Laserfiche WebLink
1 <br />1 <br /> <br /> <br />i, <br />1 <br /> <br /> <br /> <br /> <br />1 <br /> <br /> <br />Test Designation Requirement <br />Specific Gravity ASTM D-792-66 No more than 0.15 greater <br /> Method A than the base resin density <br />Melt Index (Dependent on ASTM D-1238-85 0.6 g/10 minutes (VI.,DPE) <br />Fabrication) Condition E blown film method); <br /> <(exwsion method); <br />Low Temperature ASTM D-746-79 minus 90°F (VLDPE) <br />One test shall be performed per batch of resin. The test results shall be submitted to the Quality <br />Assurance Engineer at least seven days prior to shipping geomembrette to the site. For pre- <br />compounded resin, the base resin density (prior to the addition of carbon black) shall be <br />provided on the QC submittals. <br />4.2.7 Geomembrane Rolls <br />The geomembrane rolls shall be 40 mil thick very low density polyethylene (VLDPE) produced <br />in North America and supplied in rolls or cartons. Each roll or carton shall be idendfied with <br />a label indicating thickness, length, width and weight, manufacturer, roll number and plant <br />location. <br />Processing aids, antioxidants, and additives shall be identified by name and percent. The total <br />combined percentage of all additives shall be under 3.5 percent by weight of the finished <br />geomembrane. All additives other than carbon black shall be no greater than 0.7i 96 of the total <br />allowable value of 3.5 percent. All additives shall be thoroughly dispersed throughout the <br />geomembrane. <br />The geomembtane shall have no holes, pinholes, bubbles, blisters, gels, undispersed resin, or <br />contamination by foreign matter. There shall be no tears, abrasions, or cuts on liner edges. The <br />VLDPE geomembrane shall meet the Specifications presented in Section 4.2.3.1. <br />' 4.2.8 Extrudate Rod or Bead <br />' The extrudate rod or bead shall be a very low density polyethylene (VLDPE) for extrusion <br />welding on VLDPE geomembrane and HDPE/VLDPE tie-in only. The rod or bead shall be <br />manufactured from the same resin used to produce the geomembrane, and shall be provided by <br />' the same supplier. <br />' -iz- <br /> <br />