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C©MMQ~CIAL T~~:STING L~[7RATOIaIES <br />A DIVISION OF CTL-TFiOMPSON <br />22 LIPAN STREET DENVER, COLORADO 80223 303 / 825-32D7 <br />CTL/Thompson, Inc. <br />1701 South federal <br />Suite D <br />.Denver, Colorado 80219 <br />Attention: Bill Roffman <br />Report Ident. No.: P-4931 <br />Report Date: hfay 5, 1980 <br />REPORT OF COMPRESSIVE STRENGTH TESTS. CONCRETE SPECIMENS <br />Project: Energy Fuels Coal Mine, Eckman Parlc, Pond .A <br />Location: Downstream z of 3G" dia. RCP Base <br />Cast Date: 4-22-80 Time: 3:15 By CTL <br />Concrete Mi x: G sk. -Type II , 3/4" agg, <br />Supplier: Mountain MoUile TicketNo.: C-17129 <br />PHYSICAL PROPERTIES OF CONC RETE <br />Slump 2 in. Air-Con[ent °~° Unit Weight <br />COMPRESSIVE STRENGTHS <br />Specimen Age Diameter Strength <br />No. Days In. Psi <br />SET #2: <br />1 7 5.99 4260 <br />2 7 5.99 4260 <br />Batch Time: 1:20 <br />Truck No.: 48 <br />pcf Conc. Temp. °F 65 <br />Remarks, <br />Cylinders Recieved: 4-29-80 <br />COMMERCIAL TESTING LABORATORIES <br />By ~~~t., ~%'~"EO >• Specified Strength 3000 psi @ 28 days <br />Preston B. Fraker, P.E. <br />