Journal of the Korea Institute of Building Construction (한국건축시공학회지)

The Korean Institute of Building Construction (한국건축시공학회)
권호 표지
DOI QR코드

DOI QR Code

Strength Properties of the Fiber Mixed High Strength Concrete at Elevated Temperature

고온 가열에 따른 섬유혼입 고강도 콘크리트의 강도특성 변화

  • 김상식 (청주대 대학원, (주)정일구조기술사사무소) ;
  • 김성수 (청주대학교 건축공학부)
  • Published : 2008.10.20
Download PDF
⟨ Previous Next ⟩

Abstract

This study is to investigate experimentally residual strength properties of the high strength concrete containing the hybrid of nylon and polypropylene fiber at elevated temperature. Test results showed that specimens heated up to $300^{\circ}C$ exhibited similar strength properties to the one at room temperature. This result is significantly different from previous studies. but specimens heated over $400^{\circ}C$ showed dramatic decrease indicating similar tendency. For the residual strength properties, one at $300^{\circ}C$ even increased 10%, which is also different from previous studies, but it significantly decreased in $400^{\circ}C$ as widely expected. Melted pores by organic fibers in concrete specimens was observed with FE-SEM. For the density of concrete in elevated temperature, internal system in $200^{\circ}C$ had even denser than in $20^{\circ}C$, but was collapsed in $400^{\circ}C$.

Keywords

References

  1. 김현정, 최은규, 신영수, 이차돈, 권영진; 폴리프로필렌 섬유를 혼입한 고강도 RC 및 SRC 압축부재의 온도분포, 대한건축학회 학술발표대회논문집, 제26권, 제1호, 2006
  2. 박찬규, 고온에서의 콘크리트 열적 특성의 변화, 콘크리트 학회지, 18권 6호, 2006
  3. 장기현, 배장춘, 김호림, 지석원, 양성환, 한천구; 나일론 및 폴리프로필렌섬유 복합혼입에 따른 고강도 콘크리트의 폭렬특성, 한국구조물진단학회 학술발표논문집, 제11권 1호, 2007
  4. 콘크리트 연구단, 인명보호를 위한 내화성 고성능 콘크리트의 개발 및 실용화(1-10), 2007년 연차실적보고서, 2007
  5. 화재와 콘크리트, 콘크리트학회지 특집기사, Vol. 14, No. 2, 2002
  6. 황인성, 화재 시 고성능 콘크리트의 폭렬에 미치는 재료 및 배합요인의 영향, 청주대학교 석사학위논문, 1999.12
  7. C.G. Han, Y.S. Hwang, S.H Yang, N. Gowripalan, Performance of spalling resistance of high performance concrete with polypropylene fiber contents and lateral confinement, Cement and Concrete Research, 35, 2005, pp.1747-1753 https://doi.org/10.1016/j.cemconres.2004.11.013
  8. Gai-Fei Peng, Wen-Wu Yang, Jie Zhao, Ye-Feng Liu, Song-Hua Bian, Li-Hong Zhao; Explosive spalling and residual mechanical properties of fiber-toughened high-performance concrete subjected to high temperatures, Cement & Concrete Research 36, 2006, pp.723-727 https://doi.org/10.1016/j.cemconres.2005.12.014
  9. Gary R. Consolazio, Michael C. McVay, Jeff W. Rish III, Measurement and prediction of pore pressures in saturated cement mortar sujected to radiant heating, ACI Materials Journal, Vol. 95, 1998, pp.525-536
  10. Long T. Phan, High performance concrete at high temperature an overview, NIST report, 2002
  11. NIST, Fire Performance of High-Strength Concrete: A Report of the State-of-the-Art, NIST, Dec., 1996
  12. Pierre Kalifa, Gregoire Chene, Christophe Galle, High temperature behaviour of HPC with polypropylene fibres from spalling to microstructure, Cement and Concrete Research 31, 2001, pp.1487-1499 https://doi.org/10.1016/S0008-8846(01)00596-8
  13. 一潄賢一, 川口徹, 長尾覺博 ; 高溫加熱後の高强度コンク リートの力學的性質におよぼす骨材の影響, 日本建築學會大會學術講演梗槪集, 2002. 8
  14. 韓千求, 李建哲, 韓敏喆, 許榮善; 有機纖維を調合使用した高 强度コンクリ一トの爆裂防止, 日本コンクリ一ト工學協會, vol. 29, No. 2, 2007

Cited by

  1. Compressive Properties of Ultra High Strength Concrete Exposed to High Temperature vol.26, pp.3, 2014, https://doi.org/10.4334/JKCI.2014.26.3.377