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• <br /> theINTERFACE DIRECT SHEAR <br /> ®u <br /> j. ASTM D5321 <br /> Checked By: <br /> Project Name: FORWARD LANDFILL Proj.No.: 809918 Date: 09/26/2000 <br /> Sample Number: INF-2A Load,psL: 6,000 Tested By: DGC <br /> SampleDescription: SANDY CLAY/GCL/SS TEXTURED HDPE,60 mil,(TEXTURED SIDE UP). <br /> NORMAL <br /> LOAD I COMPACTED SOIL <br /> �r 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, cf. 99.5 <br /> SHEAR DIRECTION Soil Final w/c.,% 18.6 <br /> All components of the liner system were exposed+3/16"on soil. Aspenty,inch. 0.018 <br /> DISPLACEMENTS, SHEAR, TEST SHEAR LOAD VS. DISPLACEMENTS <br /> .001"/div. psf. CONDITIONS <br /> - <br /> [--0 11 1.Anchor the SS textured HDPE onto <br /> 50 885 the bottom box with the textured side 6000 <br /> 100 998 up and spray with water. <br /> 150 1005 2. Placed the hydrated GCL(24 hrs) <br /> 200 1014 on top of the textured HDPE. <br /> 250 1030 3. Compact the subgrade material to 5000 <br /> 300 1118 90%of max. dry density at opt. +2% <br /> 400 1464 water content onto the upper box and <br /> 500 1860 laced it on top of the GCL. 4000 <br /> 600 2128 4.Apply the full normal load. <br /> Ir <br /> 800 2400 5. Flood the whole system with water a <br /> 1000 2588 and allow to hydrate and consolidate <br /> 1200 2708 or approx. 18-20 hrs. before shearing. 3000 <br /> 1400 2804 6. Shear at 0.04 inches/minute. <br /> w <br /> 1600 2817 7. Failure occurs in between the x <br /> 1800 2779 GCL and the textured HDPE. 2000 <br /> 2000 2540 <br /> 2200 2154 <br /> 2400 1791 <br /> 2600 1528 1000off <br /> 2800 1341 <br /> 3000 1145 <br /> 3200 1012 <br /> 0 <br /> 3400 947 <br /> 3600 935 0 1000 2000 3000 4000 <br /> 3800 928 DISPLACEMENTS,(.001"/div.) <br /> SyX93iSo <br />