Geosynthetic Clay Liners (GCL)
Geosynthetic clay liners (GCL) is used across a range of civil engineering and building applications. It contains the clay mineral sodium bentonite - a natural sealant that swells on contact with water - and is sandwiched between two layers of geotextiles, a woven and a nonwoven, that are mechanically needle-punched together to provide shear strength.
Our top-performing, self-sealing and self-healing clay liners, comply with the latest industry codes of practice. The perfect solution for where containment is required to act as a hydraulic barrier to leachate from landfill sites or as a SUDs pond liner.
GCL 4500 is a woven fabric-like material, primarily used as a fluid barrier for use in construction of liquid waste disposal sites. The granular bentonite clay is sandwiched between a woven and nonwoven geotextile, resulting in a very strong robust product.
AREAS OF USE
GCL 4500 Specficiation
Properties of Geotextile
Properties of Bentonite
Geosynthetic Clay Liner Specification
(1) At 12% moisture content