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the I F, <br /> Q INTERFACE DIRECT SHEAR <br /> 1grASTM D5321 <br /> Checked By: <br /> Project Name: FORWARD LANDFILL Proj.No.: 809918 Date: 09/28/2000 <br /> P 0 <br /> Sample Number: INF-2A Load,psL: 17,000 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, cf 110.5 <br /> (TEXTURED UP) Opt.Water Content,% 15.3 <br /> Soil Initial w/c.,% 17.3 <br /> Initial Density, f. 99.5 <br /> SHEAR DIRECTION Soil Final w/c.,% L17.8 <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 2651 the bottom box with the textured side 6000 <br /> 100 2316 up and spray with water. <br /> 150 2249 2. Placed the hydrated GCL(24 hrs) <br /> 200 2302 on top of the textured HDPE. 5000 <br /> 250 2386 3. Compact the subgrade material to <br /> 300 2620 0%of max. dry density at opt. +2% <br /> 400 3413 water content onto the upper box and <br /> 500 4427 placed it on top of the GCL. 4000 --- <br /> 600 5397 4.Apply the full normal load. y <br /> 700 5796 S. Flood the whole system with water a <br /> 800 5822 and allow to hydrate and consolidate <br /> 900 5426 or approx. 18-20 hrs. before shearing. � 3000 <br /> 1000 4514 6. Shear at 0.04 inches/minute. <br /> 1100 3652 7.Failure occurs in between theCOD <br /> 1200 3058 GCL and the textured HDPE. 2000 <br /> 1300 2725 tarts shearing inside the GCL. <br /> 1400 2484 <br /> 1500 2409 <br /> 1600 2324 1000 <br /> -------------- <br /> 1800 2176 <br /> 2000 2101 <br /> -------------- <br /> 2200 2012 0 <br /> 2400 1945 <br /> 0 1000 2000 3000 <br /> 2600 1895 <br /> DISPLACEMENTS,(.001"/div.) <br /> 2800 1874 <br /> SyX,93tSa <br />