PVC Waterstop Models and Specifications

The PVC waterstop is the same as the rubber waterstop, and it is also divided into the back-mounted type and the middle-buried type. The difference is the material used to produce the waterstop.

The plastic waterstop has strong corrosion resistance and low temperature resistance, high tensile strength, and its service life is 3-5 times longer than that of ordinary rubber waterstops. The processing technology and rubber material are fundamentally different. The original vulcanization process and high-temperature one-time molding are cancelled. The raw material is made of natural materials and does not contain recycled components. During the processing of the rubber-plastic waterstop, the recycled components and other molecules are not. In combination, as long as it contains recycled ingredients, the product will undergo qualitative changes, and the rubber and plastic materials will not be established, so the purity of the waterstop material is high and the quality is easy to guarantee.

The commonly used size of PVC waterstop is 280×6,300×4,300×6,300×8,300×10,350×8,350×10, etc. Useful in all fields. Corresponding to the PVC waterstop, there is another plastic waterstop, the EVA rubber waterstop, which is slightly softer than the PVC waterstop in terms of performance. In terms of specifications, the EVA waterstop is generally It is a back-mounted type, and PVC waterstops are mostly buried in the middle, so you should pay attention when choosing. In use, 651 and 652 waterstops are generally used in small and medium-sized concrete buildings and dams, 654 waterstops are used in large concrete buildings, and back-mounted waterstops are generally used on the water-facing surface of concrete deformation joints.

In use, since the plastic waterstop is relatively soft, it is easy to be scratched by stones, metals, etc., it must be one of the special ones during construction. After cutting, it can be connected with a waterstop hot-melt machine, or the broken part can be ground and connected with chloroprene phenolic glue. When the waterstop is used, try to fix the waterstop as much as possible to avoid the phenomenon of twisting and overturning. When pouring the concrete, be careful not to shift and lose the waterstop effect.

PVC waterstop and EVA waterstop. PVC is the abbreviation of polyvinyl chloride polymer. It is a commonly used plastic and has a wide range of uses. Many plastic handbags and garbage bags in our lives are made of polyvinyl chloride, but because polyvinyl chloride is heated, it will produce trace amounts of Chlorine-containing toxic gas is harmful to the human body, so orange green ethylene is generally not used in food, but non-toxic polyethylene material is used. EVA is a rubber-plastic foaming material of ethylene-vinyl acetate copolymer. It is also commonly used in soil board building materials, daily necessities, containers, etc. in our lives. Poison does not absorb water.

The construction method of PVC waterstop is the same as that of rubber waterstop. When burying, it should be flat with the concrete interface, and the joints should be bonded and tightened. During the burying process, the concrete should be fully vibrated with appropriate force to make the It combines well with concrete for an excellent water stop.

In order to facilitate the installation of the detachable water stop, it is necessary to install the embedded bolts in advance. The embedded bolts should be fixed on the pre-buried steel plate with the steel plate water-stop in advance, and poured and embedded in the concrete. Vibrate carefully to ensure its compactness; the corner of the deformation joint should be made into a circular arc or 45° angle, and the radius of the arc should be determined according to the length of the embedded bolt, and the distance between two adjacent bolt heads will not affect the water stop The installation of the belt and the waterstop splint shall prevail; in order to prevent the bolts from being corroded, butter shall be applied to the bolts or PVC casing shall be added; During the installation of the waterstop, the waterstop should not be pulled hard, and asbestos paper or soft metal sheet liner should be filled between the waterstop and the plywood and the embedded steel plate to ensure tightness.