CB type rubber sealing strip is a hole in the m i ddle of the buried waterstop, mainly used in various concrete structures expansion joints and settlement joints and seismic joints, with concrete anchor tight seal and adapt to the ability of deformation joint deformation etc..
Classification of CB rubber sealing strip:
It can be divided into CB rubber water stop belt and CB plastic water stop belt, two kinds. The commonly used 651, 652 and 653 types of water stopping strips belong to the CB rubber water stop belt.
Specification for type CB rubber water stop:
CB300×8-30, this type means embedded in the m i ddle, there are holes, water hose, the width is 300mm, the thickness is 8mm, and the outer diameter of the m i ddle hole is 30mm.
CB rubber water stop s e l e c tion standard:
In the process of engineering design and construction s e l e c tion, the width and thickness of CB type buried rubber water stop belt shall be determined according to the following conditions:
1, the water pressure is less than 4m, the horizontal and vertical deformation amount is not more than 10mm, the CB type buried rubber water stop width should be less than 200mm, the thickness should not be less than 5mm；
2, the water pressure is 4-8M, the horizontal and vertical deformation amount is not more than 30mm, CB type buried rubber water stop width should be less than 300mm, the thickness should not be less than 6mm；
3, the water pressure is greater than 8m, the horizontal and vertical deformation exceeds 30mm, the CB type of embedded rubber water stop width should be less than 350mm, the thickness should not be less than 8mm；
4, the water pressure is not greater than 8m, the horizontal deformation is not more than 20mm, when there is no vertical deformation, CB type buried rubber water stop width should be less than 200mm, the thickness should not be less than 5mm.
In addition, when the size of the structural section is larger than 500mm, the width of the CB type buried rubber stop belt shall not be less than 300mm, and when the CB type water stop is bent, the turning radius shall not be less than 300mm. In the embedded rubber water stop belt products according to the standards of the waterstop GBl8173.2 - 2000 is the use of rubber with high elasticity and compression deformation, elastic deformation under various loads, and economical in embedded rubber water stop belt sealing to effectively prevent the fastening of building components Water Leakage, seepage, and play a buffer role, can be to ensure the service life of the building project. This product is mainly used for concrete cast in must be permanent deformation joints, such as canals, tunnels, export, dam, aqueduct and so on.