Abstract
This study was performed to investigate the mix proportion of high strength and self-compacting concrete, which mixproportion strength was more than 80N/mm2, and application of the concrete for the underground diaphragm wall. It was confirmed that the concrete, which was consisted of low-heat portland cement, air entraining high-range water reducing agent, would be expected to have long-term development of strength because of very low rise of temperature and could be easily filled into the structure by tremie method And it was also confirmed that the strength of the concrete after filling into the diaphragm wall was the same as the strength of the specimens, which were sampled before filling and cured by standard curing condition.
