Concrete viscosity reducer

Abstract

The invention discloses a concrete viscosity reducer. The concrete viscosity reducer is prepared from components in parts by weight as follows: 15-22 parts of methacrylamide, 3-8 parts of sodium thiosulfate, 1-5 parts of a stabilizer, 2-3 parts of a retarder, 4-8 parts of maleic anhydride, 0.5-1 part of sodium dodecyl benzene sulfonate, 5-8 parts of bentonite and 10-12 parts of water. The concreteviscosity reducer has low admixing amount, good compatibility and stability.

Description

Technical field [0001] The invention relates to a viscosity reducer, in particular to a concrete viscosity reducer. Background technique [0002] In recent years, with the development of large-scale and high-rise building structures in my country, the requirements for concrete strength have become higher and higher. In order to increase the strength of concrete, high-strength cement is generally used, the amount of cementing material is increased, and the water-binder ratio is reduced. However, these measures often lead to an increase in concrete viscosity and a slower flow rate, which is not conducive to pumping and construction. In addition, due to the lack of river sand resources, a large amount of machine-made sand is also used in the preparation of the above-mentioned concrete. The machine-made sand has many edges and corners and poor gradation, which makes the viscosity problem more prominent. Summary of the invention [0003] In view of the above-mentioned problems, the pr...

AI Technical Summary

Problems solved by technology

In order to increase the strength of concrete, high-strength cement is generally used, the amount of cementitious materials is increased, and the water-binder ratio is reduced, but these measures often lead to increased concrete viscosity and slower flow rate, which is not conducive to pumpin