26-0145 Attachment C- E2 Specifications.pdf

Project Manual

Southwest K-8 School

Bid Release 2 100% Construction Documents

Detroit Public Schools Community District Detroit, Michigan

A/E Project No. 223012.01 Book 2 of 3

Divisions 03 - 14 August 21, 2025

223012.01 00 01 05-1 CERTIFICATIONS PAGE

CERTIFICATIONS PAGE

TITLE AND LOCATION OF THE WORK

Southwest K-8 School 7735 Lane Street Detroit, Michigan 48209

NAME AND ADDRESS OF OWNER

Detroit Public Schools Community District 3011 W. Grand Blvd.

Detroit, Michigan 48202

NAME AND ADDRESS OF ARCHITECTS/ENGINEERS

Fanning/Howey Associates, Inc.

150 Vester Avenue, Suite 201 Ferndale, MI 48220

I hereby certify that the Project Drawings and the Project Manual were prepared by me or under my direct supervision and that I am a duly registered Architect/Engineer under the Laws of the State of Michigan.

FANNING/HOWEY ASSOCIATES, INC.

ARCHITECTS/ENGINEERS

Paul A. Miller Architect No. 1301072721

Architectural, Interiors, Site/Landscape

Date: August 21, 2025

223012.01 00 01 05-2 CERTIFICATIONS PAGE

©Fanning/Howey Associates, Inc. 2025, All Rights Reserved. No portion of these drawings, specifications or contact documents may be reproduced, transformed, recast, or otherwise copied – specifically including scanning or other digitizing means – without the prior written consent of Fanning/Howey Associates, Inc. These drawings, specifications, or contract documents may be used only in connection with the construction project identified thereon and then only in accordance with the architectural and building contracts then in force. No other use of these drawings, specifications, or contract documents may be made without the prior written consent of Fanning/Howey Associates, Inc.

END OF CERTIFICATION PAGE

223012.01 00 01 05-1 CERTIFICATIONS PAGE

CERTIFICATIONS PAGE

TITLE AND LOCATION OF THE WORK

Southwest K-8 School 7735 Lane Street Detroit, Michigan 48209

NAME AND ADDRESS OF OWNER

Detroit Public Schools Community District 3011 W. Grand Blvd.

Detroit, Michigan 48202

NAME AND ADDRESS OF ARCHITECTS/ENGINEERS

Resurget Engineering 28 W. Adams Ave Suite 1710 Detroit, Michigan 48226

I hereby certify that the Project Drawings and the Project Manual were prepared by me or under my direct supervision and that I am a duly registered Architect/Engineer under the Laws of the State of Michigan.

Structural

Date: August 21, 2025

223012.01 00 01 05-2 CERTIFICATIONS PAGE

© 2025, All Rights Reserved. No portion of these drawings, specifications or contact documents may be reproduced, transformed, recast, or otherwise copied – specifically including scanning or other digitizing means – without the prior written consent of Resurget Engineering. These drawings, specifications, or contract documents may be used only in connection with the construction project identified thereon and then only in accordance with the architectural and building contracts then in force. No other use of these drawings, specifications, or contract documents may be made without the prior written consent of Resurget Engineering.

END OF CERTIFICATION PAGE

223012.01 00 01 10-1 TABLE OF CONTENTS

DOCUMENT 00 01 10 - TABLE OF CONTENTS

INTRODUCTORY INFORMATION

00 01 05 Certifications Page 00 01 10 Table of Contents

SPECIFICATIONS

DIVISION 03: CONCRETE

03 30 00 Cast-in-Place Concrete 03 30 53 Concrete Curbing - Playground

DIVISION 04: MASONRY

04 20 00 Unit Masonry 04 72 00 Cast Stone Masonry

DIVISION 05: METALS

05 12 00 Structural Steel Framing (Bid Package 1, for reference only) 05 21 00 Steel Joist Framing (Bid Package 1, for reference only) 05 31 00 Steel Decking (Bid Package 1, for reference only) 05 40 00 Cold-Formed Metal Framing 05 50 00 Metal Fabrications 05 51 00 Metal Stairs (Bid Package 1, for reference only) 05 52 13 Pipe and Tube Railings

DIVISION 06: CARPENTRY

06 10 00 Rough Carpentry 06 16 00 Sheathing 06 20 23 Interior Finish Carpentry 06 41 16 Plastic-Laminate-Faced Architectural Cabinets 06 61 16 Solid Surface Fabrications 06 64 00 Plastic Paneling

DIVISION 07: THERMAL AND MOISTURE PROTECTION

07 13 26 Self-Adhering Sheet Waterproofing (Bid Package 1, for reference only) 07 21 00 Thermal Insulation 07 25 00 Weather Barriers 07 27 26.02 Vapor-Permeable, Fluid-Applied Membrane Air Barrier 07 42 13 Metal Wall Panels 07 53 23 Ethylene-Propylene-Diene-Monomer (EPDM) Roofing 07 62 00 Sheet Metal Flashing and Trim 07 71 00 Roof Specialties 07 72 00 Roof Accessories 07 84 13 Penetration Firestopping 07 84 43 Joint Firestopping 07 92 00 Joint Sealants 07 92 19 Acoustical Joint Sealants 07 95 13.13 Interior Expansion Joint Cover Assemblies

223012.01 00 01 10-2 TABLE OF CONTENTS

DIVISION 08: OPENINGS

08 11 13 Hollow Metal Doors and Frames 08 14 16 Flush Wood Doors 08 16 13 Fiberglass Doors 08 31 13 Access Doors and Frames 08 33 23 Overhead Coiling Doors 08 41 13 Aluminum-Framed Entrances and Storefronts 08 44 13 Glazed Aluminum Curtain Walls 08 71 00 Door Hardware 08 80 00 Glazing 08 81 13 Decorative Glass Glazing 08 87 23 Safety and Security Film 08 91 19 Fixed Louvers

