A. 
Steel Reinforcing Bars.
All steel reinforcing bars shall be open hearth new billet steel conforming to ASTM A615. All bars shall be deformed and be Grade 60 with a minimum yield strength of 60,000 psi.
B. 
Welded Wire Fabric.
Wire for fabric reinforcement shall be cold drawn from rods hot rolled from open hearth billets and shall conform to ASTM A82 and be fabricated in accordance with ASTM A185. Wire for fabric reinforcement shall be #4 gauge or have a nominal diameter of 0.2253-inch. Welded wire fabric shall be supplied in flat mats. Rolled fabric will not be accepted.
C. 
Supports.
Supports for reinforcing bars shall be the correct type as intended and represented by the manufacturer. Bar supports shall be uniform high density polyethylene or fiberglass reinforced plastic and conform to CRSI Class 1, Maximum Protection.
D. 
Spacers.
Reinforcing bars shall be spaced the proper distance from the face of the forms by means of approved galvanized metal spacers or approved mortar or concrete blocks. Precast mortar or concrete blocks shall be cast in individual molds, in the form of a frustrum of a cone or pyramid, with suitable tie wire to be used for anchoring the block to the steel. The precast blocks shall be properly cured and aged before use in spacing the steel.
E. 
Tie Wire.
Use 18-gauge annealed steel for tie wire.
F. 
Bar Splices.
Splicing of bars will not be permitted without the written approval of the Engineer or designated representative of the Engineer. When splicing of bars is unavoidable, the number of splices shall be kept to a minimum and shall be located at points of minimum stress. When practicable, splices in adjacent bars shall be staggered. Lap splices shall have a minimum splice length of not less than twenty-four (24) bar diameters when being used in 3,000 psi concrete and shall be in accordance with ACI 318. Mechanical splices shall be installed in strict accordance with the manufacturer’s instructions and recommendations and shall be as follows:
1. 
Mechanical Bar Splices.
Use Cadweld splices manufactured by Erico Products, Inc., or preapproved equal. Splices must develop a minimum of 125% of specified yield strength of the spliced bars.
2. 
Threaded Bar Splices.
Use a metal coupling sleeve with internal threads which receive the threaded ends of the bars to be splice. Splices must develop a minimum of 125% of specified yield strength of the spliced bars.
(Ordinance 2007-106, App. B, adopted 3/20/07)
Reinforcement shall be bent cold to the shapes indicated on the plan details. Bends shall be true to the shapes indicated and any irregularities shall be cause for rejection. Unless otherwise shown, bends for stirrups or ties shall be made around a pin having a diameter of not less than two (2) times the bar size. Hooks shall be a complete semi-circular turn of a diameter equal to six (6) times the bar diameter, plus an extension of at least four (4) bar diameters at the free end of the bar.
(Ordinance 2007-106, App. B, adopted 3/20/07)