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130 <br />100 <br />U <br />Material Description Coal Waste <br />120 <br />110 <br />80 <br />70 <br />60 <br />50 <br />0 <br />Sample Origin Gob Pile, West Elk Mine <br />Soil Type Coal Waste <br />L- [ <br />t1 <br />� r <br />5 <br />MAXIMUM DENSITY: <br />OPTIMUM MOISTURE: <br />ROCK CORRECTION: <br />MAXIMUM DENSITY: <br />OPTIMUM MOISTURE' <br />{ <br />- -1 <br />1 - - 1 - <br />TEST RESULTS <br />TEST METHOD: <br />PREP: METHOD: <br />HAMMER: <br />FRACTION USED: <br />MOLD SIZE: <br />1 { <br />90 pcf <br />11.5% <br />ASTM D-698 A <br />MOIST <br />MANUAL <br />44 <br />4" diameter <br />Specific Gravity: <br />Liquid Limit: <br />Plastic Limit: <br />Plasiticity Index: NP <br />GRAND JUNCTION <br />LINCOLN - DeVORE, Inc. <br />Geotechnical Consultants <br />Grand Junction, Colorado <br />r -, <br />-- E - - - - <br />10 15 20 <br />MOISTURE - % of DRY WEIGHT <br />Sieve <br />Size <br />5" <br />4" <br />3" <br />2" <br />1 '/i' <br />1" <br />3/4" <br />1/2" <br />3/8" <br />4 <br />10 <br />20 <br />40 <br />100 <br />200 <br />0.02 <br />0.005 <br />ero Air Voids Curves <br />- s 1.90 <br />-1: - ::t <br />ps 1.80 <br />1 1_ - <br />s 1.70 <br />i <br />Job No. <br />94425 -GJ <br />25 <br />IL <br />Test By <br />Test Date <br />Sample # <br />1 - Percent <br />Passing <br />100 <br />76 <br />59 <br />50 <br />40 <br />31.1 <br />Drawn <br />EMM <br />30 <br />West Elk Mine <br />Somerset, Colorado <br />Oxbow Mining, Inc. <br />Somerset, Colorado <br />DRS <br />8 -20 -12 <br />Date <br />8 -20 -12 <br />