A viscosity-reducing water-reducing agent and its preparation method

By introducing functional monomers and crosslinking monomers into the polymer main agent, combined with viscosity modifiers and slow-release air-entraining agents, the problem of high concrete viscosity is solved, achieving a balance between high fluidity and high strength, making it suitable for industrial production.

CN122079529APending Publication Date: 2026-05-26HANGZHOU WOOD QUALITY MFG TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HANGZHOU WOOD QUALITY MFG TECH CO LTD
Filing Date
2025-12-30
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing technologies struggle to significantly reduce concrete viscosity without sacrificing dispersibility, slump retention, and concrete strength, leading to problems such as high pumping resistance, difficulty filling corners of formwork, and difficulty in removing air bubbles.

Method used

A viscosity-reducing water-reducing agent is used. By introducing functional monomers and trace amounts of crosslinking functional monomers into the polymer main agent, combined with a unique viscosity modifier and a slow-release air-entraining agent, a suitable three-dimensional network structure and microbubbles are formed, which synergistically reduce the viscosity of the system.

Benefits of technology

It significantly reduces concrete viscosity, improves fluidity and pumpability, while maintaining high strength and durability, making it suitable for industrial production.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure SMS_1
    Figure SMS_1
Patent Text Reader

Abstract

This invention discloses a viscosity-reducing water-reducing agent and its preparation method, belonging to the technical field of concrete admixtures. The water-reducing agent is a compound of polymer main agent A, viscosity modifier B, and slow-release air-entraining agent C. Polymer main agent A is copolymerized from unsaturated polyether macromonomers, unsaturated carboxylic acid monomers, functional monomers (containing sulfonic acid groups, phosphate ester groups, etc.), and trace amounts of crosslinking functional monomers, giving it a molecular structure basis for high dispersion and viscosity reduction. Viscosity modifier B is a complex of sugar alcohol and organophosphonate, reducing the system viscosity through both physical and chemical effects. Slow-release air-entraining agent C can stably introduce uniform microbubbles, improving flowability. Through the synergistic effect of its components, this invention can significantly reduce the viscosity of high-strength, high-performance concrete, improving pumping and construction performance, while not affecting its dispersibility, slump retention, and final strength. The overall preparation method is simple and suitable for industrial production.
Need to check novelty before this filing date? Find Prior Art