Steel-edged rubber waterstops utilize a non-uniform thickness cross-section, divided into a strength zone and a waterproof zone, ensuring even and rational stress distribution. The steel plate of the waterstop features additional installation holes for connection with reinforcing bars, providing a secure and stable fixation. The expansion joint walls are flat, maximizing the contact surface between the waterstop and the formwork during construction, preventing displacement. The galvanized steel plate adheres well to the concrete, enhancing waterproofing performance. This product, made from galvanized steel, is a composite steel-edged rubber waterstop that largely overcomes the shortcomings of pure rubber bridge-type waterstops. Moreover, this composite waterstop has a dual function: on the one hand, it extends the seepage path and slows down the rate of water infiltration; on the other hand, the galvanized steel edge has excellent adhesion to concrete, allowing the waterstop to withstand greater tensile and torsional forces. This ensures that the rubber waterstop will not loosen or detach within the effective deformation range of the concrete, thus improving the water-stopping effect.
Our company produces high-quality embedded steel-edged waterstops, a waterproof product composed of galvanized steel strips and natural rubber raw materials. The main rubber material is natural rubber with excellent aging resistance and various anti-aging agents, possessing strong self-adhesion; it does not flow at high summer temperatures and does not become brittle at low winter temperatures; it also has excellent water resistance, acid and alkali resistance, and aging resistance; it has a long service life; the product itself is non-toxic and environmentally friendly. During the production process, we first insert pre-treated galvanized steel strips into the middle of the rubber and vulcanize them. The strong adhesion between the two results in a significant seepage-proofing and water-stopping effect. The central rubber body of the embedded steel-edged waterstop is compressed, stretched, and deformed during structural deformation, thus achieving a sealing and water-stopping function. The galvanized steel strip has excellent adhesion to concrete, preventing detachment and loosening, allowing the waterstop to withstand significant tensile and torsional forces. During construction, the immense vibrations and difficulty in securing ordinary rubber waterstops during concrete pouring can cause displacement, tearing, and twisting, leading to loosening and detachment, and ultimately leakage under high water pressure. However, with steel-edged rubber waterstops, no new leakage joints are created between the steel strip and the concrete, or between the steel strip and the rubber.
Therefore, the steel-edged rubber waterstop enhances the seepage prevention performance under structural deformation, playing a crucial role in ensuring the quality of seepage prevention and water-stopping for the entire project. Furthermore, its excellent self-fixation after installation overcomes the need for multiple fixing steps required for traditional waterstops, making construction and installation more convenient. This product is mainly used in foundation engineering projects where concrete is cast in place and placed within construction joints and expansion joints to become an integral part of the concrete structure, such as underground facilities, tunnels and culverts, aqueducts, dams, and liquid storage structures.