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目前,国内外研究和应用的高效减水剂是含单环、多环或杂环芳烃的聚合物电解质,其分子量在1000～20000的范围。然而性能最佳的两种是萘磺酸盐甲醛缩聚物和磺化三聚氰胺甲醛树脂。由于高效减水剂对水泥浆的分散作用或抗凝聚作用,使水泥混凝土的流动性大大提高。为了研究高效减水剂对水泥悬浮体的分散作用及其作用机理,我们用沉降分析方法
At present, the superplasticizers researched and applied at home and abroad are polymer electrolytes containing monocyclic, polycyclic or heterocyclic aromatic hydrocarbons, and have a molecular weight in the range of 1,000 to 20,000. However, the two best performances are naphthalene sulfonate formaldehyde condensation polymer and sulfonated melamine formaldehyde resin. Due to the dispersion or anti-agglomeration effect of superplasticizer on cement slurry, the fluidity of cement concrete is greatly improved. In order to study the dispersion and action mechanism of high-efficiency water-reducing agent on cement suspension, we used the settlement analysis method.