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Forward Landfill WMU FU-23 <br />02778 10 HDPE GEOMEMBRANE <br />Manufacturer Quality Control Tests for 60-mil HDPE Textured Geomembrane <br />Test Test Desgination Frequency (see notes) <br />Sheet Thickness ASTM D5994 10 per roll <br />Asperity ASTM D7466 25 per roll <br />Sheet Density ASTM D1505 (a) <br />Oxidation Time of Polyolefins ASTM D3895 (c) <br />Tensile Strength Yield ASTM D6693, Type IV 2 in/min (b) <br />Tensile Strength at Break ASTM D6693, Type IV 2 in/min (b) <br />Elongation at Yield ASTM D6693, Type IV 2 in/min (b) <br />Elongation at Break ASTM D6693, Type IV 2 in/min (b) <br />Tear Resistance ASTM D1004 (b) <br />Puncture Resistance ASTM D4833 (b) <br />Stress Crack Resistance ASTM D5397 (d) <br />Carbon Black Content ASTM D4218 (b) <br />Carbon Black Dispersion ASTM D5596 (b) <br />Note: Contact OWNER for test sample location. <br />a. One per 100,000 square feet of sheet produced or one per resin batch, whichever results in the greatest number of tests. <br />b. One per 50,000 square feet or one per resin batch, whichever results in the greater number of tests. <br />c. One test per resin batch. <br />d. One test per resin batch at 30 percent of yield stress. Minimum time to failure of 200 hours. Each test performed with five samples; <br /> all must pass. Provide ultimate time to failure for each sample when data becomes available. <br /> <br /> PART 3 EXECUTION 3.1 EXAMINATION OF GEOMEMBRANE SUBSURFACE <br />A. Verify in writing to the QA/QC CONSULTANT that the surface on which the geomembrane will be installed is acceptable. Installation without written acceptance means acceptance. <br />B. Grade changes shall be rounded by the EARTHWORK CONTRACTOR to min. 6-inch radius. <br />C. No projections more than 0.25 inch or particles on top of GCL are allowed 3.2 PREPARATION <br />A. Repair damage caused to subgrade during deployment. <br />B. Round edges of anchor trenches or cushion with geotextiles. <br />C. Perform trial seam welds as follows: 1. Perform trial welds on samples of geomembrane to verify the performance of welding equipment, seaming methods, and conditions. 2. No seaming equipment or welder will be allowed to perform production welds until equipment and welders have successfully completed trial welds.