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completion of acceptance testing. <br /> C. The GCL shall be constructed concurrently with the HDPE Geomembrane and shall <br /> be completely covered with completed HDPE geomembrane at the end of each <br /> working day. GCL panel placement shall not precede HDPE geomembrane panel <br /> placement by more than four GCL panels. <br /> PART 2 PRODUCTS <br /> 2.1 PROPERTIES <br /> A. The GCL shall have the following properties. <br /> Table 02777-1 <br /> Properties for Geosynthetic Clay Liner <br /> Property Test Method Test Frequency Required Values <br /> Bentonite Swell Index ASTM D 5890 1 per 100,000 lb 24 mL/2g min. <br /> Bentonite Fluid Loss ASTM D 5891 1 per 100,000 Ib 18 mL max. <br /> Bentonite Mass/Area ASTM D 5993 40,000 sf 0.75 lb/sf <br /> ASTM D 4632 150 lbs <br /> GCL Tensile Strength 200,000 sf <br /> ASTM D 6768 45 lbs/in <br /> ASTM D 4632 35 lbs <br /> GCL Peel Strength 40,000 sf <br /> ASTM D 6496 5.3 lbs/in <br /> GCL Index Flux ASTM D 5887 1 per week 1 x 10-8 m3/m2/sec max <br /> GCL Hydraulic Conductivity ASTM D 5887 1 per week 5 x 10-9 cm/sec max <br /> 1. The GCL shall consist of a layer of bentonite encapsulated between two <br /> nonwoven geotextiles. The bentonite shall be a high quality,natural sodium <br /> bentonite. <br /> 2. The GCL shall be internally reinforced through a process such as needle <br /> punching through the top and bottom layers of geotextile and the bentonite. <br /> The reinforcing fibers shall be a polypropylene thread. The tensile strength <br /> of the fibers shall not be affected by hydration with water. <br /> FORWARD COMPOST FACILITY STORMWATER IMPROVEMENTS GEOSYNTHETC <br /> 02777 4 CLAY LINER <br />