A kind of super gel material based on wet grinding process and its preparation method and application

Abstract

The invention provides a super-gelled material based on a wet grinding process and its preparation method and application. The super-gelled material based on a wet-milled process consists of 28% to 60% cement, 1% to 3% Surface modifying agent, 0.1-0.2% stabilizer and 37%-70% water are prepared through wet grinding process. The super-cemented material based on the wet grinding process of the present invention uses ordinary Portland cement as the main raw material, and is processed through the wet grinding process, and in the wet grinding process, a surface modifier and a stabilizer are added to obtain a median particle size of 2-5μm super-cemented material, because after the wet grinding process, the whole system is in a "pre-hydration" state, and due to the finer particle size, the super-cemented material of the present invention has higher hydration than the original cement degree and extremely high activity, when part of the cement is replaced, the early strength can be significantly improved, and the gradation can be optimized, so that the later strength can also be improved to a certain extent. Among them, the 12h strength increase ratio can reach 142%.

Description

technical field [0001] The invention relates to the technical field of gelling materials, in particular to a super-gelling material based on a wet grinding process and its preparation method and application. Background technique [0002] Concrete generally requires good construction performance. If no water reducing agent is added, the water ash is relatively large, which is generally greater than the water required for complete hydration of cement. However, with the hydration of cement and the continuous evaporation of free water, the concrete will There are still some unhydrated cement particles. If high-efficiency water reducer is added, the water-cement ratio of concrete will be greatly reduced, the degree of hydration of cement will be reduced, and the hydration will be even more insufficient. At present, the fineness of ordinary cement in my country is generally relatively large, and its specific surface area is more than 300m 2 / kg or so, the 28d hydration degree is ...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention aims to propose a super cementitious material based on wet grinding process to solve the problems of high energy consumption and low effective utilization rate of existing cement

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