Autogenous curing agent for cement-based material and preparation method thereof

Abstract

The invention provides an autogenous curing agent for a cement-based material and a preparation method thereof. The cement-based material just needs to be simply covered without later watering conservation after being poured. The autogenous curing agent for the cement-based material comprises the components in weight percent of 5-50% of super absorbent resin, and 50-95% of inorganic admixture, wherein the inorganic admixture is one or more of coal ash, slag powder, silicon ash, metakaolin, rice hull ash, steel slag powder, zeolite powder, bentonite and attapulgite. The preparation method of the autogenous curing agent comprises the steps of 1) weighing materials according to the formula ratio; 2) baking each material of the inorganic admixture and then cooling; 3) adding to a blender, firstly, slowly stirring, rapidly stirring, stagnating, then rapidly stirring and slowly stirring orderly; 4) heating the inorganic admixture, and 5) starting the blender, and slowly adding the super absorbent resin and mixed inorganic admixture when slowly stirring, rapidly stirring, stagnating, rapidly stirring, and then slowing stirring orderly, taking out the mixture and placing in a dry sealed container.

Description

technical field [0001] The invention relates to a self-curing agent for cement-based materials and a preparation method. After the cement-based material is poured, it only needs to be simply covered without later watering and maintenance, so that the cement-based material does not need additional water or any external maintenance after pouring , and can achieve conservation effect. Background technique [0002] In recent years, high-strength and high-performance cement-based materials have flourished. However, due to improper maintenance, cement-based materials shrink or even crack seriously, which even affects the durability of cement-based materials and reduces the service life of buildings. As we all know, the curing of cement-based materials is very necessary. Efficient self-curing can reduce the cracking of cement-based materials, promote the hydration of cement and the secondary hydration of inorganic admixtures, and improve the strength and durability of cement-ba...

AI Technical Summary

Problems solved by technology

[0003] However, traditional maintenance not only consumes huge manpower, material resources and financial resources, but also the maintenance effect is often difficult to guarantee

In the existing domestic maintenance construction methods, there are still inconveniences and defects

In order to solve this problem, experts in the industry have conducted active exploration and research for a long time, but no effective adaptation method has been found.

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