BENTOMAT® Geosynthetic Clay Liners
The Global Standard for GCLs
Sodium bentonite-based GCLs provide an excellent hydraulic barrier in applications where leachate in direct contact with the GCL is relatively non-aggressive, or in composite lining applications where the GCL is overlain by a thermally welded geomembrane and hydrates from uptake of innocuous moisture from the subgrade.
Interface and internal shear strength
Common applications for BENTOMAT GCLs
The SDN "double non-woven" configuration consists of a layer of sodium bentonite clay between two non-woven geotextiles, which are needlepunched together. This configuration provides the high internal and interface friction properties while offering an economical alternative to the DN configuration.
The composite laminate series consists of sodium bentonite clay and a flexible plastic membrane. The bentonite clay is encapsulated between two geotextiles that are needlepunched together. The flexible plastic membrane is laminated to the outer geotextile. This configuration provides a maximum permeability 10 times less than standard bentonite-based GCLs and is designed for the highest performance in hydraulic conditions.
BENTOMAT DN-HS is the newest addition to the BENTOMAT product Line. Using proprietary, high-density needle-punching technology to generate superior peak shear strength properties for slope stability.
- Case Study: Bailey Mine Tailings Pond Liner 164 KB
- Case Study: Barrick Goldstrike Mine Tailings Storage 146 KB
- Case Study: Copper Heap Leach Pad Liner 156 KB
- Case Study: Cordoba Spain High Speed Railroad Embankment Liner 1179 KB
- Case Study: Dychow Poland Water/Power Plant Underwater Canal Liner 166 KB
- Case Study: Gold Heap Leach Pad Liner 169 KB
- Case Study: Jackson, Wyoming Stormwater Pond Liner 734 KB
- Case Study: Juliana Canal 201 KB
- Case Study: Midwest Utility Coal Ash Disposal 165 KB
- Case Study: New Jersey Brownfield Redevelopment - GCL 124 KB
- Case Study: Rasmussen Ridge Phosphate Mine Tailing Storage Facility 169 KB
- Case Study: Raw Water Storage - Reservoir Liner 167 KB
- Case Study: Suncor Oil Sands Tailings Pond Liner 161 KB
- Case Study: TVA Kingston Fossil Plant - Coal Ash Storage 183 KB
- Case Study: Uranium Mine Tailings Disposal 166 KB
- Case Study: West Doane Lake - In Situ Stabilization 179 KB
- Case Study: Zaragoza Spain High Speed Railroad Embankment Liner 167 KB
- Case Study: Zosin, Poland Border Checkpoint Embankment Liner 169 KB
We build all of our GCLs to be compliant with GRI-GCL3 and their guide specifications can be found for use on the Geosynthetic Institute website.
Helena-Lewis and Clark National Forest Finish Repairs on Park Ditch - KTVH, June 2020
|CETCO Launches BENTOMAT DN-HS GCL to Achieve Superior Peak Shear Strength Properties - CETCO, February 2020|
|Creating a Garden Pond: How to Choose the Right Lining - Telegraph, September 2015|
|Design Considerations for GCLs in Leach Pad Liner Systems - Geosynthetics Magazine, October 2014|
|Dynamic Shear Strength of Geosynthetic Clay Liners - Geosynthetics Magazine, October 2013|
|Evaluations of Engineered Cover Systems for Mine Waste Rock and Tailings - Geosynthetics Magazine, June 2013|
|Static Shear Strength of Geosynthetic Clay Liners - Geosynthetics Magazine, February 2013|
|New Geosynthetics Advocacy Aimed at State and Local Levels - Geosynthetics Magazine, February 2013|
|Shear Strength of Geosynthetic Clay Liners: Part 1 - Strength Measurement - Geosynthetics Magazine, October 2012|
|Use of Geosynthetics in Deicing Facilities at the Cleveland Airport - Geosynthetics Magazine, June 2007|