Journal of the Korea Institute of Building Construction (한국건축시공학회지)

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

DOI QR Code

Corrosion Protection of Steel by Applying a Zn-Sn Metal Spray System

Zn-Sn 합금을 이용한 강구조물의 금속용사공법 방식성능평가 연구

  • Ryu, Hwa-Sung (Department of Architectural Engineering, Han Yang University) ;
  • Jeong, Dong-Geun (Department of Architectural Engineering, Han Yang University) ;
  • Lee, Han-Seung (Department of Architectural Engineering, Han Yang University)
  • Received : 2014.02.24
  • Accepted : 2014.08.31
  • Published : 2014.12.20
Download PDF
⟨ Previous Next ⟩

Abstract

The purpose of this study is to evaluate the corrosion protective properties of a Zn-Sn metal spray method according to the contents of Zn and Sn by a CASS test and the electrochemical theory. In the experiment, the CASS test and the electrochemical test were conducted to investigate the corrosion protective property of the Zn-Sn Metal Spray system, the Zinc galvanizing system, and the heavy duty coating system. As a result, it was confirmed that the Zn-Sn (65:35) Metal Spray system had very high corrosion protective property through the electrochemical characteristic as comparison with the other anti-corrosion systems and was very effective to prevent steel products from corrosion.

본 연구에서는 전기화학적인 시험 및 CASS Test(염수분무시험)을 실시하여 중방식도장 시험체와 용융아연도금 시험체, Zn-Al 시험체와의 비교를 통해 Zn-Sn 금속용사의 방식 성능을 평가하였다. 시험 결과, 전기화학 시험을 통하여 Zn-Sn / Zn-Al 상온금속용사 시스템 공법의 방식원리는 방식전위에 의하여 확보되는 것을 확인하였으며 강구조물의 방식 공법으로서 상온금속용사 공법은 용융아연도금 공법과 중방식 도장공법과 비교하여 매우 우수한 방식성능을 가지고 있는 것이 CASS 시험을 통하여 검증되었다. 특히 Zn-Sn 금속용사와 Zn-Al 금속용사를 비교해본 결과 그 방식성이 현저하게 차이가 있지는 않았으나 Zn-Sn(65:35) 비율의 시험체가 가장 우수하였다. 또한 중방식 도장은 손상된 부분에서 현저하게 녹이 발생하고 도막이 박리되지만, Zn-Sn / Zn-Al 상온금속용사 시스템 공법은 갈바닉 희생방식에 의하여 매우 높은 부식 방지 특성을 가지고 있음을 확인 하였다.

Keywords

References

  1. Jones DA, Principles and prevention of corrosion. Prenice Hall, New York. 1996:1-22.
  2. Lee EH, Priciples and Prevention of Corrosion. Korea Publication Dong Hwa Technology, 2004 January:60-99.
  3. Chess Paul, Cathodic protection of steel in concrete, London U. K., E & Fn Spon. 1998:1-27.
  4. Huet B, L'hostis V, Santarini G, Feron D, Idrissi H, Steel corrosion in concrete: Determinist modeling of cathodic reaction as a function of water saturation degree. Corrosion science. 2007 May:49(4):1918-32. https://doi.org/10.1016/j.corsci.2006.10.005
  5. Lee HS, An JM, Shin SW, Study on the evalustion of Corrosion Protection effect with LiNO2, inhibitor. Journal of the Korea S.M.I's. 2002 May:6(2):339-42.
  6. Ushdima SAHAE. Study on Cathodic Protection of Reinforcing Steel in Concrete by Zinc Metalizing. Proceedings of the Japan Concrete Institute.1992 April:14(1):50-92.
  7. Kang CS, Lee HS. The Study on the Electrochemical Corrosion Protection of the Zn-Al. Proceeding of Autumn Annual Conference of the Architectural Institute of Korea. 2005 October;25(1):165-8.
  8. Kim JS, Lee HS. Evaluation og the Corrosion Protective Property of Metal Spray System by CASS Test. Proceeding of Spring Annual Conference of the Architectural Institute of Korea. 2001 April;21(1):237-40.
  9. Han MH, Yoo JH, Lim YC, Lee HS. An Experimental Study on the Application of Cathodic Protection By Applying Zn-Al Metal Spray to an RC Structure. Journal of the Korea Institute of Building Construction. 2010 October;10(5):21-9. https://doi.org/10.5345/JKIC.2010.10.5.021
  10. Kang CS, Prediction on the anti-corrosion life of steel applying Zn-Al thermal metal spray method by the electrochemical experiment, master's thesis. Seoul: Hanyang university; 2006 February. 46 p.

Cited by

  1. An Electrochemical Evaluation of the Corrosion Properties of the Steel with the Type and the Thickness of Metallizing Coatings vol.25, pp.3, 2016, https://doi.org/10.7844/kirr.2016.25.3.55