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• <br /> the(41group. INTERFACE DIRECT SHEAR <br /> ASTM D5321 <br /> Checked By: <br /> Project Name: FORWARD LANDFILL Proj.No.: 809918 Date: 09/18/2000 <br /> Sample Number: INF-213 Load,psf.: 6,000 Tested By: DGC <br /> SampleDescription: SANDY CLAY/GEONET(NET DOWN)/SS TEXTURED HDPE,60 mil,(SMOOTH SIDE UP). <br /> NORMAL <br /> LOAD COMPACTED SOIL <br /> GEONET(NET DOWN) <br /> TEXTURED HDPE Max.Dry Density,pcf. 110.5 <br /> (SMOOTH UP) Opt.Water Content,% 15.3 <br /> Soil Initial w/c.,% 17.3 <br /> Initial Density,pcf. 99.5 <br /> SHEAR DIRECTION oil Final w/c.,% 21.2 <br /> All components of the liner system were exposed+3/16"on soil. Asperity,inch. 0.018 <br /> DISPLACEMENTS, SHEAR, TESTSHEAR LOAD VS. DISPLACEMENTS <br /> .001"/div. psf. 1[ CONDITIONS <br /> =1 <br /> 0 11 1.Anchor the SS textured HDPE onto <br /> 50 764 the bottom box with the smooth side 4000 <br /> 100 1274 up and spray with water. <br /> 150 1362 2.Placed the geonet so that the net is <br /> 200 1223 in contact with the smooth HDPE and <br /> 250 1195 spray the textile(top side)with water. <br /> 300 1160 3. Compact the subgrade material to <br /> 3000 <br /> 400 1098 90%of max. dry density at opt. +2% <br /> 500 1095 water content onto the upper box and <br /> 600 1302 placed it on top of the textile(geonet). <br /> w <br /> 800 1189 4.Apply the full normal load. c <br /> 1000 1148 5.Flood the whole system with water <br /> 1200 1179 1 and allow to hydrate and consolidate 2000 - <br /> 1400 1148 for approx. 18-20 hrs. before shearing. <br /> 1600 1196 6. Shear at 0.04 inches/minute. <br /> 1800 1158 7. Failure occurs in between the <br /> 2000 1168 Geonet and the smooth face of the <br /> 2200 1160 HDPE. 1000 <br /> 2400 1158 <br /> 2600 1165 <br /> 2800 1155 <br /> 3000 1166 <br /> 3200 1151 <br /> 3400 1148 0 <br /> 3600 1145 0 1000 2000 3000 4000 <br /> DISPLACEMENTS,(.001"/div.) <br /> 3800 IL 1143 11 <br /> Syx93t8a <br />