With the development of technology and economy, as well as the improvement of engineering quality, the role of water-reducing agent in concrete is becoming more and more important. Today I will take you to understand the important role of water-reducing agent in the construction industry.
High range water reducing admixture is divided into: (1) lignosulfonates; (2) polycyclic aromatic salts; (3) water-soluble resin sulfonates. Naphthalene superplasticizer, aliphatic superplasticizer, amino superplasticizer, polycarboxylic acid superplasticizer, etc.
The appearance form is divided into liquid and powder.The appearance form is divided into liquid and powder. The solid content of water is generally 20%, 40% (also called mother liquor), 60%, and the solid content of powder is generally 98%. According to the water reducing and enhancing ability of water reducing agent, it is divided into ordinary water reducing agent (also known as plasticizer, water reducing rate is not less than 8%, represented by lignosulfonate), superplasticizer (also known as superplasticizer) Plasticizer, the water reduction rate is not less than 14%, including naphthalene, melamine, sulfamate, aliphatic, etc.) and high-performance water-reducing agent (water reduction rate is not less than 25%, with polycarboxylic acid It is represented by water reducing agent), and is divided into early-strength type, standard type and retarder.
After adding the concrete mixture, it can disperse the cement particles, which can improve its workability, reduce the unit water consumption, and improve the fluidity of the concrete mixture; or reduce the unit cement consumption and save cement.
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Post time: Aug-02-2021