Contact person: Lisa Kang

lisa(at)chinarongwei.net

We can produce various specifications of Hydrophilic bentonite strip according to the customers requirements.

Description of Hydrophilic bentonite strip

The bentonite strip is a green flexible hydrophilic strip of approx. 25 x 20 mm, made of natural sodium bentonite clay and synthetic rubber. The bentonite strip comes in lengths of approx.

5 metres. Due to shrinkage of the drying concrete, small cracks and voids will appear in the construction and cold joints, through which water can penetrate. In contact with water the green bentonite strip will swell approximately 400 % of its original dry volume. The expansive clay mass will seal the cracks and small voids in the joint. The first expansion is delayed to prevent the strip from expanding to soon in contact with rainwater during the installation.

Features of Hydrophilic bentonite strip

Hydrophilic bentonite strip has the following features: 1. The product prepared in concrete construction joint, post-cast seam on the interface of the secondary concrete (was) under the condition of concrete after water expansion can thoroughly clogging aperture. 2. The expansion rate is slow, strong water pressure resistance, suitable for the rainy season and water rich in construction site. 3. The construction method is simple, according to the construction method, can have the effect of the waterproof impermeability. 4. As the inorganic mineral raw material, the main resistance, corrosion resistance, no pollution and so on characteristics.

Installation notes of Hydrophilic bentonite strip

1. Paste the interface should be kept dry. Application of water stop within the aperture and shall not be exposed. Article

2. The water stop and construction joint interface paste to close, stretch along the construction joint direction shall not leave breakpoints, cannot be cut off scum dust, etc. Article

3. The water should fully be concrete packages, package thickness greater than 5 cm. Article

4. The water stop after fixed before pouring the concrete, should avoid to be soaked in water for rain or construction.

5. Storage and transport of water stop, avoid damp and extrusion. 6. Concrete vibratory, should avoid vibration rods

Technical data/ properties of Hydrophilic bentonite strip

Property	Value
Swelling capacity in contact with water	Swells approx. 400% of its original dry volume
Density	Featured Suppliers: