Geosynthetics Clay Liner - SIGMA
Geosynthetic Clay Liner (GCL’s) are composites that combine geotextile outer layers with a core of low-permeability sodium bentonite clay. Bentonite is a natural sealant which actuates (hydrates) on contact with water. GCL’s are used as a replacement for compacted clay liners. Upon hydration the bentonite in the Bentonite Waterproof Blanket swells to form a low […]
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