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CONCRETE COMPRESSIVE STRENGTH TEST lferraCOn <br />Report Number: 23021028.0047 <br />Service Date: September 24, 2002 4172 Center Park Drive <br />Colorado Spdngs, Colorado 80916 <br />(7'19) 597-2116 <br />Client: Ames Construction Report Date: September 24, 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: 4500 psi @ 28 Days <br />Batch Time: <br />Supplier: Transit Mix <br />Truck No: 92 <br />Mix l.D. No.: 14502010 <br />Water Added Onsite Before Test <br />W ater Added Onsite After Test: <br />Field Test Data <br />Test <br />Slump, inches: <br />Air Content, %: <br />Concrete Temperature,o F: <br />Ambient Temperature, a F: <br />Plastic Unit Weight, pcf: <br />Ticket No: 1448873 <br />0 Gallons <br />0 Gallons <br />Result <br />3'/~ <br />2.0 <br />69 <br />65 <br />147.8 <br />Sample Information <br />Sample Time: 12:58 Date Cast: September 24, 2002 <br />Technician: Steve Ludden <br />Weather Conditions: Sunny & Breery <br />Accumulative Yards: 210/240 <br />Placement Method: Direct Discharge <br />Sample Locations: 140'N from South End <br />Placement Location: Concrete Plugs, UG-270 <br />Specification <br />2-5 <br />N/A <br />Test Method <br />ASTM C-172 <br />ASTM C-143 <br />ASTM C-231 <br />ASTM C-31 <br />ASTM C-1064 <br />Laboratory Test Data <br /> <br />Specimen Diameter <br />Area <br />Date Age at <br />Test Maximum <br />Load Compressive <br />Strenggth <br />Fracture <br /> ID (inches) (sq.inches) Tested (days) (Ibs) (PsU Type <br />5 A 4.00 12.57 10/01!2002 7 65,500 5,210 a <br />5 B 4.00 12.57 10/22/2002 28 77,000 6,130 a <br />5 C 4.00 12.57 10/22/2002 28 77,000 6,130 a <br /> Average 6,130 <br />Services -Obtain samples of fresh concrete at the placement locations, perform required field tests and cast compressive <br /> strength samples. <br />• <br />The 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 />indicated above and shall not be reproduced except in full without the written approval of Terracon. Test results transmitted herein are only applicable <br />to the actual samples tested at the location(s) referenced and are not necessarily indicative of the properties of other apparently similar or identical <br />Page 5 of 6 °1^°'~°~~+ <br />