两性型聚羧酸减水剂对早期水泥水化性能的影响

（吉林建筑大学 材料科学与工程学院，吉林 长春  130118）

    摘要：通过前期研究，制备了一种含氨基基团的两性型聚羧酸减水剂（MAALPC），测试了MAALPC对水泥水化速率的影响和抗泥性能。结果表明，MAALPC可推迟水泥水化速率峰值到来的时间，并具有较好的抗泥性能。通过紫外-可见分光光度和红外光谱分析，探讨了其对早期水泥水化的影响。

    关键词：两性型聚羧酸减水剂；水泥水化；抗泥性；水解

    中图分类号：TU528.042+.2        文献标识码：A        文章编号：1001-702X（2018）09

 

Effect of amphoteric polycarboxylate superplasticizer on properties of early cement hydration 

JIANG Jiayun，HAN Ying，ZHANG Shiting 

（School of Material Science and Engineering，Jilin Jianzhu University，Changchun 130118，China）

   Abstract：A type of amphoteric polycarboxylate superplasticizer with amino group（MAALPC） has been prepared in earlier stage. The effect of MAALPC on cement hydration rate and the anti-clay performance were tested. The results show that MAALPC can put off the arrival time of the peak cement hydration rate and have good anti-clay performance. The influence of MAALPC on early cement hydration was discussed by the use of ultraviolet visible spectrophotometer and infrared spectrum. 

    Key words：amphoteric polycarboxylate superplasticizer，cement hydration，performance of anti clay，hydrolysis