CETCO Brand Geosynthetic Clay Liners (GCLs)

BENTOMAT ST - Reinforced GCL Product Features

  • High strength chemically resistant geotextiles

  • Low permeability bentonite clay

  • Durable and consistent needlepunched internal reinforcement

  • High Performance

 

PRESS RELEASES

Ashapura sets up new geosynthetic clay liners plant in Bhuj
    Chemical Weekly, 10 January 2006.

 

Waste Containment Applications

  • Liner Systems

  • Cover Systems

  • Mining

Liquid Containment Applications

  • Secondary Containment for Tank Farms

  • Storm Water Impoundments

  • Ponds and Lagoons

  • Wetlands

  • Canals

  • Highway and Civil Projects

 

Needle Punching Process

CETCO's patented needlepunching process provides high peel and sheer strength through a uniformly high density of needlepunched fibres.

BENTOMAT ST

Bentomat ST is a reinforced GCL consisting of a layer of Volclay sodium bentonite encapsulated between two geotextiles, needlepunched together for maximum performance under a wide variety of field conditions. This integrated matrix of bentonite and needlepunched fibers provides high shear and allows Bentomat to maintain low permeability. Bentomat ST has a wooven, slit-film upper geotextile for maximizing intimate contact in composite liner systems.

Advantages

  • Natural enviromental stress from freeze-thaw cycles has no affect on GCLs performance. CCLs can crack under these conditions, leading to a significant increase in leakage.
     

  • GCLs offer better resistance to differential settlement which is common in land fill cover applications, and can be handled by the GCLs high tensile strength and bentonite's high plasticity and self-healing capabilities.
     

  • GCLs provide higher performance and occupy virtually no air space.
     

  • Installation are less sensitive to inclement weather conditions.
     

  • Factory controlled quality, reduces the cost of CQA testing in the field.
     

  • GCLs reduce hauling costs and associated impacts. It takes up to 150 truckloads of clay to equal the coverage of just one truckload of GCL.