High performance concrete impervious water proofing agent for building

Abstract

The present invention relates to a high-performance concrete impervious water-proofing agent. It is formed from naphthalene series high-effective water-reducing agent, expanding agent, sodium dodecyl benzene sulfonate, organic silicon and grammite. The application of said invention can greatly improve and raise impervious property of concrete, its anticracking property and chemical corrosion resistance, and can greatly raise the concrete early, medium and after compression strength, it can be extensively used in underground engineering and marine engineering.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a high-performance concrete anti-seepage and water-repellent agent for building. Background technique [0002] Cracking and leakage of buildings and various structures has almost become a major quality problem in today's concrete structures. There is a saying that "the sky is cloudy and it rains all night", which expresses people's helplessness about house leakage. [0003] Cement concrete usually has a large amount of water, and after hardening and drying, a large number of connected capillary pores are formed inside the cement stone and at the aggregate-slurry interface. In addition, the volume shrinks during the drying process, which is prone to cracking after being restrained, which is even more aggravated. its leakage hazard. [0004] For a long time, people have adopted various measures to solve the anti-leakage problem of concrete, such as increasin...

AI Technical Summary

Problems solved by technology

[0004] For a long time, people have adopted various measures to solve the anti-leakage problem of concrete, such as increasing the amount of cement, improving aggregate gradation, etc., but the effect is limited, and the cost increases, and the crack problem still cannot be solved

In the past few decades, people have also adopted measures to improve the impermeability of concrete by adding admixtures such as triethanolamine and ferric chloride, but none of them can solve the cracking problem of concrete, and improper use of triethanolamine can easily cause serious damage to concrete performance. The chemical iron has a corrosive effect on the internal steel bars and has been restricted in use