DIVISION 09: FINISHES

09 01 91 Moisture Resistant/Water-Proof Flooring Adhesive for Concrete Slabs 09 21 16 Gypsum Board Assemblies 09 30 00 Tiling 09 51 13 Acoustical Panel Ceilings 09 65 13 Resilient Base and Accessories 09 65 16 Resilient Sheet Flooring 09 65 19 Resilient Tile Flooring 09 65 43 Linoleum Flooring 09 65 66 Resilient Athletic Flooring 09 67 11 Fluid-Applied Cementitious Urethane Flooring (Kitchen) 09 67 23 Decorative Resinous Flooring (Aggregate) 09 68 13 Tile Carpeting 09 72 16 Vinyl-Coated Fabric Wall Coverings 09 84 33 Sound-Absorbing Wall Units 09 84 33.13 Abuse-Resistant Sound-Absorbing Wall Units 09 91 23 Interior Painting 09 96 00 High-Performance Coatings 09 96 72 Fluid Applied Insulation Coating

DIVISION 10: SPECIALTIES

10 11 00 Visual Display Units 10 13 00.16 Exterior Directories 10 14 19 Dimensional Letter Signage 10 14 23.16 Interior Panel Signage 10 14 26 Post and Panel Signage 10 14 53 Traffic Signage 10 21 13.19 Solid Polymer Toilet Compartments 10 21 23 Cubicles 10 26 00 Wall and Door Protection 10 28 00 Toilet, Bath, and Laundry Accessories 10 41 16 Lock Box 10 43 13 Defibrillator Cabinets 10 44 13 Fire Extinguisher Cabinets 10 44 16 Fire Extinguishers 10 51 13 Metal Lockers 10 75 00 Flagpoles 10 82 13 Rooftop Equipment Screens

223012.01 00 01 10-3 TABLE OF CONTENTS

DIVISION 11: EQUIPMENT

11 31 00 Residential Appliances 11 40 00 Food Service Equipment 11 52 13 Front Projection Screens 11 61 43 Stage Curtains 11 66 00 Athletic Equipment 11 66 43 Interior Scoreboards

11 68 00 Playground Equipment 11 68 13 Playground Safety Surfacing 11 68 33 Athletic Field Equipment

DIVISION 12: FURNISHINGS

12 24 13 Roller Window Shades 12 32 16 Manufactured Plastic Laminate-Faced (Educational) Casework 12 48 26.01 Entrance Carpet Tile 12 66 00 Telescoping Stands 12 93 00 Site Furnishings and Amenities

DIVISION 14: CONVEYING SYSTEMS

14 24 00 Hydraulic Elevators

END OF TABLE OF CONTENTS

223012.01 03 30 00 - 1 CAST-IN-PLACE CONCRETE

SECTION 03 30 00 – CAST-IN-PLACE CONCRETE

PART 1 - GENERAL

1.1 SUMMARY

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

1. Exterior Concrete

a. Ramps, steps, and stoops

b. Light pole bases

c. Equipment pads

2. Substructure.

3. Slabs-on-ground

4. Slabs on metal deck

5. Superstructure.

6. Ramps, bases, curbs, risers, and steps.

7. Provide other cast-in-place concrete and related work as indicated for complete and finished work, except concrete work specifically designated to be provided under Work of other Sections of these Specifications.

B. Related Sections include the following:

1. Division 04 Section “Unit Masonry” for unit masonry construction.

2. Division 05 Section “Structural Steel Framing” for steel framing and post-installed concrete anchors.

3. Division 05 Section “Steel Decking” for metal decks.

4. Division 31 Section "Earth Moving" for drainage fill under slabs-on-grade.

5. Division 32 Section "Concrete Paving" for concrete pavement and walks.

1.2 DEFINITIONS

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

1.3 SUBMITTALS

A. General:

1. Review of submittals is of a general nature only, and the responsibility for conformance with intent of drawings shall remain with the Contractor. Review does not imply or state that the fabricator has correctly interpreted the construction documents.

2. All submissions shall be in accordance with the submission schedule developed and agreed between the Architect and Contractor at the commencement of the project.

Submission shall include dates of order and delivery of materials to the shop and the site.

3. Shop drawing schedule shall allow adequate time for reviews. Reinforcing steel shall not be fabricated or placed before the shop drawings have been reviewed by the Architect and returned.

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

C. Design Mixtures: Each concrete mix design to be used on the project shall be reviewed and approved by the Testing Agency and Architect prior to concrete being delivered to site.

Submit proposed mix designs for each class of concrete on the Mix Design submittal form included at the end of this specification. Submit alternate design mixtures when characteristics of materials, Project conditions, weather, test results, or other circumstances warrant adjustments.

223012.01 03 30 00 - 2 CAST-IN-PLACE CONCRETE

1. For each concrete mixture, the following information shall be included: where the mix is to be used, all materials and admixtures including their source and proportions in the mix; Water content, water-to-cement ratio, slump, and aggregate grading; whether the mixture is appropriate for pumping; and total chloride content.

2. Provide shrinkage test results for mixes with shrinkage criteria showing that mix meets performance criteria. The mix design number must match with the mix design number shown on the test data.

3. Indicate compressive strength and method used to determine strength. The compressive strength of the concrete shall be proportioned per ACI. Include all calculations and tests required by ACI 318 Section 5.3 and 5.4. Laboratory test data must be submitted along calculations that show with each mix design meets the strength requirement. Mix design number must match the mix design number shown on the test data. Include all test results or past history back up data specific as part of the submittal. Test results within the past two years shall be used to indicate performance in accordance with past history.

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

5. Each mix shall be stamped and signed by a Professional Engineer licensed in the

State of Michigan.

D. Steel Reinforcement Shop Drawings: Placing drawings in accordance with SP 66 that detail fabrication, bending, and placement. Direct copies of the contract documents are not acceptable as a submission from the Contractor.

