Clay inhibitor capable of improving clay resistance of polycarboxylate superplasticizer and use method of clay inhibitor

Abstract

The invention provides a clay inhibitor capable of improving clay resistance of a polycarboxylate superplasticizer. The inhibitor comprises a component A and a component B in a mass ratio being (1.5-3.0):1; the component A is pure slaked lime; the component B is prepared from raw materials in percentage by mass as follows: 5%-25% of a micromolecular polymer, 5%-25% of an organic cationic polymer, 0.02%-0.1% of a macromolecular polymer and 55%-85% of water. The invention further provides a use method of the clay inhibitor. Under the synergistic effect of a pretreatment modification function of the component A on clay in a cement-based material and a shielding function of the component B on the adoption of the superplasticizer by the clay, the inhibitor effectively reduces the adoption effect of the clay on the polycarboxylate superplasticizer, that is, the synergistic effect effectively inhibits the adverse effect of the clay on the polycarboxylate superplasticizer, and the working performance of the cement-based material is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of preparation of functional admixtures, and in particular relates to a clay inhibitor capable of improving the anti-mud performance of a polycarboxylate water reducer and a use method thereof. Background technique [0002] With the rapid development of modern concrete technology and the continuous emergence of major projects, the proportion of engineering applications of polycarboxylate-based water reducers is increasing. At present, its application has surpassed that of naphthalene-based high-efficiency water-reducers, and it has become an especially high-performance water reducer for concrete. It is an indispensable component in high-strength concrete and has broad development and application prospects. However, with the huge amount of infrastructure projects in recent years, the mining of sand and gravel aggregates is very serious, resulting in an increasing shortage of high-quality sand and gravel aggre...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of clay inhibitor with improved anti-mud performance of polycarboxylate water reducer and its use method for the above-mentioned problems and the deficiencies of the prior art. The technical problem to be solved is: for high mud content According to the present invention, the dispersibility and dispersion retention performance of the polycarboxylate water reducer to cement-based materials can be improved, and at the same time, there is no adverse effect on other properties of cement-based materials

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