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Attendant Booth Additions 03 30 00 - 3 <br />Orange County, North Carolina AUGUST 2025 <br />TRC PN: 670493 <br /> <br />C. Plain-Steel Welded-Wire Reinforcement: ASTM A 1064/A 1064M, plain, <br />fabricated from as-drawn steel wire into flat sheets. <br />D. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, <br />supporting, and fastening reinforcing bars and welded -wire reinforcement in <br />place. Manufacture bar supports from steel wire, plastic, or precast concrete <br />according to CRSI's "Manual of Standard Practice." <br />2.4 CONCRETE MATERIALS <br />A. Cementitious Materials: <br />1. Portland Cement: ASTM C 150/C 150M, Type I/II, gray. <br />2. Fly Ash: ASTM C 618, Class F or C. <br />B. Normal-Weight Aggregates: ASTM C 33/C 33M, graded. <br />1. Maximum Coarse-Aggregate Size: 3/4 inch (19 mm) nominal. <br />2. Fine Aggregate: Free of materials with deleterious reactivity to alkali in <br />cement. <br />C. Air-Entraining Admixture: ASTM C 260/C 260M. <br />D. Chemical Admixtures: Certified by manufacturer to be compatible with other <br />admixtures and that do not contribute water-soluble chloride ions exceeding <br />those permitted in hardened concrete. Do not use calcium chloride or <br />admixtures containing calcium chloride. <br />1. Water-Reducing Admixture: ASTM C 494/C 494M, Type A. <br />2. Retarding Admixture: ASTM C 494/C 494M, Type B. <br />3. Water-Reducing and Retarding Admixture: ASTM C 494/C 494M, Type D. <br />4. High-Range, Water-Reducing Admixture: ASTM C 494/C 494M, Type F. <br />5. High-Range, Water-Reducing and Retarding Admixture: <br />ASTM C 494/C 494M, Type G. <br />6. Plasticizing and Retarding Admixture: ASTM C 1017/C 1017M, Type II. <br />E. Water: ASTM C 94/C 94M and potable. <br />2.5 CURING MATERIALS <br />A. Evaporation Retarder: Waterborne, monomolecular film forming, manufactured <br />for application to fresh concrete. <br />B. Absorptive Cover: AASHTO M 182, Class 2, burlap cloth made from jute or <br />kenaf, weighing approximately 9 oz./sq. yd. when dry. <br />Docusign Envelope ID: 34F94CE0-2CE8-49C5-B7C4-6B696F8E23C3