Bentofix®, also known as geosynthetic clay barriers (GBR-C) are needle-punched, reinforced composites that combine two durable geotextile outer layers and a uniform core of high-swelling powder sodium bentonite clay. This forms a uniform, multi-directional, shear-resistant hydraulic barrier with self-sealing and re-healing characteristics.
Landfill caps, closures and base seal
Environmental protection under roads, railways, airports
Dams and dykes
Water containment and pond applications
Structural waterproofing
Secondary containment
Mining applications
Tunnels
Versatile sealing applications possible
Immediate sealing and long-term performance with high swellable sodium bentonite powder
Outperforms compacted clay liners
Robust geotextiles encapsulate and contain the bentonite
Uniform needle-punching provides multi-directional shear strength
Thermal Lock process increases internal shear strength and interface friction angles
Self-sealing length overlaps; with BFG types all overlaps self-seal
Quick, easy and cost effective to install
Bentofix® thermal lock replaces other GCLs as well as other soil barriers on steep side slopes and assures low permeability without sacrificing slope stability. Explanation: Bentofix® is uniformly needle-punched with over 2 million fibres/m². This results in a uniform, directionally-independent shear stress transfer. Thermal Lock additionally improves the pull-out resistance and the interface friction.