1. Include bar sizes, lengths, material, grade, bar schedules, stirrup spacing, bent bar diagrams, bar arrangement, splices and laps, mechanical connections, tie spacing, hoop spacing, and supports for concrete reinforcement. Include any welding to be done.

2. Shop drawings shall make it clear where each bar is located. Beams, grade beams and walls shall be shown in elevation. On elevations show locations of sleeves and penetrations.

3. Check architectural, structural, mechanical, and electrical and other contract documents for anchor bolt schedules and locations, anchors, inserts, conduits, sleeves, and any other items which are required to be cast in concrete, and make necessary provisions as required so that reinforcing steel will not interfere with the placement of such embedded items.

4. Show all areas of congestion. Identify where reinforcing steel will interfere with the placement of embedded items such as anchor bolts, anchors, inserts, conduits, sleeves and any other items which are required to be cast in concrete.

E. Submit schedule of concrete placement operations before commencing Work.

F. Show on one or more plans and/or elevations, locations of construction, contraction and expansion of joints, slab edges, curbs, equipment pads, depressions, sleeves and openings.

G. Formwork: Prepared by or under the supervision of a qualified professional engineer detailing fabrication, assembly, and support of formwork.

1. Design Criteria:

a. Design of concrete formwork, shoring, reshoring and bracing shall be the sole responsibility of the Contractor and shall conform to Code requirements and shall be in accordance with the recommendations of ACI 347. Forms shall provide the required shape and dimensions specified on the Documents.

b. Provide forms complete and of such strength and adequately braced so as to prevent any spreading, shifting or settling when concrete is placed to ensure finished concrete surfaces of the required tolerances.

c. Forms shall be tight to prevent leakage or washing out of cement mortar from concrete.

223012.01 03 30 00 - 3 CAST-IN-PLACE CONCRETE

d. Bolts, rods, and other devices when used for internal ties and spreaders shall be of such construction that when the forms are removed, no metal shall be within 1 inch of the exterior concrete surfaces or within 1/2 inch of interior concrete surfaces.

2. Shop Drawing Requirements:

a. Shop Drawings shall show location and layout of construction joints, reveals, slab edges, form joints, sleeves, openings, textures, locations of tie holes or plugs, location of embedded items and blockouts, and all related details affecting Architectural quality.

b. Shop Drawings will show dimensioned location to the face of formwork for walls, beams, columns, slab edges, slab depressions, etc.

c. Formwork details affecting Architectural finish quality shall be reviewed by the Architect.

d. Indicate where formwork release agent will be used, as applicable.

e. Where a mock-up is required, submit shop drawings of the mock-up.

H. Samples: For waterstops vapor retarder formwork, as requested by Architect Insert products.

I. Welding certificates.

J. Welding Procedures for all reinforcement welding.

K. Mill Test Reports: Submit steel producer's certificates of mill analysis for each heat or melt of reinforcing steel, including steel source, description, heat number, yield point, ultimate tensile strength, elongation percent, bend test and the chemical composition of each heat as determined by ladle analysis, before delivery of steel to site. Where steel is required to be welded, mill reports shall be used to help verify the weldability of the steel.

L. Qualification Data: For Installer manufacturer testing agency. Submit qualification of Concrete Foreman, showing 5 years experience with this type of concrete installation.

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

1. Normal weight aggregate (per ASTM C33). Include evaluation of reactivity and the following:

a. Abrasion Resistance: ASTM C131; Los Angeles Machine.

b. Cleanness Value: Test Method NO. C 227; coarse aggregate only.

c. Fineness: ASTM C117.

d. Organic Impurities: ASTM C40.

e. Potential Reactivity: ASTM C289.

f. Sand Equivalent: Test Method No. C 217.

g. Sieve Analysis: ASTM C136.

h. Soundness: ASTM C88.

i. Absorption for lightweight aggregate: Maximum 15%.

N. Product Test Reports and Certificates: For each of the following, signed by manufacturers:

1. Cementitious materials, per ASTM C150, ASTM C595, ASTM C618, ASTM C989, and/or ASTM C1240, as applicable.

2. Admixtures. Where more than one admixture is used, include certification that admixtures are compatible. Per ASTM C494 for each type used; include chloride ion content.

3. Form materials and form-release agents.

4. Steel reinforcement and accessories.

5. Welding Electrodes.

6. Fiber reinforcement.

7. Waterstops.

8. Curing compounds.

9. Floor and slab treatments.

223012.01 03 30 00 - 4 CAST-IN-PLACE CONCRETE

10. Non-shrink grout, per ASTM C1107.

11. Bonding agents.

12. Adhesives.

13. Vapor retarders.

14. Semirigid joint filler.

15. Joint-filler strips.

16. Post-installed concrete anchors.

17. Repair materials.

O. Submit a complete description of the system proposed for meeting the specified floor slab flatwork tolerances. Submit survey data from a minimum of two previous slab installations to demonstrate capability to satisfy specified tolerances.

P. Field quality-control test reports.

Q. Submit an affidavit identifying cementitious material used, including manufacturer's lot number, date of shipment by manufacturer, date of receipt by the concrete supplier, place of storage and date of use. If such information is not available, a sample of cementitious material used on the Project shall be taken for each day's pour and shall be tested as directed by the Architect.

R. Transit-Mix Delivery Slips

1. Keep record at the Site showing time and place of each pour of concrete, together with transit mix delivery slip certifying contents of the pour per ASTM C94. Include the time water was added to dry mix.

2. Make the record available for inspection at the Site and to the Architect for his review upon request.

3. Upon completion of this portion of the Work, deliver the record and the delivery slips to the Architect.

1.4 QUALITY ASSURANCE

A. Standards: Comply with the following unless modified by requirements in the Contract Documents:

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

2. ACI 301, "Specification for Structural Concrete," Sections 1 through 5. Sections 1 through 5 and Section 7, "Lightweight Concrete."

