A kind of concrete silt inhibitor based on clay mineral flocculation and preparation method thereof

Abstract

The invention provides a concrete mud retarder based on clay mineral flocculation and a preparation method thereof. The concrete mud retarder comprises a main ingredient and auxiliary ingredients, wherein the main ingredient is multiple-ion complex salt flocculant, and the auxiliary ingredients comprise a stabilizer, a corrosion inhibitor and a reinforcing agent. The concrete mud retarder can eliminate the sour corrosion and side effects on influencing the early strength of concrete of the flocculant. The preparation method comprises two steps of flocculant synthesis and mud retarder compounding. The mud retarder ingredients are matched and reasonable, the flowability and the mechanical performance indexes of concrete are comprehensively considered, the performance cost ratio is high, and the dosage of a water reducer and the preparation cost of concrete are effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of building materials, and relates to water reducing agent technology and the use of machine-made sandstone, in particular to a concrete mud inhibitor based on clay mineral flocculation and a preparation method thereof. Background technique [0002] With the rapid development of my country's economy and society, the scale of construction has expanded rapidly, leading to a sharp increase in the demand for construction sand and increasing pressure on resources and the environment. Based on the ratio of cement and sand in concrete, which is 1:5, the cement output in my country was more than 2.41 billion tons in 2013, and the theoretical consumption of sand and stone should be more than 12 billion tons. Due to years of large-scale consumption, my country's non-renewable natural sand and gravel resources are on the verge of exhaustion. In order to protect the ecological environment, many local governments have al...

AI Technical Summary

Problems solved by technology

[0003] Most of the studies on the effect of mud powder content on the performance of concrete in the MB value of machine-made sand concentrate on the effect of mud powder content on the performance of concrete. It is believed that mud powder is generally finer, which increases the specific surface area of ​​the aggregate. The strength, drying shrinkage, impermeability, frost resistance and wear resistance of concrete will all be adversely affected, but there are few reports on the dynamic relationship between the MB value of machine-made sand and the limit index of stone powder and its practical application in concrete

If the machine-made sandstone is washed and desilted according to the national standard, although the quality of the aggregate can be improved, it consumes limestone powder resources and water resources that can increase the compactness and strength of concrete, and the discharged sewage and sediment pollute the environment