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Vector Engineering Inc. LARGE SCALE DIRECT SHEAR REPORT <br /> 143E Spring Hill Drive,Grass valley,CA 95945 (530)272-2448 Test Method D-5321 A <br /> LABORATORY SERVICES <br /> Client Name: Report Date: October 28,2003 <br /> ALLIED WASTE, INC. Projec7Name: FORWARD LF Project No: <br /> Superstrate: �� 021605.00 <br /> Material l: �C= Geocomposite,net towards HDPE LSN., 1003D Clam <br /> b ped <br /> Materia/2: <br /> GSE 60 mil HDPE smooth/tex,smooth towards Net csN: 1003B Clamped <br /> Substrate: Bentofix NWL,Burnished side towards raspboard LSN: 1003A Rasp Board <br /> DISPLACEMENT 3000 <br /> vs.SHEAR STRESS <br /> Test Normal <br /> Point Stress i <br /> si psf i PRELIMINARY <br /> 1. 13.9 2000 <br /> 2. 27.8 4000 <br /> 3. 55.6 8000 az000 <br /> 4. 83.3 12000 U) <br /> U)UJ <br /> i <br /> U)1000 <br /> 0 I <br /> 0.0 0.5 1.0 1.5 2.0 2.5 3.0 <br /> HORIZONTAL DISPLACEMENT(inches) <br /> STANDARD CONDITIONS: SHEAR DISPLACEMENT RATE: 0.04 in/min <br /> 1. The"gap"between shear boxes was set at 80 mil(2.0 mm) <br /> 2. The test specimens were flooded during testing unless otherwise noted. <br /> 3. High Normal Stresses,>5psi(35 kPa)was applied using air pressure. <br /> 4. Low Normal Stresses, <5psi(35 kPa)was applied using dead weights. <br /> 5. The tests were terminated after 3.0"(75 mm)of displacement unless otherwise noted. <br /> 6. Tests were performed in general accordance with ASTM procedure D-5321 using a Brainard-Killman LG-112 direct shear machine <br /> with an effective area of 12"x 12"(300 x300 mm). <br /> TEST ORIENTATION: NORMAL STRESS GEOCOMPOSITE <br /> TOP BOX WITH BOARD SPACERS GEOMEMBRANE <br /> GCL <br /> BOTTOM BOX W/RIGID SUBSTRATEAsperity Height: 0.024 In. <br /> 74. The <br /> NOTES: <br /> ecimen of GCL,(burnish down)was cut and stapled to a rasp board in the lower shear box. <br /> E,textured side on the GCL,smooth side up towards geocomposite,is free floating. <br /> posite sample were ciample to the upper box,net towards the smooth HDPE. <br /> /HDPE/Geocomposite were hydrated for 20 hrs.under a 125 psf normal stress then loaded to the Normal stress for 24 hrs <br /> 5. Shearing occurred at the interface of the geocomposite and geomembrane smooth surface. <br /> 6. The Friction Angle and Adhesion(or Cohesion)results given here are based on a mathematically determined best fit line. <br /> 7. Further interpretation should be conducted by a qualified professional experienced in geosynthetic and geotechnical engineering. <br /> results apply only to the above listed samples/materials. The data and information are proprietary and cannot be released without authorization or Vector Engineering inc. <br /> :da7, tph <br /> ng the data and result represented on this page.Client agrees to limit the liability of Vector Engineering,tnc.from client and all other parties for claims arising out o1useofthis cost for the respective test(s)represented hereon,and Client agrees to indemnity and hold harmless Vector from and against all ffabifity in excess of the aforementioned limit. <br /> L:1 fabexcel I Projects 1 1902 1 021605 1 1003A-lsds Entered By: KRC Print Date: 10/28,103 Rev By Lab Log: <br /> DCN:LSDS-rp(rev 0, 03/24103) ! <br /> Page 2 of 2 1003A <br />