Concrete protection sol

Abstract

The invention relates to a concrete shield sol which mainly consists of sodium silicate, potassium metasilicate and water. The sodium silicate and the potassium metasilicate are ultrafine solid particles with a diameter of one to one hundred nanometer. Proportion between the sodium silicate and the potassium metasilicate is between three point two to one and four point two to one, weight proportion between the gross weight of ultrafine solid particles in the sol and the gross weight of water twenty-six to thirty percent to seventy-four to seventy percent. The invention has the advantages that: the sol made of highly distributed ultrafine solid particles change ions, the main reaction body of in chemical reaction with a hydration product in a concrete pore, into ultrafine solid particles; based on a double insulation protection of a whole isolated layer and a local isolated layer for the structure of the concrete, with an organically combined properties and combined action of a sol anda gelatin, the enterer and corrosion of a corrosion medium can be restrained, an long-term stable effective protection for the concrete structure can be realized, the durability of the concrete structure can be increased, actual service life can be prolonged and the later repair and maintenance can be reduced.

Description

technical field

[0001] The invention relates to a concrete protective material, which belongs to the external coating penetration type product, in particular to a sol-type concrete protective material. Background technique

[0002] At present, there are many methods of coating materials on the outer surface of concrete for the protection of concrete structures. In permeable materials, such as: materials with sodium silicate as the main component, it achieves the purpose of protecting the concrete structure by coating or injecting materials with sodium silicate as the main component at waterproofing and maintenance. However, the material has problems such as fast reaction speed in concrete, poor permeability, and formation of surface membranes that are easy to wear and tear because the main body is sodium monosilicate.

[0003] The improved alkali metal silicate aqueous solution aimed at the above problems, such as: Chinese Invention Patent Disclosure: adopts any two combina...