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http://dx.doi.org/10.5916/jkosme.2013.37.3.260

The effect of temperature and relative humidity on concrete slab specimens with impressed current cathodic protection system  

Jeong, Jin-A (Sea Training Center, Korea Maritime University)
Jin, Chung-Kuk (Department of Marine System Engineering, Korea Maritime University)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.37, no.3, 2013 , pp. 260-265 More about this Journal
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 $400mm{\times}400mm$ 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.
Keywords
Cathodic protection; Concrete structure; ICCP; Temperature; Relative humidity;
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