3. ACI 318, “Building Code Requirements for Reinforced Concrete.”

4. ACI SP-66, “Detailing Manual”

5. American Welding Society (AWS) D1.4, “Structural Welding Code – Reinforcing

Steel”

6. Michigan Building Code.

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

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

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

Production Facilities."

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

ASTM E 548.

1. Personnel conducting field tests shall be qualified as ACI Concrete Field Testing

Technician, Grade 1, according to ACI CP-01 or an equivalent certification program.

223012.01 03 30 00 - 5 CAST-IN-PLACE CONCRETE

2. Shop and field testing and inspection of steelwork shall be performed by an inspector currently certified as an AWS Certified Welding Inspector.

E. Testing Agency: Shall be selected and paid for by the Owner, unless otherwise specified;

re-testing paid for by the Contractor.

F. Contractor’s Quality Control Plan: Quality Control includes the functions performed by the Contractor to ensure that the material and workmanship of concrete construction meets the project specifications and applicable standards. The Contractor shall submit a Quality Control Plan that addresses all inspection issues, including testing and inspection per ACI.

The verification testing and inspection carried out by the Testing Agency does not relieve the contractor of the responsibility for conducting their own quality control/inspection program to ensure the requirements of the Contract Documents have been met. The Contractor’s Quality Control Plan will be reviewed by the Testing Agency.

G. Quality Control Inspector Qualifications: Along with Quality Control Plan, Contractor shall submit written qualifications for all inspectors to be assigned Quality Control functions for concrete work.

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

I. Unidentifiable Reinforcing Steel: Tested by testing agency; paid for by Contractor:

1. Test reinforcing delivered to site which cannot be properly identified by heat number and mill mark for compliance with ASTM A615 as follows:

a. No. 8 Bar and Smaller: One tensile test and one bend test of each size per 7-

1/2 tons, or portion thereof.

b. No. 9 Bar and Larger: One tensile test of each size per 10 tons, or portion thereof.

J. Concrete Testing Service: Engage a qualified independent testing agency to perform material evaluation tests and to test concrete mixtures. When mixes, are proportioned by trial batch method, engage a Laboratory conforming to ASTM E329 and under direction of a Professional Engineer licensed in Michigan

1.5 DELIVERY, STORAGE, AND HANDLING

A. Steel Reinforcement:

1. Deliver, store, and handle steel reinforcement to prevent bending and damage. Avoid damaging coatings on steel reinforcement.

2. Deliver reinforcing to Site properly bundled and tagged. Use tags that indicate bar size, lengths and marks corresponding to markings shown on shop drawings.

Segregate so as to maintain identification after bundles are broken.

3. Store reinforcement in a manner that will prevent excessive rusting or fouling with/ grease, oil, dirt, and other bond weakening materials.

4. Do not use damaged, reworked, or deteriorated material.

B. Waterstops: Store waterstops under cover to protect from moisture, sunlight, dirt, oil, and other contaminants.

C. Formwork: Deliver and store packaged materials in original containers with seals unbroken and labels intact until time of use.

D. Concrete Materials:

1. Protect cement from moisture and rotate stock to ensure fresh materials.

2. Protect aggregates as necessary to maintain saturated condition when batched.

3. Storage methods should comply with ACI 301 4.1.4.

223012.01 03 30 00 - 6 CAST-IN-PLACE CONCRETE

PART 2 - PRODUCTS

2.1 MANUFACTURERS

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

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

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

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

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

2.2 FORM-FACING MATERIALS

A. A minimum of 50% of the wood materials used for formwork (e.g., dimensional lumber, plywood) shall be “FSC Certified” products which have been harvested in accordance with the “FSC Principles and Criteria” for well-managed forests developed by the Forest Stewardship Council (FSC) of Reston, VA.

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

1. Exterior-grade plywood panels, suitable for concrete forms, complying with

DOC PS 1, and as follows:

a. Structural 1, B-B or better; mill oiled and edge sealed.

b. B-B (Concrete Form), Class 1 or better; mill oiled and edge sealed.

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

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

D. For exposed surfaces not otherwise specified use Special exterior Type Douglas Fir, Grade AB plywood, conforming to NBS PS-1, minimum 3/4 in. thick and constructed so that finished concrete will be straight, smooth, dense, free from honeycombs, bulges, or depressions. Keep joints between plywood sections to a minimum and make tight and strongly backed so that adjoining edges remain flush and true.

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

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

G. Form Gaskets (for sealing form panel joints) Gaskets shall be closed cell, completely skinned, foam rubber or neoprene, with pressure sensitive paperbacked adhesive on surfaces to be bonded to forms. Gaskets shall be of sufficient thickness, widths and compressibility for specific use.

H. Form Sealer (Wood Forms): All form sealers shall be of a type which will not harmfully affect the appearance and/or utility of the concrete surface or the application of sealers, paint, vinyl fabric or any other finishes. In addition, form sealer shall prevent the development of bond or adhesion to concrete.

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

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

2. Form release agents shall have a VOC content of 250 grams/liter or less.

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

1. Furnish units that will leave no corrodible metal closer than 1-1/2 inch to the plane of exposed concrete surface.

2. Furnish ties that, when removed, will leave holes no larger than 1 inch in diameter in concrete surface and permit neat and solid patching at every hole.

