Description :

ActiTex is an active waterproofing membrane of high strength geotextiles encapsulating a layer of
sodium Bentonite (@ 4.88kg/m2). Using a non-woven & woven geotextile which are needle-punched together to provide a robust and flexible delivery system, the layer of sodium bentonite is uniquely pre-confined within a strong yet pliable membrane. ActiTex works by forming a low permeability barrier when in contact with
water. Once wetted unconfined sodium bentonite can swell up to 15 times its dry volume. ActiTex is
designed to allow small worms of sodium bentonite to pass through into the concrete sealing any small cracks caused by ground settlement or concrete shrinkage. The geotextile fibres are encapsulated into the surface of newly poured concrete forming a tenacious mechanical bond, eliminating the risk of water tracking. The swelling abilities allow ActiTex to self heal small tears or penetrations. The product is very robust, flexible, and can be installed in all weather conditions. Application is under slab, around foundations, the back of retaining walls, and it can be applied to property-line construction, where temporary works are used to form the basement excavation (secant piling, contiguous piling, steel sheet piling, diaphragm walling, etc.). Laps are typically 100mm and are self-sealing. There are no requirements for additional products in the laps, which are automatically sealed thanks to bentonite extrusion from the woven surface and cut ends of the membrane. Whilst free-swell of the membrane is restricted due to the needlepunching, in a confined state (including fully peeladhered ActiTex to concrete), swelling bentonite is forced through the weave and cut ends to provide waterproofing continuity at the concrete interface.