A STUDY ON UTILIZATION OF MOLTEN SLAG OF MUNICIPAL SOLID WASTE AS FINE AGGREGATE FOR CONCRETE

This study was carried out in aiming for utilization of molten slag of municipal solid waste as fine aggregate for concrete. Several examinations were executed by using 4 types of molten slag to investigate the characteristics of each slags and the requisites as fine aggregate in this study. It was clarified that melting methods hardly affected to the chemical composition of slag. However, its physical property depended on the producting method. And, even poor-quality slag, that had unsuitable grading, can be utilized by processing of grinding. Furthermore, consistency of mortar using processed slag was better than that of natural sand. However, the more slag was processed, the less compressive strength of mortar became.