BENTOMAT® Geosynthetic Clay Liners

Available in a wide range of configurations to meet any project requirement

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.

 

NEW!

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.

 

    Overview

    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.

     

    Hydraulic performance

    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.

     

    Compatibility

    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 RESISTEXTM line of GCLs.

    Features of BENTOMAT

    • 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
    Featured Products

    BentoMat_DN.v2
    BENTOMAT® DN
    BENTOMAT® DN is a reinforced GCL consisting of a layer of sodium bentonite between two nonwoven geotextiles that are needle-punched together

    BentoMat_DN.v2

    BENTOMAT® DN-HS
    BENTOMAT® DN-HS is a reinforced GCL consisting of a layer of sodium bentonite between two polypropylene nonwoven geotextiles that are needle-punched together. This double nonwoven GCL provides higher strength as compared to ordinary double nonwoven GCLs while maintaining the advantage of higher interface friction performance.

    BentoMat_ST.v2

    BENTOMAT® ST
    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_ST.v2

    BENTOMAT® 200R
    BENTOMAT® 200R is a non-reinforced needle-punched GCL consisting of a layer of sodium bentonite between woven and nonwoven geotextiles, which are needle-punched together

    BentoMat_CL.v2

    BENTOMAT® CLT
    BENTOMAT® CLT is a Composite Laminate reinforced GCL consisting of a layer of sodium bentonite between two geotextiles, which are needle-punched together and laminated to a textured geomembrane

    BentoMat_CL.v2

    BENTOMAT® CL
    BENTOMAT® CL is a Composite Laminate reinforced GCL consisting of a layer of sodium bentonite between two geotextiles, which are needle-punched together and laminated to a smooth flexible membrane.

    Technical Data Sheets
    CETCO