건설재료시공학연구실

Building material & construction lab.

Abstract
In this study, concrete with reinforced polypropylene fiber and amorphous steel fiber, which is expected to have improved residual strength, spalling suppression ability and crack control ability, was fabricated. Polypropylene fiber was fixed at 0.25 vol.% and amorphous steel fiber was mixed at 0, 0.3, 0.5 vol.%. also The spalling properties of concrete were evaluated. Experimental results show that the specimens containing 0.3 vol.% of amorphous steel fiber showed the best residual strength while preventing spalling.