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WA9302-LR 960205 (2)'EOTECHNICAL 7 E GEE Consultants, Inc. E I NVIRONMENTAL 2540 Glenda Lane · Suite 108 · Dallas, Texas 75229 · (214) 620-9791 · Fax (214) 620-9794 REPORT OF CONCRETE MIX INSPECTION Report Date: February 5, 1996 Date Concrete Placed: January 4, 1996 Standard 6"x12" Client: Natgun Corporation Area 28.27 Square Inches Project: 6.0 Million Gallon Water Storage Tank Concrete Report No.: 79 Contractor: Natgun Construction Project No.: 95-0258 Concrete Supplier and Plant: RediMix Concrete - Plant #1 Location of Placement: Dome Panels MATERIALS s .....~ ~at~. W.~. INSPECTION DATA Description (Lbs ./Cu. Yd) Mix Number: 685 Time Sample Batched: 9:20 am Cement: Time Sampled: 10:30 am Sample Location: 2B-4, 2A-4, 1A-4, 4A-4, 5A-4, 6A-4 Fly Ash: Truck/Ticket No: 129/17370 Coarse Aggregate: Temperature: Intermediate Aggregate: Ambient Range: 46°F Fine Aggregate: Concrete Range: 52°F Admixtures: Slump Range (inches): 7 t~. Weather Conditions: Clear 1 Time Started: 8:30 am 2 Time Completed: 6:00 pm Added Water: Sample Air Content (%): 3V2% Total Cubic Yards Placed: 10 C.Y. Required Strength (Lbs./sq.in.): 5,000 psi Specimen Measured Age Date Total Load Compresslye Strength Remarks Nmnber Slump (in.) (Days) Tested (Lbs.) (Lbs./SqAn.) CWT 290 7 Vi" 7 01/11/96 128,140 4,530 Slump before super plasticizer was 3" CWT 291 7 x/i" 28 02/01/96 161,540 5,710 CWT 292 7 ~" 28 02/01/96 168,540 5,960 CWT 293 7 Vi" Hold Hold Test Methods Utilized Fracture Regular Cylinders Made By: P.C. ASTM C-31,C-39,C 143 (Unless Noted Otherwise) Remarks and/or Distribution: cc: Mr. Larry Davis ~ City of Coppell Mr. Bob Barbarisi, Jr. - Natgun Corporation Mr. Gary Hendricks - Shimek, Jacobs and Finklea GEE Cmsul~mts, !~etr_ Reviewed ~f~ tlur i,rit,r wrtltca ;trpr,,val. Our Icncr~ :,t,,~ rqmrtx :,illfly only m tit,. sa,nptc IcMcd antl,t,t i.lsllcctcd and arc n.,, nccc~s;,rily i,,dicativc t,[ the quanlitic~ ,,[ ;q,[,:,rc,/tly idct,lica[ of hitnit;,r [,rllttucts