STUDY ON APPLICABILITY OF STEEL SLAG HYDRATED MATRIX TO STEEL REINFORCED MEMBERS UNDER MARINE ENVIRONMENT

Abstract

A new construction material called “steel slag hydrated matrix”, hereafter this term will be abbreviated as SSHM, produced from steel making slag, ground blast furnace slag powder without using portland cement and natural gravel was developed. However, its application has been limited to non-steel reinforcement material when used in structures under marine environment. In this research, the possibility to apply SSHM for steel reinforced structures has been investigated. The results showed that the resistance to chloride ion penetration, oxygen permeability, resistance of steel bar to corrosion in SSHM were equal to or even better than that of steel reinforced concrete material under marine environment. Moreover, the possibility to apply SSHM for steel reinforced material was confirmed in terms of durability.