

4. "Daratard" W.R. Grace.

2.3.10 Microsilica Admixture shall be dry densified or slurry formed. Microsilica shall come from the same sourc e throughout the project. If a single source cannot be maintained, laboratory testing of each new source s hall be required before acceptance by the Engineer of Recor d at no cost to the owner.

a. Products: Subject to compliance with requiremen ts, provide one of the following or equal approved by Engineer of Record:

1. "Emsac F 100" Elkem Chemical, Inc.

2. "Eucon MSA" Euclid Chemical Co.

3. "Force 10,000" W. R. Grace

2.3.11 Prohibited Admixtures: Calcium chloride, thy ocyanates or admixtures containing more than 0.05 percent chlori de ions are not permitted.

2.3.12 Certification: Written conformance to the a bove-mentioned requirements and the chloride ion content of admixt ures will be required from the admixture manufacturer prior t o mix design review by the Engineer of Record.

2.3.13 Corrosion Inhibitor: 30% calcium nitrite (wh ere called for in the specifications or on the drawings). Subject to compliance with requirements, provide the following at 3 gal/cy:

a. Eucon CIA Euclid Chemical

b. “DCI” W. R. Grace

c. “Rheocrete CNI” Master Builders.

Section 03 30 00 Page 19

2.3.14 Contractor will be required to provide infor mation

demonstrating successful use in prior placement inv olving all admixtures.

2.4 WATERSTOPS

2.4.1 Waterstop between existing and new concrete c onstruction:

Thermoplastic vulcanizate “L”-shaped retrofit syste m waterstop for construction joints.

a. Product: Provide the following:

1. “JP 336L” EarthShield Chemical Resistant Waterst op

2.5 GROUT

2.5.1 Non-Shrink, Non-Metallic Grout: The non-shrin k grout shall be a factory pre-mixed grout and shall conform to A STM C1107, "Standard Specification for Packaged Dry, Hy draulic- Cement Grout (Non-Shrink)." In addition, the grout manufacturer shall furnish test data from an indepe ndent laboratory indicating that the grout when placed at a fluid consistency shall achieve 95% bearing under a 4' x 4' base plate.

a. Products: Subject to compliance with requiremen ts, provide one of the following or equal approved by Engineer of Record:

1. "Euco-NS" Euclid Chemical Co.

2. "Five Star Grout" U.S. Grout Corp.

3. "Masterflow 713 Plus" BASF

2.5.2 High Flow Grout: Where high fluidity and/or i ncreased

placing time is required, use high flow grout. The factory pre-mixed grout shall conform to ASTM C1107, "Stand ard Specification for Packages Dry, Hydraulic-Cement Gr out (Non-shrink)." In addition, the grout manufacturer shal l furnish test data from an independent laboratory indicating that the grout when placed at a fluid consistency shall achi eve 95% bearing under a 18" x 36" base plate.

a. Products: Subject to compliance with requiremen ts, provide one of the following or equal approved by Engineer of Record:

1. "Euco Hi-Flow Grout" Euclid Chemical Co.

2. "Masterflow 928" BASF

3. “Five Star Fluid Grout 100” Five Star

2.6 RELATED MATERIALS

Section 03 30 00 Page 20

2.6.1 Granular Fill: Clean mixture of crushed ston e or crushed or uncrushed gravel; ASTM D 1241, Size 57, with 100 pe rcent passing a 1-1/2 inch sieve and 0 to 5 percent passing a No. 8 sieve.

2.6.2 Fine-Graded Granular Material: Clean mixture of crushed stone, crushed gravel, and manufactured or natural sand;

ASTM D 1241, Size 10, with 100 percent passing a 3/ 8 inch sieve, 10 to 30 percent passing a No. 100 sieve, and less than 5 percent passing No. 200 sieve; complying with deleterious substance limits of ASTM C 33 for fine aggregates.

2.6.3 Non-slip Aggregate Finish: Provide fused alum inum oxide grits, or crushed emery, as abrasive aggregate for non-slip finish with emery aggregate containing not less tha n 40% aluminum oxide and not less than 25% ferric oxide. Use material that is factory-graded, packaged, rustproo f and non-glazing, and is unaffected by freezing, moistur e, and cleaning materials.

2.6.4 Absorptive Cover: Burlap cloth made from jute or kenaf, weighing approximately 9 oz. per sq. yd., complying with AASHTO M 182, Class 2.

2.6.5 Moisture-Retaining Cover: One of the followin g, complying with ASTM C 171.

a. Products: Subject to compliance with requiremen ts, provide one of the following:

1. Waterproof paper

2. Polyethylene film

3. Polyethylene-coated burlap

2.6.6 Curing Compounds: The compound shall conform to ASTM C 309.

Limit VOC content to 130 g/L. Use water-based curin g compound. For surfaces receiving both a curing comp ound and additional flooring, verify that the curing compoun d and additional flooring are compatible.

a. Products: Subject to compliance with requiremen ts, provide one of the following or equal approved by Engineer of Record:

1. “SealTight 1100” W.R. Meadows

2. “Kurez W VOX” Euclid Chemical Co.

