Research on Self-Desiccation at early Age of High Performance Concrete with Polypropylene Fiber
This paper focuses on the impact which polypropylene fiber (PF) has on the self-desiccation effect at early age of high performance concrete (HPC). The experimental results indicate that PF has little influence on the Internal Relative Humidity (IRH) caused by self-desiccation effect of concrete, but can reduce early aged self-desiccation shrinkage of concrete. With the PF dosage increasing, the values of early self-desiccation shrinkage of HPC decrease first and then increase. In the experimental conditions, the value of self-desiccation shrinkage of concrete with 0.6Kg/m3 PF is the lowest one.
Hui Li, Yan Feng Liu, Ming Guo, Rui Zhang and Jing Du
W. W. Yu et al., "Research on Self-Desiccation at early Age of High Performance Concrete with Polypropylene Fiber", Advanced Materials Research, Vols. 374-377, pp. 1827-1830, 2012