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. ~.. ~ COMMEFl~AL TESTING LAB~TORIES <br />c: <br />• ~: A DIVISION OF CTL/THOMPSON. INC. <br />April 4, 1994 <br />Golder Associates <br />200 Union Bivd.lSuite 500 <br />Lakewood, Colorado 80228 <br />Attention: Lee Ann Bush <br />Subject: Pikes Peak Mining Company <br />Project No. 9432720.013, AJAX _ <br />CTL Job No, 8862A <br />Dear Ms. Bush: <br />This report presents results of physical properties tests performed on a sample of crushed <br />coarse aggregate. The material was delivered to our laboratory on March 7, 1994. <br />Tests were performed in general conformance with the applicable ASTM test methods. A <br />summary of test results is as follows: <br />lest Results ASTM C 33 Requirements <br />Gradation (ASTM C 136) See Table 1 - <br />-NO. 200 (ASTM C 117) 1.8% 1.0% (typical for <br /> concrete aggregate) <br />Specific Gravity/ Absorption <br />(ASTM C 127) 2.64/0.7°!o WA <br />Lightweight Pieties <br />(ASTM C 123) D.0% 0.5% <br />Clay Lumps b Friables <br />(ASTM G 142) 0.1% 2.0% Max. <br />Sodium Soundness Loss <br />(ASTM C $8) 12% 12.D% Max. <br />L.A. Abrasion 27.8% 50.0% Max <br />Organic Impurities <br />(ASTM C 40) Plate 1 Plate 3 or Less <br />Complete test results are presented in Table No. 1 <br />22 ~~=a:~l STgEET .E:~IVE~. COLORADO 80223 303 / AZ5-3207 <br />