3. “Everclear VOX” Euclid Chemical Co.

4. “VOCOMP-25” W.R. Meadows

Section 03 30 00 Page 21

2.6.7 Curing & Sealing Compounds: Only specify for slabs that will remain exposed, i.e. will not receive additional fl ooring.

The compound shall conform to ASTM C1315. Limit VO C content to 130 g/L. Use water-based curing compound.

a. Products: Subject to compliance with requiremen ts, provide one of the following or equal approved by Engineer of Record:

1. “Everclear VOX” Euclid Chemical Co.

2. “VOCOMP-25” W.R. Meadows

2.6.8 Sealers/Hardeners: For use on concrete surfac es that will remain exposed. Slabs that will receive additional flooring do not require sealing or hardening. Sealers and h ardeners must not yellow under ultra violet light after 500 hours of test and have a maximum moisture loss of 0.039 gram s per sq.

cm. when applied at a coverage rate of 250 sq. ft. per gallon. Limit VOC content to 130 g/L. Use water- or vegetable-based product.

a. Products: Subject to compliance with requiremen ts, provide one of the following or equal approved by Engineer of Record:

1. “Kure-N-Harden” BASF

2.6.9 Liquid Sealer/Densifiers: For concrete floors subjected to heavy vehicular traffic use a Liquid Sealer/Densifi er: The product must be a high performance, deeply penetrat ing concrete densifier conforming to ASTMC836; odorless , colorless, VOC - compliant, non-yellowing siliconat e based solution designed to harden, dustproof and protect and to resist black rubber tire marks on concrete surfaces . The compound must contain a minimum of 20% solids conte nt of which 50% is siliconate.

2.6.10 Evaporation Retardant:

a. Products Subject to compliance with requirements , provide one of the following or equal approved by Engineer of Record:

1. "Eucobar" Euclid Chemical Co.

2. "Confilm" BASF

2.6.11 Certify that all curing compounds, sealers a nd hardeners are compatible with all adhesive products intended for attaching co-lateral floor material. In conformance with AST M F 710, coordination with flooring manufacturer is required to insure concrete coatings will not obstruct the bond between

Section 03 30 00 Page 22 the concrete and the adhesive. Ensure coatings and adhesives are “benignly compatible” -- in other wor ds, do not combine substances whose constituents are react ive.

Reactivity releases VOCs and /or other toxic fumes.

2.6.12 Crack Sealer: Elastomeric liquid crack seale r resistant to water, gasoline, oil and salts.

a. Products: Subject to compliance with requiremen ts, provide one of the following or equal approved by Engineer of Record:

1. "Eucolastic 1NS" Euclid Chemical Co.

Maximum allowable depth of this product is ½”.

2.6.13 Underlayment Compound: Free flowing, self-le veling, pumpable cementitious base compound.

a. Products: Subject to compliance with requiremen ts, provide the following or equal approved by Engineer of Record:

1. "Flo-Top 90 or Super Flo-Top" Euclid Chemical Co .

2. "Ardex" Ardex Co.

3. "Underlayment 110" Master Builders

2.6.14 Bonding Admixture: The compound shall be a l atex, non-rewettable type.

a. Products: Subject to compliance with requiremen ts, provide one of the following or equal approved by Engineer of Record:

1. "Flex-Con" Euclid Chemical Co.

2. "Daraweld C” W.R. Grace

3. "SBR Latex" Euclid Chemical Co.

2.6.15 High Strength Polymer Repair Mortar: For for m and pouring or large horizontal repairs, provide the flowable on-p art, high-strength repair mortar.

a. Products: subject to compliance with requirement s, provide the following or equal approved by Engineer of Record:

1. "Eucocrete" The Euclid Chemical Co.

2. "Euco Speed MP" (Cold Weather) The Euclid Chemi cal

Co.

3. “Emaco R” Master Builders.

Section 03 30 00 Page 23

2.6.16 Bonding Agent: ASTM C 1059/C 1059M, Type II , non-

redispersible, acrylic emulsion or styrene butadien e.

2.6.17 Epoxy Bonding Adhesive: ASTM C 881, two-com ponent epoxy resin, capable of humid curing and bonding to damp surfaces, of class suitable for application temperature and o f grade to suit requirements, and as follows:

a. Type IV for bonding hardened concrete to hardene d concrete, and Type V for bonding freshly mixed conc rete to hardened concrete.

2.6.18 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 conc rete or debris.

