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A study on the fire resistance method using FR-ECC in long tunnel

고인성내화모르터(FR-ECC)를 사용한 장대터널 내화안전대책에 관한 연구

  • 김세종 (호서대학교 소방방재학과) ;
  • 김동준 (호서대학교 소방방재학과) ;
  • 권영진 (호서대학교 소방방재학과)
  • Received : 2010.08.20
  • Accepted : 2011.01.10
  • Published : 2011.01.31

Abstract

The spalling phenomenon occurs in high-strength concrete when several factors such as sharp temperature increase, high water content, low water/cement ratio and local stress concentration in material combine in the concrete material. On the basis of the factors, the preventing methods from the spalling are known as reduction of temperature increase, preventing of concrete fragmentation and fast drying of internal moisture. In this study, the reduction of temperature increase was proposed as the most effective spalling-preventing method among the spalling-preventing methods. Engineered cementitious composite for fireproof and repair materials was developed in order to protect the new and existing RC structures form exterior deterioration factors such as fire, cloride ion, etc. This study was carried out to estimate the fire-resisting performance of high strength concrete slab or tunnel lining by repaired engineered cementitious composite (ECC) or fiber reinforcement cemetitious composite (FRCC) under fire temperature curve. and them we will descrike the result of HIDA tunnel in Japan.

Acknowledgement

Supported by : 한국과학재단

References

  1. Kwon, Y.J. (2008), "Countermeasures for the structural fire risk of high-rise buildings in Korea", Tokyo University of Science 1st Global COE International Symposium for the Reduction of Fire Damage in East Asia, pp. 75-83.
  2. 李在永(2008), "高强度コンクリ-トにおけるECC被服層の爆裂現想に關する硏究", 日本火災學會.
  3. 金世宗(2008), "高引性耐火モルタルの耐火特性に關する硏究", 日本建築學會.
  4. 이재영(2008), "철근콘크리트 구조물의 폭렬현상을 고려한 구조내화 성능설게를 위한 연구", 호서대학교 석사학위 논문.