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the d INTERFACE DIRECT SHEAR <br /> â–ºgroup ASTM D5321 <br /> p <br /> Checked By: <br /> Project Name: FORWARD LANDFILL Proj.No.: 809918 Date: 09/27/2000 <br /> Sample Number: INF-2A Load,psf.: 13,000 Tested By: DGC <br /> SampleDescription: SANDY CLAY/GCL/SS TEXTURED HDPE,60 mil,(TEXTURED SIDE UP). <br /> NORMAL <br /> LOAD COMPACTED SOIL <br /> GCL <br /> TEXTURED HDPE Max.Dry Density,pcf 110.5 <br /> (TEXTURED UP) Opt.Water Content,% 15.3 <br /> Soil Initial w/c.,% 17.3 <br /> Initial Density, cf. 99.5 <br /> SHEAR DIRECTION Soil Final w/c.,% 18.1 <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. CONDITIONS <br /> 0 11 1. Anchor the SS textured HDPE onto <br /> 50 1865 the bottom box with the textured side 6000 <br /> 100 1716 up and spray with water. <br /> 150 1700 2. Placed the hydrated GCL (24 hrs) <br /> 200 1753 on top of the textured HDPE. <br /> 250 1877 3. Compact the subgrade material to 5000 <br /> 300 2078 90%of max. dry density at opt. +2% <br /> 400 2811 water content onto the upper box and <br /> 500 3701 laced it on top of the GCL. 4000 <br /> 600 4316 4. Apply the full normal load. <br /> 700 4622 5. Flood the whole system with water o. <br /> 800 4825 and allow to hydrate and consolidate <br /> 900 4978 or approx. 18-20 hrs. before shearing. 3000 <br /> 1000 5022 6. Shear at 0.04 inches/minute. <br /> 1100 4772 7. Failure occurs in between the x <br /> 1200 4345 GCL and the textured HDPE. 2000 <br /> 1300 3518 1 Starts shearing inside the GCL. <br /> 1400 2882 <br /> 1500 2423 <br /> 1600 2140 1000 <br /> 1800 1838 <br /> 2000 1758 <br /> 2200 1636 0 <br /> P1 1 <br /> 2400 1563 <br /> 0 1000 2000 3000 <br /> 2600 1493 <br /> DISPLACEMENTS,(.001"/div.) <br /> _ 2800 1479 <br /> bn9315a <br />