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Forward Compost Facility Stormwater Improvements <br />02778 9 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 GM No. 12 25 per roll <br />Sheet Density ASTM D792, Method B or ASTM <br />D1505 <br />(a) <br />Oxidation Time of Polyolefins ASTM D3895 (c) <br />Tensile Strength Yield ASTM D638 Type IV (b) <br />Tensile Strength at Break ASTM D638, Type IV (b) <br />Elongation at Yield ASTM D638, Type IV (b) <br />Elongation at Break ASTM D638, Type IV (b) <br />Tear Resistance ASTM D1004, Die C (b) <br />Puncture Resistance ASTM D4833 (b) <br />Dimensional Stability (Each <br />Direction) <br />ASTM D1204, 212F 15 min. (e) <br />Notched Constant Tensile Load ASTM D5397 (d) <br />Low Temperature Brittleness ASTM D746 (e) <br />Carbon Black Content ASTM D1603 (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 test. <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 />e. Certification Only Required. <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.