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T I M C o V E~ I~ T, P, E . ~ T ~ U C T U R A L- E N G I N E E R <br /> <br />Materials: <br /> <br />Concrete <br /> <br />3000 psi at 28 days <br />Slump (max) 3" +/- 1" <br />Portland Cement ASTM C-150 <br />5-1/2 Sacks per Cubic Yard <br />Aggregates per ASTM C-33 <br />3/4" max.sized aggregate. <br />Water per ASTM C-94 <br />5%-7% Air-Entrained. <br />Conc Temp Btwn 50F-90F <br /> <br />Note: The concrete supplier is to assume full responsibility for <br />the mix design (Proportioning) and the performance of the <br />concrete. <br /> <br />Rebar ................. ASTM A615 Grade 40 <br /> Lap Splice 40 diams. <br /> <br />Steel <br /> <br />ASTM A36 (Str. Steel) <br />ASTM A307 Bolts <br />ASTM A185 Mesh <br />E70XX Electrodes <br /> <br /> <br />