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the4"'grou . INTERFACE DIRECT SHEAR <br /> ASTM D5321 <br /> Checked By: <br /> Project Name: FORWARD LANDFILL Proj.No.: 809918 Date: 09/12/2000 <br /> Sample Number: INF-I Load,psf.: 17,000 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 /> Opt.Water Content,% 14.2 <br /> Soil Initial w/c.,% 17.2 <br /> Initial Density,pcf. 102.8 <br /> SHEAR DIRECTION oil Final w/c.,% 19.1 <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 <br /> .001"/div. psf. 1[ CONDITIONS <br /> 0 11 1. Placed granular drainage materials <br /> 50 2055 onto the bottom box. 7000 <br /> 100 3214 2. Placed the SS textured DHPE with <br /> 150 4128 the smooth side in contact with the <br /> 200 4732 1 drainage material. Spray the textured 6000 - <br /> 250 5116 surface of the HDPE with water. <br /> 300 5364 3. Placed the compacted soil(90%RC <br /> 400 5643 at opt. + 3%water content)onto the 5000 <br /> 500 5739 upper box so that the textured HDPE <br /> 600 5701 is in contact with the soil. <br /> 700 5577 4. Apply the full normal load. 4000 <br /> 800 5426 5. Flood the whole system with water <br /> 900 5278 and allow to hydrate and consolidate <br /> 1000 5163 for approx. 18-20 hrs. before shearing. 3000 <br /> 1100 5060 6. Shear at 0.04 inches/minute. <br /> 1200 4972 7. Failure occurs within the soil <br /> 1300 4875 -ust above the interface between 2000 <br /> 1400 4786 the textured HDPE and the soil. <br /> 1500 4754 <br /> I600 4718 <br /> 1000 <br /> 1800 4624 <br /> 2000 4544 <br /> 2200 4473 <br /> 2400 441I 0 <br /> 2600 4357 0 1000 2000 3000 4000 <br /> DISPLACEMENTS,(001"/div.) <br /> 2800 4329 <br /> 8yX93i6a <br />