Concrete surface anti-carbonization curing agent, preparation method and application thereof

Abstract

The invention provides a concrete surface anti-carbonization curing agent, a preparation method and application thereof. The concrete surface anti-carbonization curing agent comprises the following raw materials in parts by weight: 150 to 230 parts of alpha-methacrylic acid, 190 to 240 parts of sodium thiocyanate, 70 to 90 parts of acrylic emulsion, 2 to 4 parts of 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, 170 to 190 parts of nano silicon dioxide, 35 to 45 parts of nano montmorillonite powder, 1 to 3 parts of hydroxypropyl methyl cellulose, 1 to 3 parts of industrial ethanol and 195 to 206 parts of water. According to the invention, after the curing agent is sprayed on the surface of concrete, a thin compact nano-film can be quickly formed on the surface, so that the evaporation speed of water on the surface of the concrete can be remarkably reduced in a dry and windy severe environment; and the curing agent contains the anti-carbonization component and the permeation component, so that under the synergistic effect of the anti-carbonization component and the permeation component, the curing agent can effectively act on the concrete surface, and the carbonization depth of the concrete surface is obviously reduced.

Description

technical field [0001] The invention relates to the technical field of maintenance of building materials, in particular to a concrete surface anti-carbonization maintenance agent and its preparation method and application. Background technique [0002] After the concrete is poured, if the climate is hot and the air is dry, if the maintenance is not carried out in time, the moisture in the concrete will evaporate too quickly, forming a dehydration phenomenon, which will make the cement particles that have formed a gel body unable to fully hydrate and cannot be transformed into stable crystals. Lack of sufficient cohesion, resulting in flaking or powdering off the concrete surface. In addition, when the concrete does not have sufficient strength, the premature evaporation of water will also cause large shrinkage deformation and dry shrinkage cracks. Therefore, the maintenance of the initial stage after concrete pouring is very important. The concrete should be cured immediate...

AI Technical Summary

Problems solved by technology

[0005] Ordinary concrete surface curing agents have single ingredients, mainly for moisturizing and curing the concrete surface, and have disadvantages such as single curing effect, low curing agent curing efficiency, and poor surface anti-carbonation effect. Therefore, it is urgent to develop a curing and anti-carbonation performance Concrete surface curing agent, this new type of concrete surface anti-carbonation curing agent can improve the durability and performance of building materials, and provide favorable conditions for the building materials industry to increase market competitiveness

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