Abstract
SHIRASU, which is one of pyroclastic flow deposits, contains many minute particles and exists in South Kyushu so much as unused resources. Authors are doing the research and development which use SHIRASU as fine aggregate for concretes. In this study, authors tried to develop the design method of mix proportion of self-compacting concrete with SHIRASU experimentally. As a result, fundamental idea was proposed in order to design the mix proportion of self-compacting concrete with SHIRASU particles by mortor test.
Furthermore, production and the examination of precasted PC bridge which used SHIRASU concrete were performed, and the applicability of SHIRASU concrete was checked.