Super early strength concrete water reducing agent

Abstract

The invention belongs to the technical field of concrete additives, and particularly relates to a super early strength concrete water reducing agent. The super early strength concrete water reducing agent is prepared from, by weight, 35-60 parts of a polycarboxylic acid water reducing agent, 1-2.2 parts of glyceryl monostearate, 0.5-1.5 parts of alkyl glycoside, 0.5-2.8 parts of sodium carboxymethylcellulose, 0.3-0.9 part of sodium tripolyphosphate, 0.2-0.8 part of polytetrafluoroethylene and 10-25 parts of water. The super early strength concrete water reducing agent has the superhigh early strength ratio and the high later strength increase speed and is good in adaptability with concrete, beneficial for durability of the concrete and few in slump time loss.

Description

technical field [0001] The invention belongs to the technical field of concrete admixtures, in particular to a super early strength concrete water reducer. Background technique [0002] Polycarboxylate superplasticizer is the third-generation superplasticizer with excellent comprehensive performance. It has been produced and applied in Japan, Germany, the United States and other developed countries since the late 1980s. It has many advantages such as high water reducing rate, small loss of concrete slump over time, low dosage, great contribution to concrete strength, and good environmental protection. From high-speed railways to urban commercial concrete mixing stations, many domestic application companies have begun to choose polymer Carboxylic acid superplasticizer is an essential fifth component of concrete. As a new type of material, concrete water reducer can not only improve the level of construction technology, improve the performance of concrete, but also save a lot...

AI Technical Summary

Problems solved by technology

However, the unified early-strength admixture has the disadvantages of poor compatibility with superplasticizers, which is not conducive to engineering control, difficult construction, poor durability, etc.; the existing super early-strength polycarboxylate superplasticizer production process has esterification and transesterification Difficulty, difficulty in obtaining raw materials for macromolecular synthetic monomers, complex process and high cost, insufficient water reduction rate, etc.