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SC-Town Center E8-CS 930615LATTI.eIORE MATERIALS CGOVIPANY P.O. BOX 556 MCKINNEY, TEXAS 75069 (214) 221 -4646 (214) 548 -0700 Client: The Cortez Group Inc. DATE: 15- Jun -93 Project: Town Center Elementary Materials: Cement: Type 1, ASTM C -150, Texas- LeHigh Cement Flyash: Class C, ASTM C -618, Monex Coarse Agg.: ASTM C -33, 1" - #4 Lattimore Crushed Stone ASTM C -33, 1 1 /2 "- #4Lattimore Crushed Stone Fine Agg.: ASTM C -33, Lattimore Concrete Sand Admixtures: ASTM C- 494,Sika ASTM C- 260,Sika 1 Cubic Yard By Weight, SSD -------- --- ---------- - -- - -- Mix No. 38 16 416 438 Strength @ 28 Days 3000 3000 3000 3000 Air Air Cement, lbs 470 470 470 470 Fly Ash, lbs 0 0 0 0 C. Agg., lbs 1850 1850 1950 1950 Sand, lbs 1430 1472 1390 1305 Water, lbs 227 253 255 237 W /R, oz 18.8 18.8 18.8 18.8 AEA, oz ------------------------------------------------------------ 3.1 0.0 0.0 3.1 Total Weight 3977 4045 4065 3962 Unit Wt, # 147.30 149.81 150.56 146.74 W/C Ratio, #/# 0.48 0.54 0.54 0.50 Fly Ash, % 0 0 0 0 Maximum Temp, deg. 95 95 95 95 Slump, inches 3 -5 3 -5 3 -5 3 -5 Air, % entrained 3-- 5' 0 0 3 -5 * Admixture dosage subject to adjustment as needed (ASTM C -94, Note 7 ** Air content per recommendations of ASTM C -94.7 (Table 3) Lattimore Ready Mix guarantees the above mix design will achieve the specified strength when tested and evaluated in accordance with ASTM C -172, C -31, C -39 and C -94 and when the recommended procedures for placement and curing outlined in ACI 305/306 are followed.