ARCHIVED REPORTS_2013_3 - Laserfiche WebLink

Home Browse Search

• • carbon black dispersion (ASTM D-5596); • thickness (ASTM D-5994); • tensile properties (ASTM D-6693); • asperity height (GRI GM -12); and • interface shear strength testing. • Final Construction Quality Assurance Report— WMU FU -13 Forward Landfill A total of six 60 -mil thick HDPE geomembrane samples were tested for conformance. The six samples consisted of 3 for the double -sided geomembrane and 3 for the single sided geomembrane. Based on 525,000 ft2 of HDPE received, this testing frequency corresponds to one test per 87,500 ft2 which satisfies the requirement of one test per 100,000 ft2. Results of the conformance testing indicated that the materials met the requirements of the project specifications. A summary of the conformance test results is included in Table 6. In addition, large-scale direct shear testing was conducted on the clay/geomembrane and geomembrane/geotextile interfaces (the GCL interface shear testing is discussed in Section 5.1). Results of the conformance testing indicated that the materials met the requirements of the project specifications. Detailed test results including the geomembrane/geotextile interface shear tests are included in Appendix I. 5.3.2 Geomembrane Installation 5.3.2.1 Geomembrane Deployment Surface Preparation: Prior to installation of the HDPE, GLA's CQA Monitor observed that the GCL or compacted clay liner had been installed as required by the project Specifications and there was no change in the surface condition that required repair work. Layout Drawing: The liner contractor, Comanco, submitted a proposed panel layout drawing that showed the general panel configurations and dimensions. These drawings were reviewed and approved by GLA's Engineer of Record prior to the deployment of the HDPE geomembrane. The as -built Panel Layout drawings are included in Appendix I. 21 Geo -Logic ASSOCIATES