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

K. Expansion Joint Filler:

1. Fiber Type: Preformed asphalt impregnated fiber, ASTM D1751, 1/2 inch thick unless otherwise noted.

2. Cork Type: Preformed cork expansion joint, ASTM D1752. Type II, 1/2 inch thick unless otherwise noted.

L. Expansion Joint Sealant: ASTM C920, Type M, Class 2 5; two part polyurethane traffic grade sealant, gray color.

1. Horizontal Joints: Pourable, Grade P, Use T.

2. Vertical Joints: Nonsag, Grade NS, Use NT.

M. Foundation Formwork – Leave in Place: Ribbed mesh fabricated from galvanized sheet steel; stay-form, or equal.

2.3 STEEL REINFORCEMENT

A. Recycled Content of Steel Products: Concrete reinforcement shall contain a minimum of 25% combined post-industrial and post-consumer recycled content where the percentage of recycled content is based on the weight of the component materials.

B. Reinforcing Bars:

1. ASTM A615, Grade 60, deformed, unless noted otherwise.

C. Headed Bar Reinforcement: ASTM A970.

D. Tie Wire: American Wire 16 gauge or heavier black annealed wire.

E. Plain-Steel Wire: ASTM A82, as drawn.

F. Plain-Steel Welded Wire Reinforcement: ASTM A185, plain, fabricated from as-drawn steel wire into flat sheets.

2.4 REINFORCEMENT ACCESSORIES

A. Joint Dowel Bars: ASTM A615, Grade 60, plain-steel bars, cut bars true to length with ends square and free of burrs.

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

1. Where supports are placed against ground or atop vapor barrier use precast concrete blocks not less than 3 inches square with two 16 gauge embedded wires.

2. At Architectural Concrete and surfaces exposed to weather; CRSI Class 1 plastic protected.

C. Deformed Bar Anchors: Nelson, flux filled deformed bar anchors, type D2L, as manufactured by Nelson Stud Welding Division of TRW or approved equal.

223012.01 03 30 00 - 8 CAST-IN-PLACE CONCRETE

2.5 REINFORCEMENT FABRICATION

A. Fabricate reinforcing in accordance with ACI 301, 315 or CRSI "Manual of Standard Practice."

B. Bending:

1. Do not bend or kink reinforcing except as shown on the Drawings.

2. Minimum bend diameters and hook extensions as shown on the drawings or per ACI.

3. In case of fabrication errors do not rebend or straighten reinforcement in a manner that will injure or weaken the material.

4. Reinforcing bars are to be bent cold, do not preheat, unless approved by Architect.

5. Do not rebend reinforcement that has previously been bent within 6 inches of new bend except as allowed in section 3.3.2.8 of ACI 301.

C. Unacceptable Materials: Reinforcement with any of the following defects shall not be permitted in the Work and will be replaced without cost:

1. Bar lengths, depths and bends exceeding specified fabrication tolerances.

2. Bend or kinks not shown on the Drawings or final shop drawings.

3. Bars with reduced cross-section due to rusting or other cause.

4. Bars with dirt, mud, grease or form release agent.

2.6 CONCRETE MATERIALS

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

1. Portland Cement: ASTM C150, Type II, unless noted otherwise.

a. Portland Cement: ASTM C150, Type I, gray

2. Supplement Portland Cement with the following Supplementary Cementitious

Materials (SCM):

a. Fly Ash: ASTM C618, Class F.

b. Slag Cement: ASTM C989, Grade 100 or 120.

c. Silica Fume: ASTM C1240. MasterLife SF 100 (formerly Rheomac SF100) by

BASF Corporation or approved equal.

d. Metakaolin: ASTM C618. MetaMax by BASF Kaolin, Part of BASF Corporation or approved equal.

3. Cementitious material used shall have at least 2 years of use with proposed aggregates without detrimental reaction.

4. Alkali content shall not exceed 0.6% when tested in accordance with ASTM C114.

5. The temperature of cement delivered to the plant shall not exceed 150 degrees F.

B. Silica Fume: ASTM C1240, amorphous silica.

C. Normal-Weight Aggregates: ASTM C33, Class 3S coarse aggregate or better, graded.

Provide aggregates from a single source

1. Coarse Aggregate:

a. Aggregate shall contain no thin or elongated pieces. Any piece having a major dimension more than 2-1/2 times the average thickness shall be considered thin or elongated.

1) Alkali Silica Reactivity: Aggregate shall be considered non-reactive with documented satisfactory service record for a minimum of ten year period used in concrete with similar cementitious materials. In the absence of service record the aggregate shall be tested and will be considered non-reactive if it passes ASTM C1260 or ASTM C1293 per requirements of the Engineer of Record.

b. The maximum size used in a particular location shall be consistent with the form and dimensions of the section being placed, with the location and spacing of the reinforcing steel and with the method of vibration. The aggregate sizes shall be such as will produce dense, uniform concrete, free of rock pockets, honeycombs, or other irregularities.

223012.01 03 30 00 - 9 CAST-IN-PLACE CONCRETE

c. Combined aggregate gradation for slabs and other designated concrete shall be 8% to 18% for large top size aggregates (1-1/2-inch) or 8% - 22% for smaller top size aggregates (1-inch or 3/4-inch) retained on each sieve below the top size and above the No. 100.

1) Recycled Crushed Concrete Aggregate: Crushed structural concrete is permitted for use as coarse aggregate when shown by testing to produce concrete of adequate strength and durability, and these are found acceptable to the Engineer of Record.

2. Fine Aggregate: Uniformly graded, clean sand, free from excessive fines, organic materials or other deleterious materials. Free of materials with deleterious reactivity to alkali in cement.

3. Combined Aggregate Gradation: Combined aggregate gradation for slabs and other designated concrete shall be 8% - 18% for large size aggregates (1 ½ in.) or 8% - 22% for smaller top size aggregates (1 in. or ¾ in.) retained on each sieve below the top size and above the No. 100.

D. Water: ASTM C1602 clean, free from deleterious matter. Non-potable water is acceptable if meets the chemical content limits of ASTM C1602.

E. Recycled (Reclaimed) Aggregates:

1. Use only in below grade work or concrete to be covered in its final condition. Do not use in integrally colored concrete.

