Green mud-resistant water reducing agent and preparation method thereof

CN120025494AInactive Publication Date: 2025-05-23CHINA CONSTR EIGHTH BUREAU TESTING TECH CO LTD +1
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Patent Information

Application Number
CN202510493949.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-19
Publication Date
2025-05-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the technical field of concrete admixtures, and particularly discloses a green mud-resistant water reducing agent and a preparation method thereof. The green mud-blocking type water reducing agent provided by the invention is formed by grafting and copolymerizing oxidized acidified starch by adopting a sulfonic acid group monomer, a carboxylic acid group monomer and a steric hindrance monomer; the molar ratio of the sulfonic monomer to the carboxylic monomer to the steric hindrance monomer is 1: (1-3): (0.3-1.3); further, the molar ratio of the sulfonic monomer to the carboxylic monomer to the steric hindrance monomer is 1: (1.5-2.5): (0.5-1); the invention also provides a preparation method of the green mud-resistant water reducing agent. The green mud-blocking type water reducing agent provided by the invention can keep good dispersity and adsorption resistance in concrete with relatively high mud content, and exerts a very good water reducing effect.
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Citation Information

Patent Citations

  • Preparation method of starch-based environment-friendly water reducing agent

    CN112028539A

  • Method for preparing starch-based high-performance water reducing agent and product thereof

    CN112608067A

  • Water-reducing admixtures for cementitious compositions

    US5880182A