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Northlake 635(9)-LR 970305 (5)Hooper Engineering Laboratorie Construction Materials Testing REPORT OF CONCRETE TESTS CLIENT: T.A.S. Construction, Inc. PROJECT: Marek Office/Warehouse, 1233 Lakeshore, Coppell LOCATION OF POUR SET 1: Tilt-up panels//13 and 15. LOCATION OF POUR SET 2: Tilt-up panels//23 and 21 JOB NO.: DATE: SUPPLIER: SAMPLE DATA: SET 1 SET 2 MIX NO. Truck No. 297 552 Cement Ticket No. 341583 341592 Flyash Time Batched 7:50am 8:45am Sand Time Sampled 8:25am 9:18am in. Concrete Temp. (ASTM C10641 65°F 64°F 1.0 in. Air Content (ASTM C231) 6.2% 6.2% Water Unit Weight (ASTM C1381 Admix #1 Admix #2 AEA 9339 470 Type I 1347 1840 252 Hycol @ 15.(; Darex I1@ 3o COMPRESSIVE STRENGTH TESTS {ASTM C39) (Standard 6 inch x 12 ir Cylinder Slump Age Test Number Inches Days Date (ASTM C143) Total Load Compressiw Pounds Strength psi 69 5.25 6 03/11/97 70 5.25 7 03/1 2/97 71 5.25 28 04/02/97 72 5.25 28 04/02/97 73 5.25 56 04/30/97 74 5.75 6 03/11/97 75 5.75 7 03/12/97 76 5.75 28 04/02/97 77 5.75 28 04/02/97 78 5.75 56 04/30/97 93,800 3320 94,400 3340 28-Day Average 89,400 3160 93,000 3290 28-Day Average TECHNICIAN: DISTRIBUTION: RDG (1) Stanley Construction Co., LLP, Lloyd A. White (1) Richmond Group, Jim Corkhill (1) T.A.S, Construction, Inc., James Myers (1) City of Coppell, Larry Davis 2870 Walnut Hill lane Dallas, Texas 75229 (214) 351-6419 s, Inc. 6.1081 March 1997 ioneer oz/yd z/yd ch cylinder) Required 28-Day Strength 3000 30O0 Fax (214) 351-5148