Att 5 03200ConcreteReinforcement.doc

WASTEWATER IMPROVEMENTS CNF

SECTION 03200 - CONCRETE REINFORCEMENT

PART 1 - GENERAL

1.1

SECTION INCLUDES

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

1.2

RELATED SECTIONS

A. Section 03100 - Concrete Formwork.

B. Section 03300 - Cast-in-Place Concrete.

1.3

REFERENCES

A. ACI 30 - Structural Concrete for Buildings.

B. ACI 318 - Building Code Requirements For Reinforced Concrete.

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

D. ASTM A82 - Cold Drawn Steel Wire for Concrete Reinforcement.

E. ASTM A185 - Welded Steel Wire Fabric for Concrete Reinforcement.

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

G. AWS D 1.4 - Structural Welding Code for Reinforcing Steel.

H. CRSI - Concrete Reinforcing Steel Institute – Manual of Practice.

I. CRSI 63 – Recommended Practice For Placing Reinforcing Bars.

J. CRSI 65 – Recommended Practice For Placing Bar Supports, Specifications and

Nomenclature.

1.4

SUBMITTALS FOR REVIEW

A. Section 01300 – Submittals: Procedures for submittals.

B. Shop Drawings: Indicate bar sizes, spacing, locations, and quantities of reinforcing steel, Bending and cutting schedules, and supporting.

1.5

SUBMITTALS FOR INFORMATION

A. Section 01300 – Submittals: Procedures for submittals.

B. Manufacturer’s Certificate: Certify that products meet or exceed specified requirements.

C. Submit certified copies of mill report or reinforcement materials analysis.

1.6

QUALITY ASSURANCE

A. Perform Work in accordance with ACI 301 and ACI SP-66.

1.7

MEASUREMENT AND PAYMENT

A. No separate measurement or payment will be made for work specified in this section.

PART 2 - PRODUCTS

2.1

REINFORCEMENT

A. Reinforcing Steel: ASTM A615, 60 ksi yield grade; deformed billet steel bars.

2.2

ACCESSORIES

A. Tie Wire Minimum 16.

B. Chairs, Bolsters, Bar Supports, Spacers: Sized and shaped for strength and support of reinforcement during concrete placement conditions including load bearing pad on bottom to prevent vapor barrier puncture.

C. Special Chairs, Bolsters, Bar Supports, Spacers Adjacent to Weather Exposed Concrete

Surfaces: Stainless steel type; size and shape as required.

2.3

FABRICATION

A. Fabricate concrete reinforcing in accordance with ACI SP-66.

B. Locate reinforcing splices not indicated on drawings, at point of minimum stress. Review location of splices with Contracting Officer.

PART 3 - EXECUTION

3.1

PLACEMENT

A. Place, support and secure reinforcement against displacement. Do not deviate from required position.

B. Do not displace or damage vapor barrier.

C. Accommodate placement of formed openings.

D. Maintain concrete cover around reinforcing as follows:

Item:

Coverage:

Footings and Concrete Formed Against Earth

3 inch Slabs on Grade

3 inch

3.2

FIELD QUALITY CONTROL

A. Section 01400 - Quality Control: Field inspection.

B. Inspect for acceptability.

END OF SECTION 03200

CONCRETE REINFORCEMENT

Section 03200-3