BENTOMAT Geosynthetic Clay Liners available in a wide range of configurations, meeting your project requirements. When designing with GCLs, engineers should consider shear strength, hydraulic performance and chemical compatibility in order to assure a stable, long-lasting and high-performing liner system. BENTOMAT can be configured with various components in order to ensure maximum value and performance. Not all projects have the same performance requirements for the lining system. BENTOMAT is available in a variety of product configurations to meet the needs of your project.
Interface and internal shear strength
Depending on the site conditions the interface and internal shear strength requirements may vary. BENTOMAT is available in a non-reinforced configuration to allow maximum value for your site. It is also available with the industry leading highest needle-punch density providing maximum performance when high internal shear strength is needed.
BENTOMAT is also offered in a woven/nonwoven configuration (ST) and in a double nonwoven (DN) configuration. The DN configuration provides maximum performance when the project calls for the highest interface friction values.
BENTOMAT is available in several configurations to meet hydraulic performance requirements. The 200R, ST and DN configurations typically meet hydraulic performance requirements in relatively low hydrostatic conditions. When conditions call for enhanced hydraulic barrier performance, CETCO offers our InterLoKTM geosynthetic clay liner that exhibits a hydraulic conductivity five times less than standard geosynthetic clay liners and our Composite Laminate series incorporating smooth (CL) and textured (CLT) plastic membranes offering the highest level of hydraulic barrier performance.
BENTOMAT GCLs have proven performance and compatibility with a wide range of chemicals when used in typical applications. For maximum compatibility performance CETCO offers our RESISTEX line of GCLs.
- SupergrooveTM technology allows bentonite to migrate out and self-seam at the overlap
- Granular bentonite creates less dust during installation and is less likely to shift during needlepunch reinforcement
- Needlepunch reinforcements allows BENTOMAT to withstand shear stresses on steep slopes
- Fully hydrated GCL has a permeability of 5 x 10-9 cm/sec, approximately 20 times lower than a typical CCL
BENTOMAT® DN is a reinforced GCL consisting of a layer of sodium bentonite between two nonwoven geotextiles, which are needlepunched together.
BENTOMAT® ST is a reinforced GCL consisting of a layer of sodium bentonite between a woven and a nonwoven geotextile, which are needlepunched together.
BENTOMAT® 200R is a non-reinforced needle-punched GCL consisting of a layer of sodium bentonite between woven and nonwoven geotextiles, which are needlepunched together.
BENTOMAT® CL is a Composite Laminate reinforced GCL consisting of a layer of sodium bentonite between two geotextiles, which are needlepunched together and laminated to a smooth flexible membrane.
BENTOMAT® CLT is a Composite Laminate reinforced GCL consisting of a layer of sodium bentonite between two geotextiles, which are needlepunched together and laminated to a textured geomembrane.