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CONCRETE COMPRESSIVE STRENGTH TEST <br />Report Number: 23021028.0053 <br />l~erracon <br />Service Date: December 17, 2002 4172 Center Park Ddve <br />. Colorado Springs. Colorado 80916 <br />(719) 597-2T16 <br />Cli t: Ames Construction Report Date: December 17, 2002 <br />Attn: Eric Chiasson Project: PHASE IV Pad <br />18450 E. 28th Ave Cripple Creek and Victor Mine <br />Aurora CO 80011 Victor, CO <br />Number: 23021028 <br />Material /reformation <br />Specified Strength: 4500 psi @ 28 Days <br />Batch Time: 8:40 <br />Supplier: Transit Mix <br />Truck No: 92 <br />Mix I.D. No.: 14502010 <br />Water Added Onsite Before Test: <br />Water Added Onsite After Test: <br />Ticket No: 1449718 <br />0 Gallons <br />0 Gallons <br />Field Test Data <br />Sample Information <br />Sample Time: 8:55 Date Cast: December 17, 2002 <br />Technician: Steve Ludden <br />Weather Conditions: Partly Cloudy & Breery <br />Accumulative Yards: 60/2642 <br />Placement Method: Direct Discharge <br />Sample Locations: 40' South & 10' East of NW corner <br />Placement Location: UG 5041 <br />Test Result Specification Test Method <br />Slump, inches: 3Y. 4 Max ASTM C-172 <br />Air Content, %: NIA N/A ASTM C-143 <br />Concrete Temperature, o F: 56 ASTM C-231 <br />Ambient Temperature, ~ F: 25 ASTM C-31 <br />Plastic Unit W eight, pcf: N/A ASTM C-1064 <br />L~atory Test Data <br /> Age at M~imum Compressive <br />Set Specimen Diameter Area Date Test Load Stren th Fracture <br />No. ID (inches) (sq. inches) Tested (days) (Ibs) (psi Type <br />2 A 4.00 12.57 12/24/2002 7 66,840 5,320 c <br />2 B 4.00 12.57 01/14/2003 28 81.350 6,470 a <br />2 C 4.00 12.57 01/14/2003 28 83,500 6,640 c <br /> Average 6 560 ° <br />ervices -Obtain samples of fresh concrete at the placement locations, perform required field tests and cast compressive <br />strength samples. <br />• <br />tests Were performed In general accordance with applicable ASTM. AASHTO, or DOT test methods. This report is exclusively for the use of the dient <br />hated above and shall not be reproduced except in full without the written approval of Terracon. <br />dirafive of the p <br />il <br />i Test results transmitted herein are only zpplicabie <br />roperties of other apparently similar or identical <br />he actual samples tested at the loc y <br />n <br />ation(s) referenced and are not necessar ~ <br />teriais. - ~ <br />Page 2 of 6 ~ ~ <br />~~ ~ ` <br />-5 , <br />~~ <br /> , <br />