Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Evaluation of impact resistance of high performance fiber reinforced cementitious composites under high-speed projectile crash

고속 비상체 충돌에 대한 고성능 섬유보강 시멘트 복합체의 방호성능 평가

  • Moon, Jae-Heum (Korea Institute of Civil Engineering and Building Technology) ;
  • Park, Jung-Jun (Korea Institute of Civil Engineering and Building Technology) ;
  • Park, Gi-Joon (Korea Institute of Civil Engineering and Building Technology) ;
  • Cho, Hyun-Woo (Korea Institute of Civil Engineering and Building Technology) ;
  • Kim, Sung-Wook (Korea Institute of Civil Engineering and Building Technology) ;
  • Lee, Jang-Hwa (Korea Institute of Civil Engineering and Building Technology)
  • 문재흠 (한국건설기술연구원 구조융합연구소) ;
  • 박정준 (한국건설기술연구원 구조융합연구소) ;
  • 박기준 (한국건설기술연구원 구조융합연구소) ;
  • 조현우 (한국건설기술연구원 구조융합연구소) ;
  • 김성욱 (한국건설기술연구원 구조융합연구소) ;
  • 이장화 (한국건설기술연구원 구조융합연구소)
  • Received : 2015.05.28
  • Accepted : 2015.07.16
  • Published : 2015.07.31
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Abstract

The importance of public infrastructures' protection against crash or blast loads has been emerging issue as structures are becoming bigger and population densities in downtown cities are growing up. However, there exists no sufficient study which considers the developments of protective building materials, that are essential for protective design and construction. To assess the protection performance and the applicability as protective materials of high performance fiber reinforced cementitious composites(HPFRCC), this study performed the impact tests with 40 mm gas-gun propelled projectile crash machine. From this study, it has observed that both high compressive strength of cement matrix and fiber reinforcement are beneficial for the improvement of impact resistance.

공공시설물의 대형화 및 도심지로의 인구 밀집화에 따라 충돌 또는 폭발과 같은 하중조건 하에서의 구조물 방호성능의 중요성이 대두되고 있다. 그러나, 구조물의 방호설계 및 시공에 있어서 필수적이라 할 수 있는 구조재료 또는 자재에 대한 기술개발은 제대로 이루어지고 있지 않은 실정이다. 이에, 본 연구에서는 고성능 섬유보강 시멘트 복합재로의 기본적인 방호성능 및 방호용 자재로서의 적용 가능성을 파악하고자 40 mm 가스건을 사용한 충격 파괴시험을 수행하였다. 실험 수행 결과, 고성능 섬유보강 시멘트 복합재료에 있어서 시멘트 매트릭스의 강도 및 보강섬유가 방호성능 향상에 도움이 됨을 확인할 수 있었다.

Keywords

References

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