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r;:-,, <br />;~ <br />7.5 Bentomat end-of-panel, bentonite-enhanced, overlapped seams are constructed first by <br />overlapping the adjacent panels, exposing the underlying panel, and then applying a continuous <br />bead or fillet of granular sodium bentonite (supplied with the GCL) 12" from the edge of <br />the underlying panel (Figure 11). The minimum application rate at which the bentonite is <br />applied is one-quarter pound per linear foot (0.4 kg/m). <br />7.6 If longitudinal bentonite enhanced seams are required, they are constructed first by overlapping <br />the adjacent panels by a minimum 6-inches (150 mm), exposing the underlying edge and apply- <br />ing acontinuous bead of granular bentonite approximately 3-inches (75 mm) from the edge. The <br />minimum application rate for the granular bentonite is one quarter pound per linear foot <br />(0.4 kg/m). <br />BENTOMAT END-OF-PANEL OVERLAPPED SEAM <br />2' overlap Overlapped Seam <br />Overlying Panet <br />12" from edge-of-panel <br />SEALING AROUND PENETRATIONS AND STRUCTURES <br />8.1 Cutting the GCL should be performed using a sharp utility knife. Frequent blade changes <br />are recommended to avoid irregular tearing of the geotextile components of the GCL during <br />the cutting process. <br />8.2 The GCL should be sealed around penetrations and structures embedded in the subgrade in <br />accordance with Figures 12 through 14. Granular bentonite or a bentonite mastic shall be used <br />liberally (approx. 2lbs./ln ft. or 3 kg/m) to seal the GCL to these structures. <br />1 <br />o° <br />BENTOMAT/CLAYMAX Installation Guidelines <br />11 of 15 <br />