A water-based permeable crystalline concrete surface repair reinforcement material and its preparation method and application

Abstract

The invention discloses a water-based permeable crystalline concrete surface repair reinforcing material and a preparation method and application thereof. The material comprises 48-60 parts of lithium silicate, 20-28 parts of potassium silicate, 24-30 parts of sodium silicate, organic 2-10 parts of silicon, 0.5-2 parts of coagulant, 0.8-1.8 parts of waterproofing agent, 0.1-0.25 parts of surfactant, 0.2-1 part of reaction retarder, 0.1-0.24 part of anti-freezing agent, 0.6 part of fluorosilicate ~1.2 parts, defoamer 0.1~0.2 parts, multifunctional auxiliary 0.08~0.16 parts, early strength agent 0.5~2 parts, water 95~115 parts. The water-based permeable crystalline concrete surface repair reinforcing material of the invention has the characteristics of rapid increase in strength, obvious repair effect on concrete and mortar, can repair and heal cracks and small cracks, thus can improve the water permeability resistance of concrete, and has good durability, Long life, simple preparation and convenient construction.

Description

technical field [0001] The invention relates to building materials for concrete, in particular to a water-based permeable crystalline concrete surface repair reinforcement material and a preparation method and application thereof. Background technique [0002] Compared with the concrete interior, the surface concrete is at a disadvantage during the preparation process and after forming. In the process of concrete preparation, the "wall effect" of the formwork-concrete interface and the bleeding of the upper surface of the concrete cause local high sand ratio, high lime-sand ratio and local high water-cement ratio, and the release agent on the formwork often makes the concrete surface Cement hydration is hindered. When the concrete is in a dry environment and the curing conditions are insufficient, the unfavorable conditions such as insufficient cement hydration caused by insufficient curing due to surface water loss cause the surface density and strength of the concrete to ...

AI Technical Summary

Problems solved by technology

Such as CN105819894A, CN101407428A, CN105218152A, etc., the main technical principle of this type of single-component material is that the main component silicate penetrates into the capillary channels of cement mortar or concrete, and the product Ca(OH) in the cement hydration process 2 reaction to generate water-insoluble calcium silicate hydrate gel (C-S-H), thereby blocking internal pores, closing capillary channels, increasing concrete compactness, thereby achieving the effect of repairing concrete and improving concrete strength, and at the same time has a certain resistance Water permeability, which improves the durability of concrete, but its reaction rate is lower and the curing time is longer

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