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聚丙烯酰胺对水泥浆体流动度的影响机理研究

XIA Guohui,MAO Yonglin,ZHANG Jiangang,ZHOU Dongliang, YANG Yong, WANG Tao

China Concrete and Cement Products（2023）

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Abstract
研究了聚丙烯酰胺(PAM)对水泥浆体流动度的影响规律,测试了水泥颗粒的粒径分布、水泥浆体的流变参数和水泥颗粒对减水剂的吸附率,分析了PAM影响机理.结果表明:微量的PAM可使水泥浆体的流动度显著下降;PAM促进了水泥浆体絮凝、提升了水泥浆体的黏度是造成水泥浆体流动度不良的主要原因.
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Key words
Polyacrylamide,Poly-carboxylate admixture,Cement paste,Flocculation,Plastic viscosity
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