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the®INTERFACE DIRECT SHEAR <br />group <br />ASTM D5321 <br />Checked By: <br />roject Name: FORWARD LANDFILL Proj. No.: 809918 Date: 09/05/2000 <br />Sample Number: INF -I Load, psL: 1,000 Tested By: DGC <br />SampleDescription: SANDY CLAY / 60 mil. SS TEXTURED HDPE / GRANULAR DRAINAGE. <br />NORMAL <br />LOAD COMPACTED SOIL <br />TEXTURED HDPE <br />GRANULAR DRAINAGE ax. Deni cL 114.2 <br />t. Water Content,% 14.2 <br />oil Initial w/c., % 17.2 <br />itial Density, cf. 102.8 <br />SHEAR DIRECTION oil Fina] w/c., % 24.0 <br />All components of the liner system were exposed + 3/16" on soil= city, inch. 0.018 <br />PLACEMENTS,I <br />SHEAR,� <br />7'E$'1' <br />.001'7div st. CONDITIONS <br />0 <br />1.1 <br />1. Placed granular drainage materials <br />50 <br />310 <br />onto the bottom box. <br />100 <br />321 <br />Placed the SS textured DHPE with <br />150 <br />316 <br />the smooth'side in contact with the <br />200 <br />.316 <br />drainage material. Spray the textured <br />250 <br />314 <br />urface of the HDPE with water. <br />300 <br />316 <br />3. Placed the compacted soil (90% RC <br />400 <br />312 <br />at opt. + 3% water content) onto the <br />500 <br />311 <br />upper box so that the textured HDPE <br />600 <br />311 <br />is in contact with'thesoil. <br />800 <br />312 <br />4. Apply the full normal load. <br />1000 <br />310 <br />5. Flood the whole system with water <br />1200 <br />307 <br />and allow to hydrate and consolidate <br />1400 <br />304 <br />or approx. 18-20 hrs. before shearing. <br />1600 <br />302 <br />6. Shear at 0.04 inches /minute. <br />1800 <br />300 <br />7. Failure occurs within the drainage <br />2000 <br />297 <br />aterials and the smooth side of the <br />2200 <br />291 <br />DPE. Visible linemarks created on <br />2400 <br />292 <br />the smooth side of the HDPE by the <br />2600 <br />289 <br />rainage material. <br />2800 <br />288 <br />3000 <br />286 <br />3200 <br />285 <br />3400 <br />284 <br />3600 <br />284 <br />3800 <br />282 <br />SHEAR LOAD VS. DISPLACEMENTS' <br />700^ <br />6001 <br />500( <br />4004 <br />0 <br />a <br />3000 <br />2000 <br />1000 <br />0 <br />0 1000 2000 3000 4000 <br />DISPLACEMENTS, (.001"/div.) <br />StX93t8a <br />C <br />