具有不同功能单元的聚羧酸系高效减水剂对C₃A-石膏早期水化的影响
Influence of Polycarboxylate Superplasticizers with Different Functional Units on the Early Hydration of C₃A-Gypsum.
作者信息
Hu Kuangyi, Sun Zhenping
机构信息
School of Materials Science and Engineering, Tongji University, Shanghai 200092, China.
Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai 200092, China.
出版信息
Materials (Basel). 2019 Apr 6;12(7):1132. doi: 10.3390/ma12071132.
Influence of polycarboxylate superplasticizers (PCs) with different functional units on the hydration heat and hydration products of C₃A-gypsum was investigated. Three kinds of PCs with different monomers were discussed. It was seen that PCs mainly shortened the induction stage of C₃A-gypsum hydration, and the amount of remaining gypsum was related to the duration of the induction stage. The second heat flow peak of the sample with PCs was higher than that of the blank. Moreover, PC intercalation occurred during the hydration.
研究了具有不同功能单元的聚羧酸系高效减水剂（PCs）对C₃A-石膏水化热和水化产物的影响。讨论了三种具有不同单体的PCs。结果表明，PCs主要缩短了C₃A-石膏水化的诱导期，剩余石膏量与诱导期的持续时间有关。添加PCs的样品的第二个热流峰高于空白样品。此外，水化过程中发生了PC插层。
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