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Each one of these materials required mechanical processing to some degree. The DCF <br />was processed by air drying the material and then separating the material by grain size. <br />The material was then combined to meet the following specific grain-size distribution <br />outlined in the request for testing and shown below: <br />Sieve Size Percent Passing <br />1.5 inch 100 <br />3/4 inch 70-100 <br />3/8 inch 40-70 <br />#4 5-50 <br />#40 0-20 <br />#200 0-8 <br />The Soil Liner Fill material was processed by passing the bulk material through a #4 <br />sieve, moistening to approximately optimum moisture content and allowed to cure <br />overnight. <br />1.2 Geosynthetic Materials <br />One type of geomembrane material was submitted to Golder for use in the testing <br />process. The type of geomembrane was linear low density polyethylene (LLDPE). The <br />specifics are shown below for the product: <br />Geosynthetic <br />Type Description <br />80 mil LLDPE Textured surface on one side. <br />2.0 Test Apparatus <br />The apparatus used in for this test consists of a 10 inch inside diameter steel tube, <br />approximately 18 inches in height. A series of pictures showing the testing cell at <br />various stages of assembly is shown in Figures la and lb. The cell is attached to the <br />base plate with clamps while the tie-down rods anchored to the cell base plate extend <br />upward to allow the reaction force to be applied to the sample against the top plate. A <br />porous loading plate is placed in contact with the upper drainage material and a <br />hydraulic jack used to apply the force to the sample against the top plate. A digital <br />pressure transducer is used to monitor the applied load and dial gauges measure <br />deformation. The load from the hydraulic jack is adjusted to maintain the desired <br />loading stress throughout the test. <br />