Silane impregnation paste used for concrete anticorrosion, and production method thereof

Abstract

The invention discloses a silane impregnation paste used for concrete anticorrosion. The paste comprises, by weight, 35-65 parts of a silane monomer, 1-6 parts of an emulsifier, 0.5-1.5 parts of an emulsification stabilizer, 15-35 parts of deionized water, 1-2 parts of a thickener, 0.05-0.1 part of an antifoaming agent, 1-5 parts of an antiseptic and 1-8 parts of a dispersant. The invention also discloses a production method of the silane impregnation paste for concrete anticorrosion. The production method comprises the following steps: S1, weighing raw materials; S2, preparing a base material; S3, adding ingredients; and S4, carrying cooling treatment. The past can protect concrete from being frosted and being destroyed by seawater and / or deicing salt, greatly reduces the water absorption of capillary tubes, does not affect water vapor permeation, and also has the advantages of large permeation depth, high content of active components, superior alkali resistance, low volatility, water-based environmental protection, good thixotropy, no construction loss, and good adhesion in a surface brush coating.

Description

technical field [0001] The invention relates to the field of concrete anticorrosion ingredients, in particular to a silane impregnated paste for concrete anticorrosion and a preparation method thereof. Background technique [0002] In recent years, my country has been paying great attention to the durability, safety and service life of concrete structures. Most of the erosion damage in and around concrete structures comes from antifreeze salt or seawater salt. The use of silane water repellent for deep impregnation can protect reinforced concrete structures from damage caused by moisture and salt attack for a longer period of time. This technology can effectively improve the durability of the structure and save high maintenance costs. At present, high-performance concrete has been widely used in major projects such as marine engineering, hydraulic engineering, and bridges. However, high-performance concrete has high compactness, and it is difficult for general silane produ...

AI Technical Summary

Problems solved by technology

[0006] At present, high-performance concrete has been widely used in major projects such as marine engineering, hydraulic engineering, and bridges, but high-performance concrete has high compactness. Silane impregnating agents are generally divided into liquid silane and paste silane. Silane products, during the concrete surface impregnation process, its active components are easy to lose on the vertical surface, the contact time between these liquids and the concrete surface is very short, often only a few seconds, it is difficult to achieve effective penetration

Therefore, it is difficult for liquid silane to achieve the ideal penetration effect on high performance concrete