How to use water expansion seal ring installation Hello, everyone, Hengshui Jianfeng Xiaobian told my friends about the waterproof materials used in the steel at the bottom of the pile header - how to install the water expansion seal ring. Water expansion ring is more convenient to use, we can choose the corresponding rubber seal ring product according to the size of the diameter of the steel, put on the compression can be. The effect is better, the reliability is greater, the use is more safe, and the water is evenly out of contact with the reinforcing steel from all sides. The water-expanding rubber water stop ring is made of PN-300 type water-swellable rubber, and its performance reaches all indexes of GB/T18173 "Polymer waterproof material" in the third part of a water swelling rubber. It can be round or rectangular. The general specification of the body is the outside diameter D = 40mm and the thickness H = 10mm. The method of use is simple: [When used, as long as the water stop ring is tightly put in the middle of the pull bolt or the slat rod, it can be buried in the cast-in-place concrete and it will have an ideal waterproof effect. 】 Water stop ring application effect In the conventional concrete wall formwork support, the pull bolts or the slat-type tie rods are the main connection pieces connecting the two sets of vertical templates inside and outside, because thousands of pairs of pull-bolts used for fixing the steel formwork are connected Long penetration of the wall, which loses the waterproof function of waterproof concrete itself. In order to solve this problem, the current construction uses a 2-3mm thick, 80mm x 80mm steel sealing plate in the middle of the pull bolt. The defects of this method are: it is difficult to inspect and ensure the quality of the weld, and it is passive waterproof. Once there are cracks in the weld, slag inclusion, burn-through, needle-like pores and other defects, future seepage pathways will be generated and difficult to cure. The rubber water stop piece is made of PN-300 type water-swellable rubber, and its performance reaches all indexes of GB/T18173 "Polymer waterproof material" in the third part of a water swelling rubber. Expanded rubber has low, medium and high levels of volume expansion. The medium and low expansion rubbers have a wide range of applications. Although the expansion rate is not high, due to the relatively small change in the technical parameters such as the tear strength and elongation after expansion, and the shape is kept good, it is suitable for making various shapes. The rubber product can be used in many occasions and there are fewer restrictions on use. The high expansion rate rubber has high requirements for its expansion ratio. Therefore, there are more additives in the rubber, and some of them have high tear strength, but the elongation and compression rebound properties are significantly reduced, and are suitable for stretching the rubber body. Higher requirements, but the initial expansion capacity needs to be larger occasions, such as in the Yan'an East Road double-tunnel in the tunnel grouting hole sealing plug, which uses a high expansion rate of rubber. Rubber seals with a 6-fold expansion rate have been reported abroad for deeper underground projects such as the English-French Channel Tunnel. There are also examples of high expansion rubber seals used in Taiwan's subway projects. If you want to know the price of the product, please provide the required specifications, dimensions, demand, and distance. We will calculate the accurate quotation for you and consult the Manager of the company (same as V). penguin. This information was published in 2018-05-01 I wish you all a happy Labor Day! Everyone should pay attention to safety when traveling.
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