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Geosynthetic Clay Liners (GCL)
GCL’s are sodium bentonite and geotextile/geomembrane composite liners engineered for a variety of containment applications. The sodium bentonite is imbedded and needle punched within the durable geotextile/geomembrane layers to create a thin hydraulic barrier, which is resistant to bentonite migration. Because of the self-healing bentonite base, they offer more economic and functional advantages than traditional compacted clay liner construction.
Additionally, their ability to contour to changes in elevation as well as their natural wicking properties, make these types of fabrics ideal for natural streambed lining.
GCL’s are proven in the harshest of environmental conditions. With their high shear strength and low hydraulic conductivity, they are crucial components in most landfill and mine applications.
GCL Info Sheet
GCL Installation Guidelines
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