Introduction of Galvanized Steel Edge Rubber Compound Waterstop

Introduction of Galvanized Steel Edge Rubber Compound Waterstop

The galvanized steel-edged rubber composite waterstop adopts a new method to support the foundation and a large-tonnage jack jacks up the bridge span at one time. In order to facilitate the installation of the support and provide sufficient support capabilities, it is necessary to set a reinforced concrete foundation under the support. Because the foundation of the support is in the river course, the foundation is relatively fragile, the bearing capacity is low and uneven. If the foundation is placed on it, large uneven settlement will occur. In order to reduce the amount of settlement, it is necessary to increase the size of the reinforced concrete foundation and pre-compress the support. This plan has a large amount of work, a longer construction period, low safety and high cost.

Due to the high tensile strength and high elongation of rubber, the galvanized steel edge rubber composite waterstop has been stretched and squeezed when the expansion joints of the concrete change due to thermal expansion and contraction. Pressure. The rubber waterstop has a buried type and an externally attached type. The so-called buried type is a centrally buried waterstop designed with a round hole in the middle, which not only ensures that the waterstop will not be fatally damaged during extrusion and deformation, but also because When the ring is stretched, both sides are stressed without being broken. The design of the waterproof line on both sides of the waterstop is also very effective. The waterproof line ensures the contact area with the concrete for the protrusions and increases the tension between the concrete and prevents the leakage of water from easily bypassing the waterstop and leaking. .

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The galvanized steel edge rubber composite waterstop is a composite piece composed of general stretchable rubber and galvanized steel edges on both sides. This kind of waterstop is mainly compressed or stretched between the concrete deformation joints by the rubber section in the middle, which plays a role of sealing and waterstop. Generally speaking, the adhesion between concrete and rubber is poor. In conventional construction, because rubber is a soft elastic body, it is not easy to dig out the concrete when pouring. Therefore, the concrete joints will expand, pull apart, and twist. The rubber waterstop often loosens and falls off, so that leakage occurs when the head pressure is high. For seams 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 delay the water seepage rate, on the other hand, the galvanized steel edge and concrete have good adhesion, so that the waterstop can withstand greater tension. And torsion, so as to ensure that the rubber waterstop will not loose and fall off within the effective deformation range of the concrete, and improve the waterstop effect.

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