GEOSYNTHETIC CLAY LINERS (GCL's)

GCL's are high-strength bentonite composites which combine high-quality geo-textile outer layers with an inner layer of low-permeability bentonite clay.  Bentonite is a natural sealant which activates on contact with water based liquids.  Upon hydration the bentonite in the GCL swells to form a low-permeability clay layer with a hydraulic conductivity less than 1 x 10ˉ9cm/sec.

As a result the GCL provides the same hydraulic protection as several feet of compacted clay.  GCL's can be used together with goemembranes or by themselves, for a wide range of applications including composite landfill lining and caps, liquid containment in reservoirs, irrigation canals and industrial ponds and lagoons.

Applications

Landfill caps
Secondary containment for storage tanks, storm water and wastewater retention
Composite lining systems for solid and hazardous waste landfills
Canals
Dams
Reservoirs/Ponds/Lagoons

Case Studies
For more information regarding Geomembranes and their uses click here