Bentofix® Thermal Lock®
Geosynthetic Clay Liners (GCLs) are needle punch reinforced composites which
combine two durable geotextile outer layers with a uniform core of natural
sodium bentonite clay to form a hydraulic barrier. Fibers from the cap/top
nonwoven geotextile are needle punched through the layer of bentonite and
incorporated into the carrier/bottom geotextile (either a woven or a
nonwoven). A proprietary heat treating process – the Thermal Lock process –
is then used to modify and more permanently lock the needle punched fibers
into place by best burnishing the carrier geotextile surface. Unique
properties, including increased internal shear resistance and long-term
creep resistance result from this production.
When hydrated under a confining load, the bentonite swells to form a low
permeability clay layer with the equivalent hydraulic protection of several
feet of compacted clay. The excellent hydraulic properties and slope
performance of the Bentofix® Thermal Lock® GCLs make the product ideal for
many lining and cap containment projects.
Primary features of the Bentofix® GCLs:
High internal shear strength
Uniform bentonite content
Excellent installation durability
More versatile than compacted clay
Increased airspace and liner efficiency
Improved leakage performance
Bentofix is a registered trademark of NAUE GmbH & Co. KG.
GSE and other marks used herein are trademarks and
service marks of GSE Lining Technology, Inc., certain of which are registered
in the U.S.A. and other countries.
