Naue Bentofix® GCL – Coated
The use of liners in civil and environmental applications is becoming more widespread as there develops a greater understanding of the effects of contaminated ground conditions on structures and the environment.
Global Synthetics are able to offer a wide range of liners that are compatible with the diverse range of applications and contaminants likely to be encountered.
Product Information: Bentofix® Geosynthetic Clay Liner (GCL) is a factory produced wide width rolls of bentonite “sandwiched” between layers of geotextile. GCLs are an engineered replacement for traditional clay lining of proposed containment structures.
Global Synthetics Geosynthetic Clay Liners offer the designer an engineered equivalency to clay without the costly import and placement and quality control costs associated with this traditional method. The volume of containment may be significantly increased with the use of a Global Synthetics Geosynthetic Clay Liner as the product offers equivalency to very thick layers of compacted clay.
Bentofix® Geosynthetic Clay Liner – X Series
Bentofix® GCL with non woven cover geotextile and woven carrier geotextile. An additional surface polyethylene (PE) coating is applied in a liquid state and then allowed to solidify on the carrier geotextile. The additional bonding of a PE coating to the needle-punched, fibre reinforcement is permanently locked and increases the pull-out resistance as well as the internal shear strength. The mass coating is 200gsm (0.2mm thick) minimum for the smooth coating and exceeds the GRI-GCL3 (USA) minimum specification requirements for coated GCLs. Also features self-sealing side overlaps.
Multicomponent GCL Bentofix® X – Coating – the add-on value The polyethylene coating is attached uniform and firmly onto the woven Bentofix® X component creating a durable bond with the needle-punched fibres. This ensures a very high fibre pull-out resistance and increases the long-term internal shear strength.
The Bentofix® X polyethylene extrusion coating ensures an immediate and enhanced barrier to gas and radon while protecting against desiccation and critical substances. In applications with high hydraulic gradients over coarse soils the additional Multicomponent GCL Bentofix® X coating prevents bentonite piping. In other applications, the barrier acts as a possible root barrier.
Applications
The coated (smooth), X-type GCL is used predominantly in the following applications:
An immediate barrier against Radon gas
Desiccation protection
Small root penetration protection
Bentonite erosion at high water heads and underlying coarse subgrades
Secondary containment (providing extra safety factor) against hazardous liquids
Features of Bentofix® Geosynthetic Clay Liner – X Series
Versatile sealing applications possible
Immediate sealing and long-term performance with high-swelling sodium bentonite powder and durable PE coating
PE-coating gives add-on values (improved fluid barrier, desiccation resistance and root barrier, as well as protection against ionic exchange and piping)
Direct coverage with concrete and lime is possible
Shear resistant overlaps possible with special adhesive tapes
Outperforms compacted clay liners
Self-sealing length overlaps; with BFG types all overlap self-seal
Quick, easy and cost-efficient installation