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• <br /> the /group. INTERFACE DIRECT SHEAR <br /> i} ASTM D5321 <br /> Checked By: <br /> Project Name: FORWARD LANDFILL Proj.No.: 809918 Date: 09/11/2000 <br /> Sample Number: INF-1 Load,psf.: 13,000 Tested By: DGC <br /> SampleDescription: SANDY CLAY/60 mil.SS TEXTURED HDPE/GRANULAR DRAINAGE. <br /> 9"x 9"BOX <br /> NORMAL <br /> LOAD COMPACTED SOIL <br /> TEXTURED HDPE <br /> GRANULAR DRAINAGE Max.Dry Density,pcf. 114.2 <br /> t Water Content% 14.2 <br /> Soil Initial w/c.,% 17.2 <br /> Initial Density,pcf. 102.8 <br /> SHEAR DIRECTION oil Final w/c.,% 20.0 <br /> All components of the liner system were exposed+3/16"on soil. Asperity,inch. 0.018 <br /> DISPLACEMENTS, SHEAR, TEST SHEAR LOAD VS. DISPLACEMENTS p <br /> .001"/div. sf. 11 CONDITIONS <br /> 0 11 1. Placed granular drainage materials <br /> 50 1877 onto the bottom box., 7000 <br /> 100 2866 2. Placed the SS textured DHPE with <br /> 150 3466 the smooth side in contact with the <br /> 200 3804 1 drainage material. Spray the textured 6000 <br /> 250 4048 surface of the HDPE with water. <br /> 300 4210 3. Placed the compacted soil(90%RC <br /> 400 4425 at opt. + 3%water content)onto the 5000 --- -- <br /> 500 4492 upper box so that the textured HDPE <br /> 600 4443 is in contact with the soil. <br /> a <br /> 700 4331 4. Apply the full normal load. a 4000 <br /> 800 4304 5. Flood the whole system with water <br /> 900 4075 and allow to hydrate and consolidate <br /> 1000 3964 for approx. 18-20 hrs. before shearing. 3000 <br /> 1100 3856 6. Shear at 0.04 inches/minute. <br /> 1200 3767 7. Failure occurs within the soil <br /> 1300 3673 ust above the interface between 2000 <br /> 1400 3607 the textured HDPE and the soil. <br /> 1500 3540 <br /> 1600 3490 1000 <br /> 1800 3413 <br /> 2000 3351 <br /> 2200 3289 <br /> 2400 3236 0 <br /> 2600 3182 0 1000 2000 3000 4000 <br /> 2800 3183 DISPLACEMENTS,(.001"/div.) <br /> 5yX9318a <br />