Yokomuro,  T. ,Yoda Akihiko ' Study on utilization of ground granulated blast-furnace slag as additives for concrete (Part23 Properties of Concrete Using Ground Granulated Blast-Furnace Slag of Different Specific Surface Areas at the Same Replacement and Water-Binder Ratio).'  MATERIALS AND CONSTRUCTION,SUMMARIES OF TECHNICAL OF ANNUAL MEETING ARCHITECTURAL INSTITUTE OF JAPAN,1999,  pp.317-318