Development of Ultra High Strength Fiber Reinforced Concrete using Synthetic Fiber

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The purpose of this study is to develop the ultra high strength fiber reinforced concrete(UFC) using synthetic fiber as substitute for steel fiber which has possibility of corrosion. As a result of research, the UFC using aramid fiber was developed, whose strength was 70～80% of that of the UFC using steel fiber. The UFC using polyvinyl alcohol(PVA) fiber was also developed aiming to reduce material cost. The compressive strength and flexural strength of the UFC using PVA fiber were 140N/mm^2 and 15N/mm^2, respectively.