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<br />Copyright 2002 AIA <br /> <br />MASTERSPEC Short Form <br /> <br />08/02 (R 05/06) <br /> <br />4. Air Content: [5-1/2] <Insert number> percent, plus or minus 1.5 percent at point of <br />delivery for 1-1/2-inch (38-mm) nominal maximum aggregate size. <br />5. Air Content: [6] <Insert number> percent, plus or minus 1.5 percent at point of delivery <br />for [I-inch (25-mm)] [3/4-inch (19-mm)] nominal maximum aggregate size. <br />6. Air Content: Do not allow air content of troweled finished floors to exceed 3 percent. <br />7. Synthetic Fiber: Uniformly disperse in concrete mixture at manufacturer's recommended <br />rate, but not less than [1.0 Ib/cu. yd. (0.60 kg/cu. m)] [1.5 Ib/cu. yd. (0.90 kg/cu. m)] <br /><Insert dosage>. <br /> <br />D. Proportion structural lightweight concrete mixture as follows: <br /> <br />1. Minimum Compressive Strength: [5000 psi (34.5 MPa)] [4500 psi (311\lPa)] [4000 psi <br />(27.6 MPa)] [3500 psi (24.1 J\<:[Pa)] [3000 psi (20.7 MPa)] <Insert strength> at 28 <br />days. <br />2. Calculated Equilibrium Unit Weight: [115 Ib/cu. ft. (1842 kg/cu. m)] [110 Ib/cu. ft. <br />(1762 kg/cu. m)] [105 Ib/cu. ft. (1682 kg/cu. m)], plus or minus 3 Ib/cu. ft. (48.1 kg/cu. <br />m) as determined by ASTM C 567. <br />3. Slump Limit: [4 inches (100 mm)] [5 inches (125 mm)], plus or minus 1 inch (25 mm). <br />4. Air Content: 6 percent, plus or minus 2 percent at point of delivery for nominal <br />maximum aggregate size greater than 3/8 inch (10 mm). <br />5. Air Content: 7 percent, plus or minus 2 percent at point of delivery for nominal <br />maximum aggregate size 3/8 inch (10 mm) or less. <br />6. Air Content: Do not allow air content of troweled fInished floors to exceed 3 percent. <br />7. Synthetic Fiber: Uniformly disperse in concrete mixture at manufacturer's recommended <br />rate, but not less than [1.0 Ib/cu. yd. (0.60 kg/cu. m)] [1.5 lb/cu. yd. (0.90 kg/cu. m)] <br /><Insert dosage>. <br /> <br />2.8 FABRICATING REINFORCEMENT <br /> <br />A. Fabricate steel reinforcement according to CRSI's "Manual of Standard Practice." <br /> <br />2.9 CONCRETE MIXING <br /> <br />A. Ready-Mixed Concrete: Measure, batch, mix, and deliver concrete according to <br />ASTM C 94/C 94M[ and ASTM C 1116], and furnish batch ticket information. <br /> <br />1. When air temperature is between 85 and 90 deg F (30 and 32 deg C), reduce mixing and <br />delivery time from 1-1/2 hours to 75 minutes; when air temperature is above 90 deg F (32 <br />deg C), reduce mixing and delivery time to 60 minutes. <br /> <br />PART 3 - EXECUTION <br /> <br />3.1 FORMWORK <br /> <br />A. Design, erect, shore, brace, and maintain formwork according to ACI301 to support vertical, <br />lateral, static, and dynamic loads, and construction loads that might be applied, until structure <br />can support such loads. <br /> <br />CAST -IN-PLACE CONCRETE <br /> <br />03300 - 5 <br />