High-strength high-temperature-resistant flame-retardant concrete viscosity modifier as well as preparation method and application thereof

Abstract

The invention belongs to the field of concrete admixtures and relates to a concrete viscosity modifier and preparation thereof. The concrete viscosity modifier provided by the invention comprises a polymer containing double bonds and a double-bond photocatalyst, wherein the polymer containing double bonds is prepared from the following raw material components in parts by weight: 5-50 parts of bisphenol compounds, 5-100 parts of carboxyl-containing monomers, 5-100 parts of monomers containing sulfonic groups, 1-50 parts of unsaturated monomers, 0.1-10 parts of 1,3-diene monomer, 10-300 parts ofalkali, 100-5000 parts of a solvent and 0.1-20 parts of a catalyst, wherein the total addition amount of the carboxyl-containing monomers and the monomers containing sulfonic groups is not less than50 parts by weight. The prepared concrete viscosity modifier has the advantages of being soluble, easy to construct and excellent in cohesiveness; and when the concrete viscosity modifier is added into cement and other materials to prepare concrete, the obtained concrete has high strength and aging resistance.

Description

technical field [0001] The invention belongs to the field of concrete admixtures, and in particular relates to a high-strength, high-temperature-resistant, flame-retardant concrete viscosity modifier and a preparation method thereof. Background technique [0002] With the country's increasing emphasis on the environment and building quality, how to further optimize and improve the comprehensive performance of concrete (such as construction flexibility, mechanical strength, flame retardancy, etc.) under the premise of green environmental protection has become the focus of attention. Since the end of the 20th century, people have been looking for an effective way to improve the comprehensive performance of concrete. At present, the effective way to improve the performance of concrete is mainly to improve some of its performance by introducing water reducing agent and reducing the amount of water; however, a lot of practice has proved that the addition of a single water reducin...

AI Technical Summary

Problems solved by technology

At present, the effective way to improve the performance of concrete is mainly through the introduction of water-reducing agents to improve some of its performance by reducing the amount of water; however, a lot of practice has proved that in the actual construction process, the addition of a single water-reducing agent is often not well coordinated. The comprehensive excellent performance of concrete is exerted, but the workability, bleeding and wrapping performance of concrete are still not good, which leads to many defects in concrete during construction, such as: honeycomb, pockmarked surface, cavity, exposed reinforcement, etc., and then Seriously affect the comprehensive performance of concrete, making it difficult to exert good mechanical strength, etc., and finally affect the overall strength of the building; It is easy to decompose and support combustion in the presence of an open flame, which makes it a potential dangerous factor after being used in construction

Images