Journal of the Korea Institute of Building Construction (한국건축시공학회지)

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

DOI QR Code

A Study on the Fire Resistance and Mechanical Properties of High Strength Concrete Mixed Hybrid Fibers

하이브리드 섬유 혼입 고강도 콘크리트의 내화 및 역학적 특성에 관한 연구

  • Received : 2010.10.21
  • Accepted : 2010.12.07
  • Published : 2010.12.20
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, by using steel fiber, polypropylene fiber and these two hybrid fibers, the fire resistance performance and explosive properties of High Strength Concrete (HSC) with specified compressive strength of 40MPa are discussed. The paper also examines the bending resistance of the beam and the shearing resistance properties of non-reinforced HSC beam. This research helps to clarify the fire resistance of fiber HSC and its anti-explosion methods. The test results show that crack generation, explosion and carbonization can be effectively restrained when HSC is mixed with hybrid fibers under high temperature; furthermore, the maximum internal force and ductility are increased and the initial cracking can be restrained in the mechanical test.

본 연구는 고강도 콘크리트의 화재시 내화성능 확보를 위하여 주로 사용되는 강섬유(Steel Fiber), 폴리프로필렌(Polypropylene Fiber; 이하PP)와 PP섬유와 강섬유를 하이브리드 섬유를 혼입한 설계기준강도 40MPa의 고강도 콘크리트의 내화성능 및 폭렬 방지 방법을 검토하고, 섬유 혼입 고강도 콘크리트 보의 휨 및 전단보강근이 없는 보의 구조적 특성 연구를 통하여 섬유 혼입 고강도 콘크리트 보의 휨과 전단 저항거동을 파악하였다. 실험결과, 하이브리드 섬유를 보강하면 균열 및 폭렬 발생, 중성화 억제 효과 등을 나타내었다. 부재실험에서는 초기균열제어, 연성과 최대내력 증대의 효과를 나타내었다.

Keywords

References

  1. Kim JS, Cho CH, Shin YS. A study on the Structural properties of Fiber-reinforced Recycled Aggregate Concrete. Journal of the Korea Institute of Building Construction. 2008;8(5):35-42. https://doi.org/10.5345/JKIC.2008.8.5.035
  2. Kim JS, Cho CH, Shin YS. A study on the Mechanical properties of Fiber-reinforced Recycled Aggregate Concrete. Journal of the Korea Institute of Building Construction, 2009;9(4):131-7. https://doi.org/10.5345/JKIC.2009.9.4.131
  3. Kim DS. A Study on the Fire Resistance Performance and Structural Properties of High Strength Fiber Reinforcement Concrete. [PhD dissertation]. Gwangju: Chosun University; 2010.
  4. Shin SW, OH JK, Lee KS, Kwon YH. Shear Strength of Reinforced High-Strength Concrete Beams Without Shear Confinement. Architectural Institute of Korea. 1989;9(1): 381-94.
  5. Chung HS, Lee SJ. An Experiment Study on the bending behavior of Reinforced high Strength Concrete beams. Architectural Institute of Korea 1989;9(2):475-82.
  6. Lee WH, Yang WJ, Jee SW, Jung IH. A influence of Parameters on the Flexural and Shear Behavior of High Strength Lightweight Concrete Beam, Architectural Institute of Korea. 2006;26(1):225-8.
  7. HONMA A. A research of Spalling of Concrete, CiNii-Architectural Institute of Japan 1992:1393-4.
  8. NISHIDA A, YAMAZAKI N, INOUE H, A Study on the properties of High Strength Concrete with short polypropylene fiber for Spalling Resistance, CiNii-Architectural Institute of Japan 1994:331-8.
  9. KASAI Y, MATSUI I, YUASA N, ZHOU J. A study on Heat-resisting concrete: Discussion Aggregate, CiNii-Architectural Institute of Japan 1994:223-4.
  10. Harmathy TZ. Fire Safety Design & Concrete. Longman Group UK Kimited; 1993.
  11. Pierre K, Gregoire C, Christophe G. High Temperature Behaviour Concrete of HPC with Polypropyle- ne Fibers from Spalling to Microstructure. Cement and concrete Research,2001;31:1487-99. https://doi.org/10.1016/S0008-8846(01)00596-8
  12. Bilodean A., Malhotra VM, Hoff GC. Hydrocarbon Fire Resistance of High Strengh Normal Weight and Light Weight Concrete Incorporating Polypropylene Fibers, International Symposium on High Performance and Reactive Powder Concrete, Sherbrooke, QC. 1998:271-96.
  13. Boo CY, Kim JW. A Study on the Shear behavior of High Strength Reinforced Concrete Beam, Architectural Institute of Korea 1994;14(2):573-9.

Cited by

  1. Evaluation of Fire-induced Damage for Shield Tunnel Linings Subjected to High Temperatures vol.16, pp.4, 2012, https://doi.org/10.11112/jksmi.2012.16.4.001