Special waterproof and leak-stopping daub for deformation joint and expansion joint

Abstract

The invention relates to special waterproof and leak-stopping daub for a deformation joint and an expansion joint. The special waterproof and leak-stopping daub is prepared from butyl rubber, styrene-butadiene rubber, methyl vinyl silicone rubber, octamethylcyclotetrasiloxane, a polyamide thermoplastic elastomer and a tetrafluoroethylene-perfluorovinyl ether copolymer. The special waterproof and leak-stopping daub has high autologous cohesive force, has proprieties of being capable of resisting aging and resisting a humid basal surface, and the like, can be used for forming lasting and stablewater stopping layers in the expansion joint and the deformation joint, and is used for realizing a lasting leak-stopping effect, and problems of secondary leakage and the like cannot occur.

Description

technical field [0001] The invention relates to a cement, in particular to a special waterproof plugging cement for deformation joints and expansion joints. Background technique [0002] At present, due to the failure of the original waterproof system in various construction engineering expansion joints and deformation joints, a large number of ground and underground construction spaces, high-speed rail, subway tunnels, urban pipe galleries, and underpass tunnels have large-scale leakage, which affects the use effect and even occurs. Accident disaster accident. [0003] The current plugging technology mainly uses grouting polyurethane foam glue or stuffing with rigid materials such as plugging spirit to achieve short-term leak-stopping effect: [0004] 1. Due to the hydrolysis of polyurethane foam in a wet state, it will pulverize and lose its cohesiveness, which will lead to re-leakage in a short period of time. Due to the residual polyurethane foam in the cracks, it will ...

AI Technical Summary

Problems solved by technology

[0013] Aiming at the problem of poor plugging effect of existing expansion joints and deformation joints, the present invention provides a special waterproof plugging mastic for deformation joint expansion joints, which has strong self-adhesive force, aging resistance, and moisture-resistant base surface. A long-term and stable water-stop layer is formed in expansion joints and deformation joints to achieve a long-term plugging effect without secondary leakage and other problems