2.6.19 Dovetail Anchor Slots: Hot-dip galvanized-s teel sheet, not less than 0.034 inch thick, with bent tab anchors.

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

2.6.20 Vapor Barrier: Provide vapor barrier which conforms to ASTM E 1745, Class A or B. The membrane shall have a wa ter-vapor permeance rate no greater than 0.012 perms when tes ted in accordance with ASTM E 154, Section 7. The vapor b arrier shall be placed over prepared base material where i ndicated below slabs on grade. Vapor barrier shall be no le ss than 10 mil thick in accordance with ACI 302.1R. Prefer red vapor barriers will be manufactured from post-consumer re cycled polymers.

a. Products: Subject to compliance with requireme nts, provide one of the following or equal approved by Engineer of Record:

1. “Stego Wrap (15 mil) Vapor Barrier” Stego Indust ries

LLC

2. “Griffolyn Vaporguard” Reef Industries

3. “Premoulded Membrane with Plastmatic Core” W.R .

Meadows.

2.6.21 Expansion Joint Filler: ASTM D 1751.

a. Products: Subject to compliance with requireme nts, provide one of the following or equal approved by Engineer of Record:

1. “Homex 300” Homasote Company

2. “Standard Cork Expansion Joint Filler” APS Cork

3. “Fibre Expansion Joint” W.R. Meadows

Section 03 30 00 Page 24

2.7 PROPORTIONING AND DESIGN OF MIXES

2.7.1 Preparation of Design Mixes

a. All mix designs shall be proportioned in accorda nce with Section 5.3, "Proportioning on the Basis of Fi eld Experience and/or Trial Mixtures" of ACI 318 and prepared by a licensed testing laboratory approved by the Contracting Officer, but paid for by the contractor. Submit mix designs on each class of concrete for review.

b. If previously used mixes are submitted, all mate rials shall be from the same sources and with the same br and names as the previously utilized mix.

c. If trial batches are used, the mix design shall be prepared by an independent testing laboratory and s hall achieve an average compressive strength 1200 psi hi gher than the specified strength. This over-design shal l be increased to 1.10f’c+700 psi when concrete strength s greater than 5000 psi are used.

d. The proposed mix designs shall be accompanied by complete standard deviation analysis or trial mixtu re test data.

2.7.2 Submit each proposed mix to the Contracting O fficer and Engineer of Record for review at least 5 days prior to the pre-concrete conference. Do not begin concrete prod uction until Contracting Officer and Engineer of Record ha s reviewed and approved mixes.

a. Submit Test reports for any pozzolans or slags indicating compliance with ASTM C 618 or ASTM C 989 , respectively.

b. Provide cut sheets clearly indicating the percen tages of pozzolans or slags used in the mix design as replacement for Portland cement. Or, if cut sheets are not available, obtain a written affidavit from the manufacturer stating the percentage.

c. Test reports for recycled aggregate indicating compliance with ASTM C 33. Provide cut sheets clea rly indicating the percentage of aggregates used that a re recycled. Or, if cut sheets are not available, obt ain a written affidavit from the manufacturer stating t he recycled content percentage and source or sources o f the material.

d. Provide cut sheets clearly indicating the percen tage of sub-base and filler aggregate materials that are recycled. Or, if cut sheets are not available, obt ain

Section 03 30 00 Page 25 a written affidavit from the manufacturer stating t he recycled content percentage and source or sources o f the material.

2.7.3 Design mixes to provide concrete with strengt h as indicated on drawings and schedules.

2.7.4 Adjustment to Concrete Mixes: Mix design adju stments may be requested by Contractor when characteristics of mat erials, job conditions, weather, test results, or other circumstances warrant; at no additional cost to Own er and as accepted by Contracting Officer and Engineer of Rec ord.

Laboratory test data for revised mix design and str ength results must be submitted to and accepted by Contra cting Officer and Engineer of Record before using in work .

2.7.5 Admixtures:

a. Use water-reducing admixture or high range water -reducing admixture (superplasticizer) in all concre te as required for placement and workability.

b. Use non-corrosive, non-chloride accelerating adm ixture in concrete slabs placed at ambient temperatures be low 50οF (10 οC).

c. Use high-range water-reducing admixture in pumpe d concrete, Governmentural concrete, parking structur e slabs, fiber concrete, concrete required to be watertight, concrete with ultimate strength of 5,00 0 psi or more, and concrete with water/cement ratios below 0.50.

d. Use air-entraining admixture in exterior exposed concrete, unless otherwise indicated. Exposure category for exterior concrete is F1. Add air-entraining admixture at manufacturer's prescribed r ate to result in concrete at point of placement having total air content with a tolerance of plus-or-minus 1- 1/2 percent within following limits:

