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• (A) Big Sand Cones <br />Teat No. Material Moist Weight (PCP) <br />1 Loose spoil, shale 95 <br />2 Loose spoil, shale 90 <br />3 Loose spoil, shale, clayey 88 <br />(B) Nuclear Gauge <br />Teat No. Material Moist Weight (PCF) <br />5 Partially compacted spoil 113 <br />6 Loose spoil 93 <br />7 Partially compacted spoil 107 <br />8 Loose spoil 91 <br />9 Partially compacted spoil 121 <br />10 Partially compacted spoil 118 <br />11 Partially compacted spoil 121 <br />12 Loose spoil 107 <br />13 Loose spoil 102 <br />14 Loose spoil 97 <br />i <br />The average unit weight of the spoil material was approximately <br />143 pounds in place. Where testa were suede in very loose spoil <br />piles, the density ranged from 88 to 107 with the average being <br />approximately 95 pcf. Where the spoil had been partially compacted, <br />the density ranged from 133 to 121 pcf, with an average estimated at <br />approximately 116 pcf. Determination of the actual bulking factor <br />was difficult because tests could not be made in the lover portions <br />of the spoil piles. The only accessible areas were at the surface <br />and on the upper portions of eaiating loose spoil piles. Based on <br />the experience at existing operations in the area and the results of <br />these testa, the overall swell factor should range from 26 to 30 <br />• percent. For design purposes at Energy Mine No. 3, a bulking factor <br />of 26 percent has been used. <br />2.04-31 <br />