Abstract
The objective of this study is to find whether or not it is possible to use melting slag powder from municipal solid waste (MSW slag powder) as a concrete admixture. In this paper, MSW slag powder (blaine's specific surface area=3, 920cm2/g) made by coke-bed melting processes was examined.-I inspected the quality of the MSW slag powder and properties of mortar, and concrete that used the MSW slag powder in research. As a result, the following have been clarified:(1) The chemical compositions of the MSW slag is same of that of blast-furnace slag, but the alkali content is much more than that of it.(2) T he slag elutes hardly any heavy metals at all.(3) MSW slag powder has the characteristics equivalent to the blast-furnace slag powder (flow value, stable, setting time, early period heat of hydration, strength, Freeze-thaw resistance).
