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, CONCRETE COMPRESSIVE STRENGTH TEST 1fC'ffc]COfI <br />Report Number: 23021D28.0052 <br />Service Date: November 22, 2002 a172 Center Park Drive <br />_ Colorado Springs, Colorado 80916 <br />(719) 597-2116 <br />~t: Ames Construction Report Date: November 29, 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 />Project Number: 23021028 <br />Material Information <br />Specified Strength: 4000 psi @ 28 Days <br />Batch Time: 1:33 <br />Supplier: Transit Mix <br />Truck No: 91 Ticket No: 1449710 <br />Mix l.D. No.: 145020 <br />Water Added Onsite Before Test: 0 Gallons <br />Water Added Onsite After Test: 0 Gallons <br />Field Test Data <br />Test Result <br />Slump, inches: <br />Air Content, %: <br />Concrete Temperature, F: <br />Ambient Temperature, ~ F: <br />PI stic Unit Weight, pcf: <br />rato Test Data <br />i <br />4 <br />N/A <br />N/A <br />N/A <br />N/A <br />Set Specimen Diameter Area <br />No. ID (inches) (sq. inches) <br />1 q 4.00 12.57 <br />1 g 4.00 12.57 <br />Test Method <br />ASTM C-172 <br />ASTM C-143 <br />ASTM C-231 <br />ASTM C-31 <br />ASTM C-1064 <br /> Age at Maximum Compressive <br />Date Test Load Strength Fracture <br />Tested (days) (Ibs) (Psi) Type <br />11/29/2002 7 59,000 4,690 a <br />12/06/2002 14 69,540 5,530 c <br />1 C 4.00 12.57 12/20/2002. 28 67.920 5,400 a <br />1 D 4.00 12.57 12/20/2002 28 68,500 5,450 a <br />Average 5,430 i~ <br />Services - Pertprm compressive strength determinations of test cylinders cast by others and delivered to the laboratory. <br />I • <br />ie tests were performed in general accordance with applicable ASTM, AASHTO, or DOT test methods. This report is exclusively for the use of the client <br />iicated above and shall not be reproduced except in full without the written approval of Terracon. Test results transmitted herein are only applicable <br />the actual samples tested at the location(s) referenced and are not necessarily indicative of the properties of other apparently similar or identical <br />Samole Information <br />Sample Time: 1:50 <br />Technician: Contractor <br />Weather Conditions: Sunny <br />Accumulative Yards: 10 ~ <br />Placement Method: Bucket <br />Sample Locations: Same <br />Placement Location: UG 221 <br />Date Cast: November 22, 2002 <br />Specification <br />2-5 <br />N/A <br />Page 1 of 2 ^~^~~ <br />