2. Maximum 20% of total aggregates by weight.

3. Use one source for each required type throughout the project.

4. Testing per Greenbook Standard Specifications for Public Works Construction 2006

Edition.

2.7 ADMIXTURES

A. General: Only if accepted by the Owner's Representative in accordance with ACI 318/318R

3.6 if they comply with requirements of ASTM C494. Where more than one is used, admixtures shall be compatible. Use of admixtures shall be consistent throughout Work.

1. Where specified herein do not use other admixtures without the written acceptance of the Architect.

2. Prohibited Admixtures: Admixtures containing intentionally-added chlorides are not permitted. Do not use admixtures that will negatively impact the visual finish of concrete exposed to view.

3. Limit VOC content per Section 01 81 13 to meet LEED Certification requirements.

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

1. Products:

a. Grace Construction Materials; Darex AEA or Daravair

b. MasterAir AE 90 (formerly MB-AE 90), MasterAir AE 100 (formerly Micro Air) or MasterAir VR 10 (formerly MB VR Standard) by BASF Corporation or approved equal.Euclid Chemical Company (The); Air Mix.

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

1. Water-Reducing (Plasticizing) Admixture: ASTM C494, Type A. Available Products:

a. Grace Construction Products, W. R. Grace & Co.; "WRDA with Hycol"

b. “MasterPozzolith” (formerly “Pozzolith”) Series or “MasterPolyHeed” (formerly

“PolyHeed”) Series by BASF Corporation or approved equal.

c. Euclid Chemical Company (The); “WR-75, WR-91 or Eucon MR”

2. Retarding Admixture: ASTM C494, Type B. Available Products:

a. “MasterSet R” (formerly “Pozzolith”) Series or “MasterSet DELVO” (formerly

“DELVO”) Series by BASF Corporation or approved equal.

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3. Accelerating Admixture or Water-Reducing and Accelerating Admixture: ASTM C494, Type C or Type E. Products:

a. MasterPozzolith AC 534 (formerly Pozzolith NC 534) or MasterSet AC 20

(formerly Pozzutec 20+) by BASF Corporation

b. Accelguard 80, 90 or NCA by The Euclid Chemical Company

c. Polarset by W.R. Grace

4. Water-Reducing and Retarding Admixture: ASTM C494, Type D. Products:

a. Sika Corporation; “Sikament 30,”

b. Euclid Chemical Company (The); “Eucon Retarder-75”

c. “MasterSet R” (formerly “Pozzolith”) Series or “MasterSet DELVO” (formerly

“DELVO”) Series by BASF Corporation or approved equal.

5. Workability-Retaining Admixture: ASTM C494, Type S. Products:

a. MasterSure Z 60 (formerly RheoTEC Z-60) by BASF Corporation or approved equal.

6. Shrinkage-Reducing Admixture: ASTM C494, Type S. Available Products:

a. MasterLife SRA 20 by BASF Corporation or approved equal.

7. Crystaline Waterproofing Additive: ASTM E329, Xypex Admix C-500 Available Products:

a. Xypex

2.8 WATERSTOPS

A. Flexible Rubber Waterstops: CE CRD-C 513 for embedding in concrete to prevent passage of fluids through joints. Factory fabricate corners, intersections, and directional changes.

1. Manufacturers:

a. Sika Greenstreak.

b. Williams Products, Inc.

2. Profile: As indicated.

3. Dimensions: Web thickness shall be not less than 3/16 inch for units up to 5 inches wide and not less than 3/8 inch for widths 5 inches and over.

B. Flexible PVC Waterstops: CE CRD-C 572 for embedding in concrete to prevent passage of fluids through joints. Factory fabricate corners, intersections, and directional changes.

1. Manufacturers:

a. BoMetals, Inc.

b. Sika Greenstreak.

c. Meadows, W. R., Inc.

d. Murphy, Paul Plastics Co.

e. Tamms Industries, Inc.

f. Vinylex Corp. Waterstop and Accessories

2. Profile: As indicated.

3. Dimensions: Web thickness shall be not less than 3/16 inch for units up to 5 inches wide and not less than 3/8 inch for widths 5 inches and over.

C. Self-Expanding Butyl Strip Waterstops: Manufactured rectangular or trapezoidal strip, butyl rubber with sodium bentonite or other hydrophilic polymers, for adhesive bonding to concrete, 3/4 inch by 1 inch.

1. Products:

a. Volclay Waterstop-RX; CETCO.

b. Conseal CS-231/CS-235; Concrete Sealants Inc..

c. Swellstop; Sika Greenstreak;.

d. Hydro-Flex ; Henry Company, Sealants Division.

e. Earthshield Type 20; JP Specialties, Inc..

f. Mirastop; Carlisle Coatings and Waterproofing, Inc..

D. Self-Expanding Rubber Strip Waterstops: Manufactured rectangular or trapezoidal strip, bentonite-free hydrophilic polymer modified chloroprne rubber, for adhesive bonding to concrete, 3/8 by 3/4 inch.

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1. Products:

a. Adeka Ultra Seal; Adeka Ultra Seal/OCM, Inc..

b. Hydrotite; Sika Greenstreak.

c. DeNeef SWELLSEAL 2010; GCP Applied Technologies Inc. (formerly Grace

Construction Products).

d. WATERSTOP XP; CETCO, a Minerals Technology Co..

e. Conseal CS-5000; Concrete Sealants Inc.

2.9 VAPOR BARRIER AND ACCESSORIES

A. Vapor Barrier:

1. Plastic Vapor Barrier

a. Water Vapor Barrier: ASTM E-1745; meets or exceeds Class A.

b. Permeance Rating: ASTM E-96 or ASTM F 1249; 0.01 Perms or less.

c. Thickness of Barrier: ACI 302.2R-06; not less than 15 mils.

