Contact person: Lisa Kang

lisa(at)chinarongwei.net

We can produce various specifications of Rubber waterstop bar according to the customers requirements.

Description of Rubber waterstop bar

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 meters. 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 Rubber waterstop bar

Rubber waterstop bar 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.

Advantages of Rubber waterstop bar:

1. It is permanently active system, which swells up to approximately (150%~300%).

2. It is an ecological and user friendly system: simple and quick to install by means of gun nailing.

3. The composition of bentonite water-stop prevents premature swelling.

4. The water-stop has a proven track record in water treatment plants, water purification plants, water tanks, metro works and other concrete structures subject to high water pressure