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COMiil1~ClAL TE'ST1f01G L~O~lATOFaIE~a <br />A DIVISION OF CTL-THOMPSON <br />22 LIPAN STREET DENVER, COLORADO 80223 303 / 825-3207 <br />• CTL/Thompson, Ittc. Report Ident. No.: P-4940 <br />1701 South Federal <br />Suite D Report Date: 6fay 5, 1980 <br />Denver, Colorado 80219 h{ay 28, 1980 <br />Attention: Bill Hoffman <br />REPORT OF COMPRESSIVE STRENGTH TESTS. CONCRETE SPECIMENS <br />Project: Energy Fuels Coal ~4ine, Eckman Park, Pond A <br />Location: Concrete Cutoff Collars <br />Cast Date: 4-25-80 Time: 1:25 By CTL <br />Concrete Mix: Type II 6 sk. , 3/4" agg. Batch Time: 12:00 <br />Supplier: {yestern Slope Ticket No.: 42303 Truck No.: 47 <br />PHYSICAL PROPERTIES OF CONCRETE <br />Slump 8 in. Air~Content °~ Unit Weight pcf Conc. Temp. °F 53 <br />COMPRESSIVE STRENGTHS <br />Specimen Age Diameter Strength <br />. <br />No. Days In. Psi <br />SET #4: <br />1 7 6.00 1340 <br />Held 1 cylinder for 28-day test. <br />2 28 6.00 3090 <br />3 28 6.00 3150 <br />4 28 6.00 3130 <br />Cylinders Received: 4-29-80 <br />COMME/R~CIAL TESTING LABORATORIES <br />• By ~/`~ ~ri'7L ~'~ ~~`y~Y Specified Strength <br />Preston B. Fraker, P.E. <br />Remarks, <br />Average: 3105 <br />3000 psi @ 28 days <br />