Water-reducing and anti-mud agent and preparation method thereof

Abstract

The invention discloses a water-reducing and anti-mud agent and a preparation method thereof. The anti-mud agent comprises the following raw materials in parts by weight: 5-15 parts of retarding complex components; 5-10 parts of early-strength components; clay The lattice intercalation change component is 5-10 parts; the clay adsorption and dilution component is 39-56 parts, of which the clay adsorption component is a mixture of polyaspartate sodium and polysuccinimide, polyaspartate sodium and polysuccinimide The weight ratio of polysuccinimide is 4 / 1, which has a good effect on sand and gravel with high mud content, and the dosage is low, the cost is low, and it will not have adverse effects on the mechanical properties and durability of concrete. impact; the method only needs to mix the various components uniformly to complete the preparation, the process is simple, and the polyaspartate sodium and polysuccinimide used are amino acid condensates, during production and use Will not affect the environment, is a green product.

Description

Technical field [0001] The invention relates to the technical field of concrete additives, in particular to a water reducing and mud resistant agent and a preparation method thereof. Background technique [0002] As an important component of concrete, concrete admixtures play an important role in the process of concrete mixing. In particular, the concrete water-reducing agent has brought a huge leap in the workability, mechanical properties, and durability of concrete. However, due to the large-scale development of sand and gravel raw materials used in modern concrete, the reserves of good quality sand and gravel are becoming less and less, usually sand The high mud content in the stone and the poor particle gradation result in a serious impact on the properties of the concrete. Especially if the mud content is too high, it will reduce the water-reducing performance of the water-reducing agent in the concrete, or even fail, resulting in a great reduction in the initial slump and...

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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 concrete bleeding 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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