Abstract
More than 20 years has been passed after begining of RCD research, and more than 20 RCD projects have been built. Through those research and practical construction, considerable technical development has been accomplished. However, aggregates for RCD concrete are substantially same as those for conventional dam concrete. Point of view of using lower quality aggregates, several effects of fine material of aggregate are described in this report. Documents are mainly based on the information getting from experiments at Laboratory of Water Resources Development Public Corporation.