抄録
Bentonite grain in slurry, which is used for the construction of cast-in-place concrete piles, is attached on the surface of reinforcing bars by an electrochemical reaction of iron ions released from the bars. From previous studies, we found out that a dispersing agent is an efficient way to avoid adhesion. On the downside, when the amount of the dispersing agent is large, the aggregate in the fresh concrete may separate. In this paper, the properties such as bond strength and execution of pile were discussed.
