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O F C. O L O rt A 'O ,0~, 1 N'"C~. . <br />OE01BdMK'aL 1rA7E~11N8 a enmonrelpL 00lalULLYA9 <br />~. <br />1 <br />1 <br />ll <br />t( <br />r. <br />i~ <br />1 <br />,~ <br />i~ <br />1 <br />f <br />September I8, 1989 <br />Greg Laricki 4 Associates <br />165 Court Place, Suite ]09 <br />Denver, Colorado 80402 <br />1-tteatioa: Mr. Oreg Lericki <br />Subject: Laboratory Testing <br />Dear Mr r Lericki: <br />Job Mo. 1-1104-814-00 <br />transmitted heraxith are the results of the reQuested laboratory testing <br />performed on a sample subritted by you to our laboratory. 1 Modified Proctor <br />ras performed rhich determined a mit reigbt of 14].0 pcf (dry) at as optiaum <br />awisture content of 10.51. R loose dry density of the subject material ras <br />determined by measurements to be 99.0 pcf. Classification testing determined <br />that the suple ras a Sand, rith silt and gravel, rith a Unified Classification <br />of SY-SM, and an 1115MT0 Classification of 11-1-a (0). <br />Direct shear testing ras performed on three samples of -~~ sieve size material <br />compacted to 116.0 dry pcf at 10.51 moisture. These samples rere sbeared at <br />normal stresses of 4 ksf, i kaf and 8 ksf, respectively, at a rate o! 1.7 : <br />30-• inches pet minute. R plot of the resulting shear stresses indicates a <br />Lriction angle of 16.8 degrees and a cohesion o! 0. 1ldditioaal intonation for <br />the testing performed is presented on Table 1, and Pignres 1 through 3. <br />If re can be of Lurther assistance in evaluating these data, please contact us <br />at your convenience. <br />Respectfully subtitled, <br />y07t COMSULTIIMTS OT COLORA <br />~/~~~`~M9,~ <br />Mary E. Broacucia, C.E.T. <br />Laboratory Manager <br />MH6/ds <br />D0, ~ „~~',E,~ J <br />as ,r" ~ •~ <br />i ~~ <br />~_~~1 <br />:q'. <br />-.,~~.-- <br />lttachmeats: Table 1, Sieve 1-nalysis Results <br />yigure 1, Sieve Jlnalysis graph <br />yignre 4, Proctot Curve <br />yignra 3, Direet Shear Results <br />,. - a <br />oenv~oPP~: srear~a.oena.wesL•wanswag..can.aoeoooa•(aoo)ax~ae~e•r~xpoe~aa2~.eaie ,y :;., , <br />..<: <br /> <br />;,:;~ .~:.,it~;,.. <br />~ <br />w M <br />"~ .:~tfi3r :`fir <br />.l <br /> ay J}:i <br /> <br /> .V~ <br />. `7 ?~ <br />Reviered by <br />