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Bentonite Waterproofing Systems

CETCO produces several waterproofing membranes using sodium bentonite, a natural clay with extremely low permeability and self-sealing properties.

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Reduces construction impacts

Included here are various erosion-control products, foundation products that eliminate the need for excavation, and exterior stains that result in lower VOC emissions into the atmosphere. Fluorescent lamp and ballast recyclers and low-mercury fluorescent lamps reduce environmental impacts during maintenance and disposal of luminaires.

CETCO produces several waterproofing membranes using sodium bentonite, a natural clay with extremely low permeability and self-sealing properties. These membranes may be used beneath concrete slabs, against backfilled foundation walls, and for property line construction, such as lagging and metal sheet piling retention walls. Also, CETCO provides bentonite-based concrete joint waterstops that activate and swell to form a positive seal. CETCO claims that the products typically contain no VOCs and require no solvent-based primers or adhesives. Bentonite waterproofing can be installed on "green" concrete as soon as the forms are removed in a wide range of weather conditions, including freezing temperatures.

07 17 00: Bentonite Waterproofing

Bentonite is a highly expansive natural clay. When exposed to moisture, it swells "shut," providing effective waterproofing. Products are available in sheets or panels.

Bentonite membranes may be used beneath concrete slabs, against backfilled foundation walls, and for property line construction, such as lagging and metal sheet piling retention walls. Some companies provide , bentonite-based concrete joint waterstops that activate and swell to form a positive seal. GreenSpec lists products that contain no VOCs and require no solvent-based primers or adhesives.

Bentonite waterproofing can be installed on "green" concrete as soon as the forms are removed in a wide range of weather conditions, including freezing temperatures.

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