In this study, it evaluate the impact resistance of UHPC by repeated impact. smooth steel fiber and polyvinyl alcohol fiber were reinforced in UHPC respectively. Overall, the impact resistance of the specimens reinforced with 0.4vol.% PVA fiber was high, and the crater diameter was small in specimens using 13mm fiber.

Abstract
 1. 서 론
 2. 실험계획 및 방법
 3. 실험결과 및 고찰
 4. 결 론
 참고문헌

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