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TABLE 2 <br />INTERFACE SHEAR TEST CONFIGURATION (TEST SERIES 4 and 5 - SANDWICH TEST) <br />FOOTHILL SANITARY LANDFILL -AREA 2A, SAN JOAQUIN COUNTY, CA <br />Notes: <br />1. Foundation Laver and Sideslope Subgrade Soil <br />• Foundation Layer soil and Sideslope Subgrade soil are the same materials that have been shipped to SGI. <br />• Compact Foundation Layer soil and Sideslope Subgrade soil at 90 percent relative compaction and OMC + 4% based on ASTM D1557 (ydm_ = 98.5 pcf, OMC = 23.0%). <br />2. LCRS Gravel <br />• Use rounded to subangular gravel, 3/4"+/- nominal size, with 20% of sand. <br />3. Operations Layer Soil <br />• Loosely tamp the Operations Layer soil at its natural moisture content. <br />4. Soak the GCL separately outside the shear box at 125 psf, Apply normal stress first and then start soaking. <br />S. For the Base Liner, spray lower surface of GCL and upper surface of geomembrane with distilled water. <br />6. For the Side Slope Liner, spray lower surface of geocomposite, both surfaces of geomembrane and upper surface of GCL with distilled water. <br />7. Please measure and report asperity height of geomembrane (both sides). <br />8. Please measure and report moisture content of GCL before and after the test and peel strength of GCL. <br />AdVajzced <br />P:\14 P, - s\14-101 (SJCDPW North County and Foothill)\Foothill CQA\Geosynthetics\Conforman enface\Table 1 -Interface Configuration -Foothill LF REV] xlsx _c! • 'fes <br />Test Conditions <br />Consolidation <br />GCL Hydration <br />Entire System <br />Test <br />Test Interface Descri tion <br />(Distilled <br />W ter) <br />D stilledrWater <br />Roll Number at Normal Stress (psf) of <br />Material 12,000 8,000 6,000 4,000 1,000 Orientation <br />Stress <br />(psf) <br />Time <br />(hours) <br />Stress <br />(psf) <br />Time <br />(hours) <br />Series <br />No. <br />Shear <br />Box <br />Soil <br />Compaction <br />Normal <br />Stress <br />s <br />Shear <br />Rate <br />in min <br />Shear <br />Displ. <br />in <br />4 <br />Base <br />Liner <br />Upper Box: Foundation Layer Soil - - - - N/A - See Note 1 <br />12" x 12" <br />See notes <br />below <br />1,000 <br />4,000 <br />125 <br />125 <br />20 <br />20 <br />1,000 <br />4,000 <br />16 <br />16 <br />0.04 <br />0.04 <br />3.00 <br />3.00 <br />502252263 <br />Hydrated Bentoliner NWL 45 GCL & 502252383 502252261 502252261 502252261 Heat-treated side up against foundation layer <br />502252383 soil <br />60 -mil DST HDPE Geomembrane 108181768 108181768 108181768 108181768 108181768 - <br />6,000 <br />125 <br />20 <br />6,000 <br />16 <br />0.04 <br />3.00 <br />Lower Box. LCRS Gravel - - - - - N/A - See Note 2 <br />8,000 <br />125 <br />20 <br />8,000 <br />16 <br />0.04 <br />3.00 <br />12,000 <br />125 <br />20 <br />12,000 <br />16 <br />0.04 <br />3.00 <br />5 <br />Side <br />Slope <br />Liner <br />Upper Box: Operations Layer Soil - - - - - N/A - See Note 3 <br />12" x 12" <br />See notes <br />below <br />1,000 <br />4,000 <br />6,000 <br />125 <br />125 <br />125 <br />20 <br />20 <br />20 <br />1,000 <br />4,000 <br />6,000 <br />16 <br />16 <br />16 <br />0.04 <br />0.04 <br />0.04 <br />3.00 <br />3.00 <br />3.00 <br />Outside (net strands parallel to MD) down <br />300 -mil Double -Sided Geocomposite 131465743 131465743 131465743 131465743 131465743 against HDPE <br />60 -mil DST HDPE Geomembrane 108181768 108181768 108181768 108181768 108181768 - <br />Hydrated Bentoliner NWL 45 GCL 502252376 502252376 502252376 502252376 502252376 Heat-treated side down against subgrade soil <br />8,000 <br />125 <br />20 <br />8,000 <br />16 <br />0.04 <br />3.00 <br />Lower Box: Sideslope Subgrade Soil N/A - See Note 1 <br />12,000 <br />125 <br />20 <br />12,000 <br />16 <br />0.04 <br />3.00 <br />Notes: <br />1. Foundation Laver and Sideslope Subgrade Soil <br />• Foundation Layer soil and Sideslope Subgrade soil are the same materials that have been shipped to SGI. <br />• Compact Foundation Layer soil and Sideslope Subgrade soil at 90 percent relative compaction and OMC + 4% based on ASTM D1557 (ydm_ = 98.5 pcf, OMC = 23.0%). <br />2. LCRS Gravel <br />• Use rounded to subangular gravel, 3/4"+/- nominal size, with 20% of sand. <br />3. Operations Layer Soil <br />• Loosely tamp the Operations Layer soil at its natural moisture content. <br />4. Soak the GCL separately outside the shear box at 125 psf, Apply normal stress first and then start soaking. <br />S. For the Base Liner, spray lower surface of GCL and upper surface of geomembrane with distilled water. <br />6. For the Side Slope Liner, spray lower surface of geocomposite, both surfaces of geomembrane and upper surface of GCL with distilled water. <br />7. Please measure and report asperity height of geomembrane (both sides). <br />8. Please measure and report moisture content of GCL before and after the test and peel strength of GCL. <br />AdVajzced <br />P:\14 P, - s\14-101 (SJCDPW North County and Foothill)\Foothill CQA\Geosynthetics\Conforman enface\Table 1 -Interface Configuration -Foothill LF REV] xlsx _c! • 'fes <br />