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v <br />J <br />1 <br />�T' <br />5.1 General Description of Activities <br />The geosynthetics components of WMU FU -10 consisted of geosynthetic clay liner (GCL), single -side <br />textured (SST) and double -side textured (DST) 60 -mil HDPE geomembrane; geocomposite; cushion <br />and filter geotextiles, geocomposite and geogrid. The installation and associated CQA provided for <br />each of these components are discussed within the following sections. <br />5.2 Geosynthetic Clay Liner (GCL) <br />5.2.1 General <br />The GCL product used in the construction of WMU FU -10 was Bentomat DN, manufactured by <br />Cetco. This type of GCL material consists of granular bentonite encapsulated by two non -woven <br />geotextiles. <br />5.2.2 GCL Manufacture and Delivery <br />5.2.2.1 Receiving Inspection <br />No GCL was delivered during construction of FU -10. The GCL used was from FU -08 construction. <br />Ausenco Vector CQA did inspect the GCL in storage; the rolls were stacked 3 high on pallets and <br />covered by a heavy plastic tarp. Ausenco Vector CQA verifies that the GCL was in acceptable <br />condition, still in the original factory plastic wrapping, with no evidence or indication of hydration. A <br />list of the rolls used on the northern slope areas of FU -10 and the original inventory with MQC <br />documentation can be found in Appendix H <br />5.2.2.2 GCL Conformance Testing <br />The conformance testing on the GCL was performed during FU -08 construction. Conformance <br />testing included tests for: <br />bentonite mass per unit area (ASTM D-5993); <br />® hydraulic conductivity (ASTM D-5084); <br />® peel strength (ASTM D-4632, modified for 180 degree peel of GCL); and <br />interface shear strength. <br />One sample of GCL was collected from roll #7244 for interface friction tests. <br />Interface shear testing was conducted for the GCL/geomembrane/geocomposite interface. Results <br />of the conformance testing indicated that the materials met the requirements of the project <br />specifications. A summary of the conformance test results is presented in Table 7. Detailed test <br />results, including the GCL interface tests, are provided within Appendix H. <br />Date: October 2010 <br />USVC0004800 <br />Final Construction Quality Assurance Report <br />15 <br />