Journal of the Korea institute for structural maintenance and inspection (한국구조물진단유지관리공학회 논문집)

Korea Institute for Structural Maintenance Inspection (한국구조물진단유지관리공학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Steel Anticorrosive Effect of Fiber-Reinforced Cement Composite (FRCC) by using Metal Fibers

금속섬유를 이용한 섬유보강 시멘트 복합재료(FRCC)의 철근 방식 효과

  • 최형길 (경북대학교 건축학부) ;
  • 최희섭 (키타미공업대학교 공학연구과)
  • Received : 2018.11.05
  • Accepted : 2019.01.09
  • Published : 2019.07.01
Download PDF
⟨ Previous Next ⟩

Abstract

Fiber-Reinforced Cement Composite (FRCC) is known to be effective in mechanical effects such as cracking width control as well as steel anticorrosive effect. In this study, we examined about steel anticorrosive effect by using metal fibers including zinc fibers by accelerated corrosion test. Moreover, it was examined for salt penetration, sacrificial anode effect and formation of electric circuit that was significant effect on the steel anticorrosive effect. As a result, Steel anticorrosive effect was confirmed with mixed metal fibers on FRCC. Especially, In the case of zinc fibers with a high sacrificial anode effect, it was confirmed that the suppression of penetration and corrosion resistance were improved.

섬유보강 시멘트계 복합재료 (이하 FRCC)는 균열 폭의 제어 등의 역학적인 효과뿐 아니라 철근방식에도 효과가 있는 것이 기존의 문헌으로부터 확인되고 있다. 본 연구에서는 아연섬유를 포함한 각종 금속섬유를 이용하여 철근의 방식효과를 부식 촉진 실험에 의해 검토했다. 더욱이 방식효과에 큰 영향을 미치는 염분침투, 희생양극 효과, 전기회로 형성에 주목하여, 각각의 요인에 있어서 검토를 실시했다. 그 결과, 금속섬유를 혼입한 FRCC의 방식효과를 확인할 수 있었으며, 특히 희생 양극효과가 높은 아연섬유의 경우, 염분침투 억제 효과가 뛰어나 내부식 성능이 향상되는 것을 확인할 수 있었다.

Keywords

References

  1. Korea Concrete Institute (2009), Korea Standard Specification, KCI.
  2. Korea Concrete Institute (2012), Korea Structural Concrete Design Code, KCI.
  3. JSCE (2002), Standard Specifications for Concrete Structures, JSCE Guidelines for Concrete.
  4. Architectural Institute of Japan (2006), Recommendations for Practice of Crack Control in Reinforced Concrete Buildings (Design and Construction), AIJ.
  5. Skalny, J. P. (1989), Materials Science of Concrete, The American Ceramic Society Inc.
  6. Beeby, A. W. (1978), Corrosion of reinforcing steel in concrete and its relation to cracking, Structural Engineer, 56, 77-81.
  7. ACI Committee 224 (1991) Control of Cracking in Concrete Structures, ACI Manual of Concrete Practice Part 3-1991: Use of Concrete in Buildings-Design, Specifications, and Related Topics, American Concrete Institute, Detroit.
  8. Hirozo, M., Shaikh, F. U. A., and Ayuko, K. (2011), Corrosion of Reinforcing Steel in Fiber Reinforced Cementitious Composites, Journal of Advanced Concrete Technology, 9(2), 159-167. https://doi.org/10.3151/jact.9.159
  9. Kobayakawa, A., Honma, D., Mihashi, H., and Shimozawa, K. (2009), Study on corrosion durability of fiber reinforced cementitious composite, Summaries of Technical Papers of Annual Meeting, Architectural Institute of Japan, 177-178.
  10. Guenbour, A., Benbachir, A., and Kacemi, A. (1999), Evaluation of the corrosion performance of zinc-phosphate-painted carbon steel, Surface and Coatings Technology, 113(1-2), 36-43. https://doi.org/10.1016/S0257-8972(98)00816-0
  11. Cinca, N., Lima, C. R. C., and Guilemany, J. M. (2013), An overview of intermetallics research and application: status of thermal spray coatings, Journal of Materials Research and Technology, 2(1), 75-86. https://doi.org/10.1016/j.jmrt.2013.03.013
  12. Paul, C. (1998), Cathodic protection of steel in concrete, London U. K., E & Fn Spon
  13. BRE Digest 109, Building Research Establishment (1969), Zinc-Coated Reinforce for Concrete , UK.
  14. Stark, D. (1977), Galvanized Reinforcement in Concrete Containing Chloride, Portland Cement Association International Lead Zinc Research Organization, Report on Project ZE-247.
  15. Japan Concrete Insititute (1991), JCI SC3, The accelerated corrosion test for reinforcing steel in concrete, JCI
  16. Someh Abdullah, K., Saeki, N., Horiguchi, T., and Notoya, T. (2000), Performance and behavior for corrosion protection of reinforced concrete members with galvanized steel fivers, Proceedings of Japan Society of Civil Engineers, 48(655), 35-46.
  17. Tsuji, K., Hoshino, T., and Kobayashi, K. (1989), Mechanism of Corrosion Protection of Reinforcing Bars in Steel Fiber Reinforced Concrete, Institute of industrial science, The University of Tokyo, 41(10), 62-63.
  18. Kim, J. J., Park, D. C., Kanematsu, M., and Noguchi, T. (2006), Research on corrosion control mechanism for reinforcing bar by incorporation of steel powder, Proceedings of the Japan Concrete Institute, 28(1), 1037-1042.