강섬유 종류 및 혼입률에 따른 초고성능 콘크리트의 비용절감 효과 분석

초록

In this study, the cost reduction effect of ultra-high-performance concrete(UHPC) was investigated in terms of steel fiber type and volume fraction. In order to reduce production cost of UHPC, the fiber volume fraction needs to be reduced without any deterioration of mechanical properties. For this, the flexural performance and cost effectiveness were analyzed according to steel fiber type and volume fraction. Test results showed that the uses of longer and deformed steel fibers can save production cost of UHPC up to 35% in comparison with that of short straight steel fiber.