Provide Shanghai | pvc waterstops | Material - Jiangsu | pvc waterstops | professional supplier Product Description 
 Tunnel and Underground Engineering of the water stop is a concrete lining seam (construction joints, expansion joints and settlement joint) built-in water stop. Bypass, flange, expansion of rubber and stop slurry treatment with the composition (Figure). Its characteristics: First, in the water stop the drainage channels connected by a lower part of the tunnel drainage system, waterstops lateral seepage pressure; paste in the three seam on both sides of the water stop flange water swelling rubber strips to prevent lateral flow of water seepage along the water stop. The water stop for three sewn in the lining of the tunnel and underground engineering waterproof. 
 Rubber Sealing Strip 
 Products, said 
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 Sealing: 
 This product is widely used in various types of concrete and cast-in-place concrete structure. For example: culverts, dams, reservoirs, inverted siphon, subway, culverts, tunnels, hydropower, thermal power plants and so on. In these works, sometimes not continuous casting, or will cause expansion and contraction of concrete structures due to ground deformation and temperature changes and other reasons, should be left in the pouring deformation joints, construction joints. Seam seepage, leakage through the rubber water-stop approach to solve. It can prevent groundwater (or outside water) leaking into the building structure, but also to prevent water leakage inside the building to the outside world, with favorable results. 
 (2) water-stop design and selection: 
 The choice of 1.1 water stop 
 Should be based on a hierarchy of importance of the structures, deformation joint deformation and water pressure, water-stop, so that (should be) taken into account to determine the work environment, economic factors and other conditions. 
 1.2 water stop material choice according to the following provisions 
 1.2.1 Under normal circumstances, multi-use natural rubber water stop. 
 1.2.2 When the case of weak acid, alkali, corrosive media, should use neoprene waterstops. 
 1.2.3 should be selected when the case of oil medium nitrile rubber water stop. 
 1.2.4 When possible case of mold erosion, should be considered mold rubber water-stop, their grades should reach more than two and two. 
 1.2.5 When the use temperature: -25 ° C ~ 60 ° C, selection of neoprene waterstops. 

 -35 ℃ ~ 60 ° C, use of natural rubber water stop. 

 -40 ° C ~ 60 ° C, use EPDM rubber water-stop. 
 1.3 the waterstops width and thickness of options to consider the following three factors 
 1.3.1 the level of deformation joint and vertical deformation 

 Address: Hong Thai Street, Development Zone, Hengshui City, on the 8th 
 Tel :400-0318-993 
 Fax :0318-7108181 
 Phone: 15603189993 

 13012098388 
 E-mail: 13012098388@sohu.com 
 Web site: http://www.hszs.org 


 Hengshui the Longsheng Engineering Rubber Co., Ltd.