The water-swellable rubber strip is a product made of water-soluble polymer materials and rubber. It not only has the characteristics of general rubber products, but also has the function of self-swelling in contact with water. The material has the sealing and waterproof function of the elastic joint water-stop material. At present, in some large reservoirs, reservoirs, sewage pools and underground projects, when the distance between the two sides of the joint increases below the elastic recovery rate of the elastic waterproof material, the expansion body has strong rubber, water resistance, acid and alkali resistance.

2. The main application contents are as follows: (1) The water-swelling rubber strip is easy to use and can be combined with various pipe sizes and wall-penetrating pipe bolts for sealing.

(2) When encountering water, the expansion rubber strip can be combined with the rubber waterstop to form the expansion phase rubber waterstop to solve the problem of penetration between the rubber waterstop and the concrete structure.

(3) Some large enterprises can use water-swelling rubber strips to seal the corresponding underground pipes for a long time. The multifunctional sealing tape of intumescent rubber will be tightly wrapped around cracks or leaks and then sealed with concrete or other methods.

3. The working principle of the water-swellable rubber strip The box-making volume saves steel. The steel plate is welded in the middle of the 2 mm thick annular water stop ring to extend the water seepage line and improve the anti-seepage performance.