Ogawa, H.,Kasami Hideo,Ihikura Takeshi,Sukekiyo Mitsuaki ' Development of production Technique on High Quality Recyclable Aggregates [IV] (Part6 Utilization of the by-product recycled concrete powder as mineral additive for concrete).'  MATERIALS AND CONSTRUCTION,SUMMARIES OF TECHNICAL OF ANNUAL MEETING ARCHITECTURAL INSTITUTE OF JAPAN,2000,  pp.1069-1070