2. Products:

a. Stego Wrap (15 mil) Vapor Barrier; Stego Industries

b. VaporBlock 15/VaporBlock G; Raven Industries

c. Perminator (15 mil); W.R. Meadows

d. Viper Vaporcheck II (15 miI); Insulation Solutions Inc.

e. Barrier-Bac VB-35 16 mil); Interplast

f. Husky Yellow Guard (15 mil); Poly-America

g. Tex-Trude Xtreme Vapor Barrier (15 mil); Tex-Trude, LP

B. Vapor Barrier Accessories

1. Seam/Transition Tape: Tape with pressure sensitive adhesive or double-sided adhesive. Minimum width 4 inches.

2. Construct pipe boots from vapor barrier material and pressure sensitive tape per manufacturer’s instruction.

C. Drainage Fill (Coarse):

1. Washed, narrowly graded mixture of crushed stone, or crushed or uncrushed gravel

ASTM D 448; coarse-aggregate grading size 57; with 100 percent passing a 1 inch sieve and not more than5 percent passing a No. 8 sieve.

2.10 CURING MATERIALS

A. Evaporation Reducer: Waterborne, monomolecular film forming, manufactured for application to fresh concrete.

1. Products:

a. Spray-Film; ChemMasters.

b. AquaFilm; Dayton Superior Corporation.

c. Eucobar; Euclid Chemical Company (The).

d. Vapor Aid; Kaufman Products, Inc..

e. Lambco Skin; Lambert Corporation.

f. E-Con; Laticrete International, Inc..

g. MasterKure ER 50; BASF Construction Systems.

h. Evapre; Meadows, W. R., Inc..

i. Waterhold; Metalcrete Industries.

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

k. SikaFilm; Sika Corporation, Inc..

l. Certi-Vex EnvioSet; Vexcon Chemicals, Inc..

m. TK-2120 TRI-FILM; TK Products, Division of Sierrra Corp..

n. SpecFilm, SpecChem LLC.

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

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

D. Curing Paper: Eight feet wide paper, consisting of two layers of fibered kraft paper laminated with double coating of asphalt.

1. Basis-of-Design: Fortifiber Building Systems Group.

E. Water: Potable.

2.11 SEALERS

A. Penetrating Anti-Spalling Sealer (Exterior ramps, steps, and stoops): Sealer shall be a siloxane-based compound or silane modified siloxane emulsion formulated to reduce chloride ion absorption/intrusion by 80 percent when tested in accordance with NCHRP #244, Test Method Series II tests. In addition, sealer-treated concrete shall exhibit no scaling when exposed to 125 cycles of freezing and thawing when tested in accordance with ASTM C 672. Tests shall be by an independent testing laboratory.

1. Products:

a. Baracade ME (VOC Compliant); Euclid Chemical Co.

b. Saltguard WB; PROSOCO, Inc.

c. Aquapel Plus; L & M Construction Chemical Co.

d. SpallGuard WB-10; ChemMasters

e. Sikagard 701W; Sika Corporation

f. Weather Worker J29; Dayton Superior Corporation

g. Intraguard/Pentreat 244-40; W.R. Meadows

h. V-Seal 102 Winter Guard; V-Seal Concrete Sealers and Concrete Coatings.

i. SpecShield WB; SpecChem, LLC

B. Floor Sealer: ASTM C1315, Type I, Class A and ASTM C309, Type I, Class A and B.

Acrylic water-based urethane clear sealer, non yellowing, resistant to blush, and satin finish as recommended by manufacturer for preventing staining by waterborne and oil substances.

1. Products:

a. Everclear VOX (Acrylic Sealer); Euclid Chemical Co.

b. Cure and Seal 1315 EF; Dayton Superior

c. Polyseal WB; ChemMasters

d. Cure & Seal WB 25; SpecChem LLC

2.12 RELATED MATERIALS

A. Expansion- and Isolation-Joint-Filler Strips: ASTM D1751, asphalt-saturated cellulosic fiber or ASTM D1752, cork or self-expanding cork or ASTM D1752, gray sponge rubber.

B. Semirigid Joint Filler: Two-component, semirigid, 100 percent solids, epoxy resin with a Type A shore durometer hardness of 80 per ASTM D2240.

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

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

1. Types I and II, non-load bearing IV and V, load bearing, for bonding hardened or freshly mixed concrete to hardened concrete. Available products: Duralcrete Series by The Euclid Chemical Company, Sikadur Hi-Mod Series by Sika, MasterEmaco ADH Series (Formerly Concresive) by BASF Corporation, or approved equal.

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E. Post-Installed Concrete Anchors:

1. Expansion Anchors: Kwik Bolt IIITZ by Hilti Inc, Trubolt Wedge by ITW Ramset/Red

Head, Power-Stud by Powers-Rawl, or approved equal.

2. Epoxy Dowels / Epoxy Anchors: HIT HY 150 by Hilti, Inc., CIA-Gel 7000 by Covert

Operations, SET by Simpson Strong Tie, Power-Fast by Powers-Rawl, or approved equal.

3. Grouted Dowels / Grouted Anchors: High strength non-shrink grout to anchor reinforcing steel or threaded rods in concrete shall be Hi-Flow Grout by The Euclid Chemical Company or MasterFlow 928 grout as manufactured by BASF Corporation, Sika Grout 212 as manufactured by Sika Corporation, or approved equal.

F. Reglets: Fabricate reglets of not less than 26 gauge, galvanized steel sheet. Temporarily fill or cover face opening of reglet to prevent intrusion of concrete or debris.

G. Dovetail Anchor Slots: Hot-dip galvanized steel sheet, not less than 22 gauge, with bent tab anchors. Temporarily fill or cover face opening of slots to prevent intrusion of concrete or debris.

2.13 MORTARS AND GROUTS

A. Bonding Grout: Approximately 1 part Portland cement to 1 part fine sand passing a no 30 sieve and a 50/50 mixture of approved bonding admixture and water, mixed to a consistency of thick paint and not exceeding the w/cm of the concrete to be bonded.

