The effect of temperature and relative humidity on concrete slab specimens with impressed current cathodic protection system
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초록
Impressed current cathodic protection (ICCP) system is one of the most promising corrosion protection methods. The Effect of ICCP system can be changed at diverse conditions. Particularly, temperature and relative humidity plays a crucial role in CP (Cathodic Protection) effect. Thus, in this study, the influence of temperature and relative humidity on concrete specimens was investigated. Specimens were concrete slab type with a base of 400mm × 400mm and height of 70mm. To enhance the effect of CP system, seawater was used as an electrolyte. Used anode for ICCP system was mixed metal oxide (MMO) titanium. Test factors were natural potential, CP potential, CP current, and 4-hour depolarization potential. From this study, it could be confirm that CP potential and current were highly influenced by temperature and relative humidity.
Abstract
Impressed current cathodic protection (ICCP) system is one of the most promising corrosion protection methods. The Effect of ICCP system can be changed at diverse conditions. Particularly, temperature and relative humidity plays a crucial role in CP (Cathodic Protection) effect. Thus, in this study, the influence of temperature and relative humidity on concrete specimens was investigated. Specimens were concrete slab type with a base of 400mm × 400mm and height of 70mm. To enhance the effect of CP system, seawater was used as an electrolyte. Used anode for ICCP system was mixed metal oxide (MMO) titanium. Test factors were natural potential, CP potential, CP current, and 4-hour depolarization potential. From this study, it could be confirm that CP potential and current were highly influenced by temperature and relative humidity.
참고문헌 (14)
- J. P Broomfiend, "Corrosion of Steel in Concrete 2nd Edition" (2007), Taylor & Francis
- M. Kouril, "Threshold chloride concentration for stainless steels activation in concrete pore solutions", Cement and Concrete Research, 40, pp.431~436 (2010)
- M. Raupach, "Corrosion of Reinforcement in Concrete" (2007), European Federation of Corrosion Publications
- T. S. Nguyen, "Effect of environment temperature on the chloride diffusion though CEM-I and CEM-V mortars : an experimental study", Construction and Building Materials, 23, pp.795~803 (2009)
- 임명환, "해수와 청수환경에서 선박용 원심펌프 임펠러 재료의 캐비테이션 특성", CORROSION SCIENCE AND TECHNOLOGY, 10(6), pp.218~224 (2011), 한국부식방식학회
- T. D Rincon, "Environmental influence on point anodes performance in reinforced concrete", Concrete and Building Material, 22, pp.494~503 (2008)
- J. G. Nam, "Effects of relative humidity and temperature on chloride diffusion and time-to-corrosion of reinforcing steel in concrete", National Association of Corrosion Engineers International, (05257), pp.1~18 (2005)
- A. Raharinaivo, "Influence of temperature on the potential of reinforcing steel in concrete, under cathodic protection, corrosion of reinforcement in concrete construction", Royal Society of Chemistry, 183, pp.369~377 (1996)
- M. Rasheeduzzafar, "Effect of temperature on cathodic protection criterion for reinforced concrete structures", American Concrete Institute Special Publications, 139, pp.21~40 (1993)
- F. Hunkeler, "The resistivity of pore water solution-a decisive parameter of rebar corrosion and repair methods", Construction and Building Materials, 10, pp.381~389 (1996)
- M. Saleem, "Effect of moisture, chloride and sulphate contamination on the electrical resistivity of portland cement concrete", construction and building materials, 10, pp.209~214 (1996)
- F. Pruckner, "Corrosion and Protection of Reinforcement in Concrete Measurements and Interpretation", 박사, Department of National Sciences and Mathematics, pp.2001
- National Association of Corrosion Engineers International, "Impressed Current Cathodic Protection of Reinforcing Steel in Atmospherically Exposed Concrete Structures", U.S., Standard SP0290, ~ (2007)
- National Association of Corrosion Engineers International, "Control of External Corrosion on Underground or Submerged Metallic Piping Systems", U.S., Standard SP0169, ~ (2007)