Main classification of water reducing agents


The appearance is divided into Water and powder. The solid content of Water is generally 20%, 40% (also known as mother liquor), and 60%, while the factual content of powder is generally 98%. According to the Water reducing and enhancing capabilities of Water reducing agents, they are divided into ordinary Water reducing agents (also known as plasticizers, with a water-reducing rate of not less than 8%, represented by lignosulfonate salts), high-efficiency Water reducing agents (also known as superplasticizers, with a water reducing rate of not less than 14%, including naphthalene series, melamine series, amino sulfonate series, aliphatic series, etc.), and high-performance Water reducing agents (with a water reducing rate of not less than 25%, represented by polycarboxylic acid series water reducing agents), and are further divided into early strength types Standard type and retarded type. According to the composition materials, it is divided into (1) lignosulfonate salts; (2) Polycyclic aromatic salts; (3) Water soluble resin sulfonates. Naphthalene series high-performance water-reducing agent, aliphatic high-performance water-reducing agent, amino high-performance water-reducing agent, polycarboxylic acid high-performance water-reducing agent, etc. According to chemical composition, it is generally divided into lignin sulfonate type water reducing agent, naphthalene type high-efficiency water reducing agent, melamine type high-efficiency water reducing agent, amino sulfonate type high-efficiency water reducing agent, fatty acid type high-efficiency water reducing agent, and polycarboxylate type high-efficiency water reducing agent. Lignosulfonate is a by-product of sulfite pulping. [4] Lignosulfonate has a molecular weight of 2000 to 5000 and a sulfonate base of 1.25 to 2.5 mcq/g. It is soluble in various pH aqueous solutions, insoluble in organic solvents, and has a phenolic hydroxyl group as its functional group. [5] Its raw material is lignin, which is generally extracted from coniferous wood. Lignin is polymerized from three lignin monomers: paragenol, coniferous, and mustard alcohol, including calcium lignosulfonate, sodium lignosulfonate, and magnesium lignosulfonate. Lignosulfonate water reducer is a common type of water reducer, belonging to anionic surfactants, which can be used directly or as one of the raw materials for composite additives; due to its low price, it is still widely used. It can improve workability, fluidity, and strength when used in mortar, with a water reduction rate of 8% to 10%. If you are looking for high quality, high purity and cost-effective water reducing agent, or if you require the latest price of water reducing agent, please feel free to email contact mis-asia.

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