B. Patching Mortar for exposed concrete shall be made of the same material and of approximately the same proportions as used for concrete, except that coarse aggregate shall be omitted and mortar shall consist of not more than 1 part Portland cement to 2-1/2 parts damp loose sand by volume.

1. Combine white and gray Portland cement as necessary to match color specified by

Architect. Use no more mixing water than necessary for handling and placing.

2. Mix patching mortar in advance and allow to stand with frequent mixing with trowel without adding water until it has reached the stiffest consistency that will permit placing.

C. High Flow Grout:

1. Where high fluidity and/or increased placing time is required, use high flow grout.

2. ASTM C1107, “Standard Specification for Packaged Dry, Hydraulic-Cement Grout

(Non-Shrink)”.

3. When placed at a fluid consistency there shall be at least 95% bearing under an 18 inches x 36 inches base plate.

4. “Hi-Flow Grout” manufactured by The Euclid Chemical Company, “MasterFlow 928” manufactured by BASF Construction Products, or approved equal.

D. Epoxy grout for anchor reinforcing steel or threaded rods in concrete shall be MasterEmaco ADH 1490 (Formerly Concresive 1490) as manufactured by BASF Construction Products, or Sikadur 32 Hi-Mod as manufactured by Sika Corporation, or Epoxy 452 or E3G by Euclid Chemical Company, or approved equal.

E. Cementitious grout for anchor reinforcing steel or threaded rods in concrete shall be MasterFlow 928 grout as manufactured by BASF Corporation, Sika Grout 212 as manufactured by Sika Corporation, Hi-Flow grout by Euclid Chemical Company, or approved equal.

F. Drypack Mortar for Form Holes at Non-Architectural Grade Surfaces: Composed of 1 part Portland cement and 2 parts of fine aggregate and water. Match color of adjacent surfaces.

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2.14 REPAIR MATERIALS

A. High Strength Flowing Repair Mortar: For forming and pouring structural members, or large horizontal repairs, provide the flowable one-part, high strength microsilica modified repair mortar with 3/8” aggregate. The product shall achieve 9000 psi @ 28-days at a 9-inch slump. Available products: MasterEmaco S 466 CI (Formerly Emaco S66 CI) by BASF Corporation, Eucocrete by The Euclid Chemical Company, or approved equal.

B. Patching Mortar:

1. Horizontal repairs, ASTM C928. Available Products:

a. Euclid Chemical Co.: Euco Thin Top Supreme, Concrete Top Supreme

b. Sika Chemical Corp.: Sikatop 121 or 122

c. BASF Corporation: MasterEmaco T 310 CI (Formerly Emaco R310 CI)

2. Vertical or Overhead repairs, ASTM C928. Use as recommended by manufacturer for overhead use. Available Products:

a. Euclid Chemical Co.: Verticoat, Verticoat Supreme or Speed Crete Red Line

b. Sika Chemical Corp.: Sikatop 123

c. BASF Corporation: MasterEmaco N 350 CI (Formerly Emaco R350 CI) or

MasterEmaco N 425 (Formerly Gel Patch)

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

1. Cement Binder: ASTM C150, portland cement or hydraulic or blended hydraulic cement as defined in ASTM C219.

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

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

4. Compressive Strength: Not less than 3500 psi at 28 days when tested according to

ASTM C109.

5. Bond Strength: Not less than 1000 psi at 28 days when tested according to

ASTM C1042.

6. Products:

a. Euclid Chemical Co.: Super Flo-Top

b. BASF Corporation: MasterTop 110 SL (Formerly Mastertop 110 Plus)

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

1. Cement Binder: ASTM C150, portland cement or hydraulic or blended hydraulic cement as defined in ASTM C219.

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

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

4. Compressive Strength: Not less than 5000 psi at 28 days when tested according to

ASTM C109.

5. Products:

a. Euclid Chemical Co.; Thin Top Supreme or Tammspatch II

b. BASF Corporation; MasterEmaco N 300 CI (Formerly Emaco R300 CI)

6. Product shall exhibit the following properties: Chaplin Abrasion Test – 0.0079-inches maximum at 28 days.

2.15 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. The mixes shall be submitted on mix design submittal form at the end of the specification.

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1. Procurement of concrete mix design is responsibility of Contractor.

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

3. At the discretion of the Engineer of Record a manufacturer’s laboratory may also be approved to perform trial batching. The Manufacturer’s lab must be run under the direct supervision of a Professional Engineer and technicians performing the tests must be Both ACI Concrete Field Testing Technician Grade I and Laboratory Testing Technician grade I certified. The facilities must be adequate to properly perform the testing required.

B. Supplementary Cementitious Materials (SCM): Use fly ash, pozzolan, ground granulated blast-furnace slag, and silica fume as needed to reduce the total amount of portland cement, which would otherwise be used, by not less than 40 percent, or as noted otherwise within this specification, without exceeding the following limits:

1. Fly Ash: 25 60 percent.

2. Ground granulated blast-furnace slag: 50 70 percent.

3. Combined Fly Ash and Ground Granulated Blast-Furnace Slag: 50 80 percent, where neither component exceeds 50 percent.

4. Silica Fume: 10 15 percent.

5. Combined Fly Ash or Pozzolans, Ground Granulated Blast-Furnace Slag, and Silica

Fume: 50 60 percent with fly ash or pozzolans not exceeding 25 percent and silica fume not exceeding 10 percent.

C. Where concrete is exposed to deicing chemicals, limit percentage, by weight, of cementitious materials other than portland cement in concrete as follows:

1. Fly Ash: 25 percent.

2. Combined Fly Ash and Pozzolan: 25 percent.

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

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

D. Limit water-soluble, chloride-ion content in hardened concrete to the…