Mud content inhibitor for concrete doped with polycarboxylic acid type water reducer and preparation method and application method of mud content inhibitor

Abstract

The invention relates to the field of concrete additives and specifically relates to a mud content inhibitor for concrete doped with a polycarboxylic acid type water reducer and a preparation method and an application method of the mud content inhibitor. The mud content inhibitor is prepared by the following raw materials of, by weight, 20%-30% of mud dispersion components, 0.5%-5% of mud adsorption components, 0.5%-5% of ion complexation exchange components and the balance water. The preparation method includes firstly, uniformly stirring water and the mud dispersion components, and adding and uniformly stirring the mud adsorption components and the ion complexation exchange components. The application method includes that the usage amount of the mud content inhibitor is 2-5 wt. % of that of the polycarboxylic acid type water reducer. By means of the mud content inhibitor, the liquidity and the slump-retaining performance of the concrete can be increased, the viscosity of the concrete is reduced, the work state of the concrete can be improved, the adsorption quantity of high valence metal ions to the polycarboxylic acid type water reducer can be reduced, and the performance of the concrete doped with the polycarboxylic acid type water reducer is guaranteed.

Description

technical field [0001] The invention relates to the field of concrete additives, in particular to a mud content inhibitor for concrete mixed with a polycarboxylate water reducer and a preparation method and application method thereof. Background technique [0002] Concrete, which is composed of cement, gravel, sand and water, is the most used building material in the world. It is widely used in various constructions due to its cheap and easy access to raw materials, diversity and adaptability in applications, and high economic efficiency. , has become the foundation of modern society. With the continuous development of concrete technology, high-performance concrete prepared with polycarboxylate water reducer has become the development trend of concrete. [0003] Polycarboxylate water reducer belongs to the third generation of concrete water reducer. It is a high-performance water reducer developed after lignin ordinary water reducer and high-efficiency water reducer represe...

AI Technical Summary

Problems solved by technology

For example, the initial serious segregation of concrete by over-mixing is used to ensure the construction state after 0.5h or even 1h. The resulting high air content in the concrete also seriously affects the appearance and later strength of the concrete product, and may also cause problems such as excessively long setting time of the concrete.

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