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ENGINEERING CONSLILTRNTS ~ f~'"' <br />Project Cripple Creek & Victor Date Mazch 8, 2002 ~--- _~ `^ f"c <br />Jab Number 01-4027 - - ~j~;~--- ~ ~ -'"" "" `- <br /> i ;1 <br />i' ~ ~~ i ~ ~ ?`' 2~~2 <br />Reported to Ames Construction Copies to ~~ <br />18450 East 28th Avenue ~ <br />• ~ _ -. .. <br />, <br />~ <br />Aurora, CO 80011 ~ <br />u'"`-~-- <br />~ <br />~ ~" <br />Atta Adam Mitchell `_~~- <br />- <br />CoreSetNumber 2 <br />Compressive Strength of Concrete Cores <br />Laboratory ID # <br />Placement Location Mine Shaft Plug # 521 <br />Cores Pulled Cores collected on 3/7(02 by Ground Engineering for <br />informational purposes. <br />Concrete Poured N/A <br />Supplier / Mix ID Transit MiX . <br />Fr~ Concrete Test Data <br />S (inches) N/A <br />Air Content (%) N/A <br />T~mperature-(degr~s F) N/A <br />Unit Weight (pct N/A <br />compressive ,Strength Test Data (ASTM C 39) <br /> <br />nder Set Number <br />neter (in.) <br />;ht (in.) <br />;ht /Diameter <br />.s Sect. Area (sq. in.) <br />ection Factor <br />imam Load (lbf) <br />Comp. Strength (psi) <br />ified Strength (psi) - 28 Day <br />A B C <br />2.05 1.97 3.76 <br />3.850 2.72 6.42 <br />1.88 1.38 1.71 <br />3.30 3.06 11.12 <br />-- 0.95 0.98 <br />13300 13,,480 47,290 <br />4030 4180 4150 <br />4000 4000 4000 <br />3PT/02 - -- ~%/N2- -- X77702---- - " - - -- - -- - <br /> <br />Average Compressive Strrngth (3 Cores)- 4120 psi <br />the compressive strentrths have been - <br />d for the height to diametcr mtio. [.r~~ ii, ~~~g9neering Consultants <br />i393 Dahlia Street, Commerce Cit;~, CO, 80021-1834 <br />Phone (303 J 189-1984 Fax (303 J 189-1686 <br /> <br />