| 聚羧酸分子结构对水泥砂浆早强性能的影响 |
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| 引用本文： | 易聪华,黄欣,张智,杨东杰.聚羧酸分子结构对水泥砂浆早强性能的影响[J].华南理工大学学报(自然科学版),2011,39(8):93-98. |
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| 作者姓名： | 易聪华 黄欣 张智 杨东杰 |
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| 作者单位： | 华南理工大学化学与化工学院,广东广州,510640 |
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| 基金项目： | 广东省科技计划项目(2008B010600014) |
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| 摘 要： | 以甲基丙烯酸(MAA)、甲基丙烯磺酸钠(MAS)、甲氧基聚乙二醇甲基丙烯酸酯(PMA45)为共聚单体,以过硫酸铵为引发剂,合成了一系列聚羧酸高效减水剂.通过测定硬化砂浆早期强度以及采用扫描电镜观察早期水泥石形貌,研究了不同原料配比对聚羧酸高效减水剂早强性能的影响.结果表明,聚羧酸高效减水剂早强性能随着PMA45用量的增...
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| 关 键 词： | 聚羧酸 高效减水剂 分子结构 水泥砂浆 早强性能 |
Effects of Molecular Structures of Polycarboxylate on Early-Strength Performance of Cement Mortar |
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| Yi Cong-hua,Huang Xin,Zhang Zhi,Yang Dong-jie.Effects of Molecular Structures of Polycarboxylate on Early-Strength Performance of Cement Mortar[J].Journal of South China University of Technology(Natural Science Edition),2011,39(8):93-98. |
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| Authors: | Yi Cong-hua Huang Xin Zhang Zhi Yang Dong-jie |
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| Institution: | Yi Cong-hua Huang Xin Zhang Zhi Yang Dong-jie(School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China) |
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| Abstract: | A series of polycarboxylate superplasticizers were synthesized with methacrylic acid(MAA),sodium methylacrylamide(MAS) and methoxy polyethylene glycol methacrylate(PMA45) as monomers,and ammonium persulfate(APS) as an initiator.Then,the effects of raw material proportion on the early-strength performance of polycarboxylate superplasticizers were investigated by measuring the early strength of harden mortar and by using a scanning electron microscope to observe the morphology of early cement stone.The result... |
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| Keywords: | polycarboxylate superplasticizer molecular structure cement mortar early-strength performance |
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