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CONCRETE COMPRESSIVE STRENGTH TEST lferracon <br />Report Number: 23021028.0046 <br />4172 Center Park Drive <br />Service Date: September 23, 2002 <br />Colorado Springs, Colorado 80916 <br />(719)597-2116 <br />Ctient: Ames Construction Report Date: September 23, 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: 24 <br />Mix LD. No.: 14502010 <br />Water Added Onsite Before Test: <br />Water Added Onsite After Test: <br />Field Test Data <br />Test <br />Slump, inches: <br />Air Content, %: <br />Concrete Temperature,° F: <br />Ambient Temperature, ~ F: <br />Plastic Unit Weight, pcf: <br />Laboratory Test Data <br />Specimen <br />_ ID <br />4 q <br />Ticket No: 1448852 <br />0 Gallons <br />0 Gallons <br />Result <br />4'/< <br />2.2 <br />65 <br />60 <br />146.8 <br />Diameter Area <br />(inches) (sq. inches) <br />4.00 12.57 <br />Sample Information <br />Sample Time: 12:05 Date Cast: September 23, 2002 <br />Technician: Steve Ludden <br />Weather Conditions: Sunny & Breezy <br />Accumulative Yards: 162/200 <br />Placement Method: Direct Discharge <br />Sampie Locations: Same <br />Placement Location: Concrete Plugs UG-270 <br />Specification Test Method <br />2-5 ASTM C-172 <br />N/A 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 />09/30/2002 7 74,500 5,930 a <br />4 g 4.00 12.57 10/21/2002 28 78,000 6,210 a <br />4 C 4.00 12.57 10/21/2002 28 76,500 6,090 a <br />Average .6,150 <br />Services -Obtain samples of fresh concrete at the placement locations, perform required field tests and cast compressive <br />strength samples. <br />Steve Ludden <br />eport Distribution: <br />2) Ames Construction <br />®®®~®~® <br />a b c d • f u <br />Fracture Types <br />The Terracon Companies, Inc <br />• Reviewed by: --~~ _ <br />Th a Rees <br />Construction Services Manager <br />he 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 />dicated 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 />Page 4 of4 °M°~£W <br />