Minimum Standards for Concrete Reinforcement

Minimum Standards for Concrete Reinforcement. 1. Tanks Reinforced with Welded Steel Concrete Wire: a. The reinforcing wire shall be a minimum number ten (10) gauge six (6) inch on centers. The reinforcing wire shall be lapped a minimum of six (6) inches. b. Lids for prefabricated septic tanks shall have one (1) 3/8 inch steel reinforcing rod per foot of length and width. 2. Tanks Reinforced with Synthetic Structural Fibers: a. Manufacturer of synthetic structural fibers shall provide certification showing fibers meet the requirements outlined in this section. b. Synthetic fibers shall be monofilament and made of a polypropylene or polypropylene/polyethylene blend in accordance with ASTM C 1116, Section 4.1.3, Part III. c. Synthetic structural fibers shall have a minimum length of 1.5 inches. d. Synthetic structural fibers shall produce concrete with a minimum average residual strength of one hundred fifty (150) psi when tested in accordance with ASTM C 1399. e. Fiber dosage rate shall be a minimum of 3 lb/yd3 of concrete.