Steel edge waterstop production process

In the production process of steel-edge rubber waterstops, we can first insert the pre-processed galvanized steel strips into the middle of the rubber to vulcanize and form them. The strong bonding force between the two has obvious anti-seepage and water-stopping effects. . The middle rubber body of the buried steel edge waterstop is compressed, stretched, and deformed when the structure deforms, and plays a sealing and waterstop role; the galvanized steel strip has good adhesion to the concrete and is not easy to fall off or loosen. Enable the waterstop to withstand greater pulling force and torsion. During construction, due to the huge vibration force during concrete pouring and difficulty in fixing, ordinary rubber waterstops will shift, pull away, twist, become loose and fall off, resulting in leakage when the water pressure is high. , when using steel-edged rubber waterstops, there will be no new leakage joints between the steel belt and the concrete, or between the steel belt and the rubber. Therefore, the steel-edged rubber waterstop enhances the anti-seepage performance of the structural deformation and plays an important role in quality assurance for the anti-seepage and water-stopping of the entire project. At the same time, it has good self-property after installation and overcomes the problems of the waterstop. Multiple fixing processes are required to make construction and installation more convenient.
The steel edge rubber waterstop is a composite piece composed of general retractable rubber and galvanized steel edges on both sides. This kind of waterstop mainly relies on the rubber section in the middle to be compressed or stretched between the concrete deformation joints to seal and stop water. Generally speaking, the adhesion between concrete and rubber is poor. In conventional construction, and because rubber is a soft elastomer, it is difficult for the concrete to be dug out during pouring. Therefore, when the concrete joints expand, are pulled apart, and twisted, they will Rubber waterstops often loosen and fall off, causing leakage when the water head pressure is high. For joints with large deformation seams, the problem is even more prominent. The use of galvanized steel edge rubber composite waterstop can basically overcome these shortcomings of pure rubber bridge waterstop. Moreover, this composite waterstop also has a dual function, that is, on the one hand, it can extend the path and slow down the water seepage rate; on the other hand, the galvanized steel edge has good adhesion to the concrete, allowing the waterstop to withstand greater tensile force. and torsion, thereby ensuring that the rubber waterstop will not loosen or fall off within the effective deformation range of the concrete, and improve the waterstop effect. Steel edge rubber waterstops use galvanized steel edges; rubber: usually natural rubber, neoprene rubber, EPDM rubber, etc. It is required that the rubber and steel edges can be effectively bonded, and the bonding strength (peel strength) between them should reach 80~10N/2.5mm, so that they will not be pulled off when external conditions change. Usually there are no process holes on the edge of the steel edge. When installing and pouring concrete, the waterstop and the steel edge are wrapped and fixed with thin iron wire using technology to ensure dense pouring and effective and firm adhesion between the galvanized steel sheet and the concrete. This product is mainly used in foundation projects that are integrated with the concrete structure in construction joints and deformation joints when concrete is cast in place, such as underground facilities, tunnel culverts, water aqueducts, dams, liquid storage structures, etc.