Effects of Internal Curing by Super Absorbent Polymer on Shrinkage of Concrete
This paper focuses on the shrinkage of concrete, influenced by the different mixing amount of super absorbent polymer—SAP and extra-water. The experiment showed that the SAP-cement-mortar shrinkage is reduced greatly by mixing SAP. Extra-water can improve the function of reducing shrinkage of SAP. When the amount is 20, the shrinkage is lest, account for 57% of blank group’s. The SAP has well effect on the cement mortar shrinkage. Besides, we found that the strength of this group account for 89% of blank group. So the proper amount of SAP and extra-water has poorly influence on the strength of concrete.
Hui Wu, Xiao-Qian Qian, Chong-zhi Li and Fei Li
L. F. Pang et al., "Effects of Internal Curing by Super Absorbent Polymer on Shrinkage of Concrete", Key Engineering Materials, Vol. 477, pp. 200-204, 2011