PERSISTENT GEO-MATERIAL MIXED WITH STEEL-MAKING SLAG AND DREDGED SOIL

Abstract

 While the importance of national resilience has been recognized, various studies are being conducted about the redundancy and ductility in harbor structures. In this study, redundancy and ductility are considered the characteristics having limited strength reduction along with deformation, and the new geo-material utilizing converter steel-making slag was examined. First, it was manifested that a higher mixing ratio and larger grain size of steel-making slag were effective for redundancy and ductility as well as higher confining pressure. Furthermore, the contribution of fine/coarse fraction of steel-making slag on redundancy and ductility was clarified. Second, a desirable mixing ratio of steel-making slag was arranged for the effective use of dredged soil, and criterion proportion of fine/coarse fraction of steel-making slag was proposed.