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<br />High Rock Road Waste and Recycling Center Improvements 32 13 13 - 2 <br />Orange County, North Carolina JULY 2021 <br />DAA PN: R00592-213N <br /> <br />E. Deformed-Steel Wire: ASTM A 496. <br />F. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, <br />supporting, and fastening reinforcing bars, welded wire reinforcement, and <br />dowels in place. Manufacture bar supports according to CRSI's "Manual of <br />Standard Practice." <br />2.2 CONCRETE MATERIALS <br />A. Cementitious Material: Use the following cementitious materials, of the same <br />type, brand, and source throughout the Project: <br />1. Portland Cement: ASTM C 150, Type I, gray. <br />B. Normal-Weight Aggregates: ASTM C 33, Class 4S coarse aggregate, uniformly <br />graded. Provide aggregates from a single source. <br />C. Water: ASTM C 94/C 94M. <br />D. Air-Entraining Admixture: ASTM C 260. <br />E. Chemical Admixtures: ASTM C 494/C 494M, of type suitable for application, <br />certified by manufacturer to be compatible with other admixtures and to contain <br />not more than 0.1 percent water-soluble chloride ions by mass of cementitious <br />material. <br />2.3 CURING MATERIALS <br />A. Absorptive Cover: AASHTO M 182, Class 2, burlap cloth. <br />B. Moisture-Retaining Cover: ASTM C 171, polyethylene film or white burlap- <br />polyethylene sheet. <br />C. Water: Potable. <br />D. Evaporation Retarder: Waterborne, monomolecular film forming; manufactured <br />for application to fresh concrete. <br />E. Clear Waterborne Membrane-Forming Curing Compound: ASTM C 309, <br />Type 1, Class B, dissipating. <br />F. White Waterborne Membrane-Forming Curing Compound: ASTM C 309, <br />Type 2, Class B. <br />DocuSign Envelope ID: BBF56E0A-3618-497E-AA70-92F097E8F598