1. Concrete structures and slabs exposed to freezin g and thawing or deicer chemicals.

a. 4.5 percent (exposure class F1, moderate exposure); 5.5 percent (exposure class F2 and F3, severe exposure): 1-1/2” maximum aggregate

b. 4.5 percent (exposure class F1, moderate exposure); 6 percent (exposure class F2 and F3, severe exposure): 1” maximum aggregate

c. 5 percent (exposure class F1, moderate exposure) ;

6 percent (exposure class F2 and F3, severe exposure): 3/4” maximum aggregate

Section 03 30 00 Page 26

d. 5.5 percent (exposure class F1, moderate exposure); 7 percent (exposure class F2 and F3, severe exposure): 1/2” maximum aggregate

e. 6 percent (exposure class F1, moderate exposure) ;

7.5 percent (exposure class F2 and F3, severe exposure): 3/8” maximum aggregate

2. Other Concrete: (not exposed to freezing, thawi ng, or hydraulic pressure): 2 percent to 4 percent air.

e. Use admixtures for water-reducing and set-contro l in strict compliance with manufacturer's directions.

2.7.6 Water-Cement Ratio: Provide concrete for foll owing

conditions with maximum water-cement (W/C) ratios a s follows:

a. Concrete for precast slabs, precast beams, struc tural topping slab, caisson caps, caissons, poured in pla ce slabs and grade beams, columns and walls, over wate r, on ground or exposed to weather: W/C 0.40.

b. Concrete on metal deck:

1. With specified minimum compressive strength not greater than 5,000 psi: 0.40.

2. With specified minimum compressive strength not greater than 7,000 psi: 0.35.

c. “Quick Dry” Concrete: 0.40.

d. Subjected to freezing and thawing; W/C 0.45.

e. Subjected to deicers/watertight: W/C 0.45.

f. Reinforced concrete subjected to brackish water, salt spray or deicers; W/C 0.40.

2.7.7 Slump Limits: Proportion and design mixes to result in

concrete slump at point of placement as follows:

a. Ramp slabs and sloping surfaces: Not more than 3 ".

b. Reinforced foundation systems, including mud sla bs below hydrostatic slabs: Not less than 1" and not m ore than 3".

c. Concrete containing HRWR admixture (superplastic izer):

Not more than 9" unless otherwise approved by the Government. The concrete shall arrive at the job s ite at a slump of 2" to 3" (3" to 4" for concrete recei ving a "shake-on" hardener or lightweight concrete), be verified, then the high-range water-reducing admixt ure added to increase the slump to the approved level.

d. Other Concrete: Not less than 1" or more than 4" .

Section 03 30 00 Page 27

2.7.8 Chloride Ion Level: Chloride ion content of a ggregate shall be tested by the laboratory making the trial mixes. The total chloride ion content of the mix including all constituents shall not exceed the limitations set f orth in Table 4.4.1 of ACI 318 for concrete subjected to de icers or exposed to chloride in service (0.15% chloride ions by weight of cement).

2.8 CONCRETE MIXING

2.8.1 Ready-Mix Concrete: Comply with requirements of ASTM C 94, and as herein specified.

2.8.2 Provide batch ticket for each batch discharge d and used in work, indicating project identification name and nu mber, date, mix type, mix time, quantity, and amount of w ater introduced.

2.8.3 During hot weather, or under conditions contr ibuting to rapid setting of concrete, a shorter mixing time th an specified in ASTM C 94 may be required. When air temperature is between 85 οF (30 οC) and 90 οF (32 οC), reduce maximum mixing and delivery time from 1-1/2 hours t o 75 minutes, and when air temperature is above 90 οF (32 οC), reduce maximum mixing and delivery time to 60 minut es.

2.8.4 No water shall be added after mixing to concr ete containing HRWR (Superplasticizer). If loss of slump occurs, the concrete treated with HRWR may be redosed as long a s a "flash set" has not occurred. Redosage procedures must be discussed and approved by the Engineer of Record an d the manufacturer.

PART 3 - EXECUTION

3.1 GENERAL

3.1.1 Coordinate the installation of joint material s and vapor retarders with placement of forms and reinforcing s teel.

3.2 INSPECTION

3.2.1 Examine all work prepared by others to receiv e work of this section and report any defects affecting installati on to the Contractor for correction. Commencement of work wi ll be construed as complete acceptance of preparatory wor k by others.

3.3 CONCRETE

Section 03 30 00 Page 28

3.3.1 Concrete shall develop the minimum compressiv e strengths shown on drawings at 28 days when sampled and teste d in accordance with ASTM C 31 and C 39 with the maximum slump in accordance with the approved mix design.

3.3.2 Concrete shall be in accordance with the requ irements and specifications of "Building Code Requirements for S tructural Concrete" as modified by the building code noted ab ove.

3.3.3 Fly Ash Concrete & Slag Concrete: Concrete mi xes containing high volumes of fly ash or Slag have slower set tim es and may take up to 56 days to reach full strength.