Bleeding Control for Improving the Durability of Concrete Structures
By S. Sogo, Y. Kato, K. Fukudome, H. Jinnai and Y. Nakata
Concrete Journal, Vol.55, No.11, Nov. 2017
- Synopsis
- In recent years, the performance deterioration of concrete structures due to bleeding has been pointed out. This is considered to be due to the fact that excessive bleeding has an adverse influence on the mechanical performance and durability of the concrete structure, and finishing becomes difficult when the bleeding is too small. However, the influence of bleeding on the properties of concrete can not be quantitatively grasped. Also, because the bleeding test method is not universal, it is impossible to properly control bleeding. Based on these circumstances, we conducted committee activities to ensure the performance of concrete structures through proper bleeding control. This report summarizes the results of the activities of this committee.
- Keywords:
- bleeding, free water, constrained water, bleeding control, simple test method
