Anti-mud agent for water reducing agent and method for preparing anti-mud agent

Abstract

The invention discloses an anti-mud agent for water reducing agents and a method for preparing the anti-mud agent. The anti-mud agent comprises, by weight, 5-15 parts of coagulation delaying complex components, 5-10 parts of early strength components, 5-10 parts of clay lattice insertion layer changing components and 39-56 parts of clay adsorption and dilution components. The clay adsorption components are sodium polyaspartate and poly-succinimide mixtures, and a weight ratio of sodium polyaspartate to poly-succinimide is 4 / 1. The anti-mud agent and the method have the advantages that excellent effects can be realized by the anti-mud agent for gravel with a high mud content, and the anti-mud agent is low in dosage and cost and free of adverse impact on mechanical properties and the durability of concrete; the method only includes uniformly mixing the various components with one another to prepare the anti-mud agent, processes are simple, the sodium polyaspartate and the poly-succinimide are amino acid condensation products, influence on environments can be prevented in production and service procedures, and accordingly the anti-mud agent is an environment-friendly product.

Description

technical field [0001] The invention relates to the technical field of concrete additives, in particular to a water reducer and anti-mud agent and a preparation method thereof. Background technique [0002] As an important component of concrete, concrete admixture plays an important role in the process of concrete mixing. In particular, concrete water reducers have brought great leaps in the workability, mechanical properties, and durability of concrete. However, due to the massive development of sand and gravel raw materials used in modern concrete, the reserves of good-quality sand and gravel have become less and less. Usually sand The clay content in the stone is high, and the particle gradation is poor, resulting in a serious impact on the properties of concrete. Especially if the mud content is too high, the water-reducing performance of the water-reducing agent in the concrete will be reduced, or even fail, resulting in a great reduction in the initial slump and slump...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the impact of mud content on concrete superplasticizers, modern times directly increase the dosage of superplasticizers, but the increase in the dosage of superplasticizers will directly lead to an increase in the cost of concrete. In a certain range, if the dosage is too large, it will often lead to serious problems such as bleeding of concrete and poor workability; in the current construction process, sand with high mud content is usually washed in advance, but the cost of sand washing is High, polluting the environment, causing the fine particles of sand to be easily washed away, and the particle gradation of sand is seriously affected; the cost of anti-mud agents on the market is relatively high, and the impact of mud content on the mechanical properties and durability of concrete, Difficult to solve

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