L i n i n g T e c h n o l o g i e s
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L i n i n g T e c h n o l o g i e s GEOSYNTHETIC CLAY LINERS POND LINERS GEOTEXTILES DRAINAGE GEOCOMPOSITES SOIL SEALANTS CE T CO . CO M ENGINE RED LINING SYSTEMS FOR LIQUID & WASTE CON TAIN MEN T

SOLID WASTE MINING POWER UTILITIES WETLANDS AGRICULTURAL

WASTEWATER REMEDIATION CANALS DAMS TRANSPORTATION C E T C O ® i s a s u b s i d i a r y o f AMC O L ®, t h e wo r l d ’ s l a r g e s t b e n t o n i t e c omp a n y . Wi t h o v e r 8 0 y e a r s o f b e n t o n i t e mi n i n g a n d ma n u f a c t u r i n g e x p e r i e n c e , C E T C O i s a l e a d i n g ma n u f a c t u r e r o f g e o s y n t h e t i c c l a y l i n e r s , c omp l eme n t e d b y wo r l d c l a s s t e c h n i c a l s u p p o r t . We o f f e r a f u l l r a n g e o f e n g i n e e r e d e n v i r o nme n t a l l i n e r s y s t ems i n c l u d i n g B e n t oma t...

A GCL is a type of geocomposite that is frequently used in environmental containment applications and is an alternative to a traditional compacted clay liner. Bentomat geosynthetic clay liners consist of two layers of geotextiles surrounding a layer of low permeability sodium bentonite that are needlepunched together to increase internal shear resistance. BENTOMAT® GEOSYNTHETIC CLAY LINERS (GCL) SupergrooveTM Technology Bentomat products are the only geosynthetic clay liners that feature the Supergroove, a groove in the nonwoven fabric that allows the bentonite to migrate out and self-seam...

ADVANTAGES OVER COMPACTED CLAY Self-Healing & Self-Seaming Bentomat® geosynthetic clay liners contain sodium bentonite, which is a naturally occurring clay with a high affinity for water. When hydrated, sodium bentonite swells up to 15 times its original volume. This provides the ability to seal around penetrations, self-heal punctures, and self-seam at the overlaps. Better Hydraulic Performance Geosynthetic clay liners have a total thickness of less than one inch and provide better hydraulic performance than several feet of compacted clay. A fully hydrated GCL typically has a permeability...

STANDARD REINFORCED GCL Bentomat DN • Commonly used in canyon landfills where slopes are as steep as 1.5H:1V • Suitable for applications requiring high internal and interface shear strength • Consists of a layer of Volclay® sodium bentonite between two heavier weight nonwoven geotextiles • Needlepunch reinforcement Bentomat ST • Ideal for applications involving slopes up to 3H:1V • Most commonly specified GCL in the world • Consists of a layer of Volclay sodium bentonite between a woven and nonwoven geotextile • Needlepunch reinforcement Bentomat SDN • Cost-effective alternative for...

COMPOSITE LAMINATE GCL Bentomat® CLT • Ideal for more demanding landfill covers and liquid containment applications involving steep slopes • Consists of a layer of Volclay® sodium bentonite between two geotextiles laminated to a textured HDPE geomembrane • Needlepunch reinforcement Bentomat CL • Used in landfill covers, ponds, and liquid containment • Ideal for applications involving slopes up to 3H:1V • Excellent hydraulic performance and has puncture and tensile strengths beyond conventional plastic membranes • Consists of two carrier geotextiles encapsulating a layer of Volclay sodium...

CIVIL & HIGHWAY In State College, Pennsylvania, 765,000 ft2 of Bentomat® ST was installed to provide an acid rock remedial barrier. During the I-99 expansion, the Pennsylvania DOT uncovered acid rock drainage generating deposits, which produced a threat of contamination to surrounding streams and wells. The use of a GCL prevented infiltration from generating a hazardous situation. SOLID WASTE In Ashtabula, Ohio, Bentomat DN was used to line and cap a sediment disposal cell. Both the liner and cap utilized Bentomat DN in lieu of a compacted clay layer below the geomembrane. Bentomat DN was...

POWER UTILITIES Approximately 2 million ft2 of Bentomat® CL & Bentomat 600 CL were installed in a gypsum surface impoundment at a utility company. The CL series was installed to create a state-of-the-art composite liner system, utilizing the low permeability of a HDPE membrane and self-healing characteristics of a traditional GCL. The Easy Roller™ deployment system was used to meet the condensed timeline. CANALS Approximately 500,000 ft2 of GCL was used to repair a historical canal that stretches between Easton and Bristol, PA after major flood damage. Bentomat CL was chosen because it...

AKWASEAL® POND LINERS Akwaseal is a pond liner consisting of a layer of bentonite encapsulated between two textiles, which are needlepunched together. A flexible membrane liner is laminated to one of the geotextiles. The result is an easy-to-install, self-healing liner requiring little maintenance. The swelling properties of the bentonite clay and cushioning of the textiles eliminate the need for seam welding and underlayments. Bentonite clay provides a self-healing, self-seaming liner with unmatched longevity Won’t shrink, crack, float, or balloon Easy to install, requires no welding...

NONWOVEN GEOTEXTILES CETCO also provides a variety of nonwoven, needlepunched geotextiles made from polypropylene fibers for resistance against chemicals, even in harsh environmental applications. Geotextiles serve the following functions: Protection: geotextiles protect the adjacent geosynthetics such as geomembranes from puncture, which could lead to increased leakage Separation: geotextiles separate dissimilar materials to allow them to function independently Filtration: geotextiles filter liquid and waste streams to prevent clogging of the drainage layers Reinforcement: geotextiles have...

Printed on Recycled Paper The information and data contained herein are believed to be accurate and reliable. CETCO makes no warranty of any kind and accepts no responsibility for the results obtained through application of this information. 2009 CETCO CETCOLT-1109 CE T CO . CO M PRINTED ON A RENEWABLE RESOURCE USING VEGETABLE BASED INKS GREEN PRINTING • •