Corrosion Science and Technology

The Corrosion Science Society of Korea (한국부식방식학회)
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Investigation of the Effective Range of Cathodic Protection for Concrete Pile Specimens Utilizing Zinc Mesh Anode

  • Duhyeong Lee (Division of Marine System Engineering Korea Maritime & Ocean University) ;
  • Jin-A Jeong (Division of Marine System Engineering Korea Maritime & Ocean University)
  • Received : 2024.03.30
  • Accepted : 2024.05.02
  • Published : 2024.06.30
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Abstract

A zinc mesh sacrificial anode cathodic protection method is recently being developed to protect the reinforced concrete structure in a marine environment. However, comprehensive information regarding the cathodic protection technology applied to reinforced concrete test specimens utilizing zinc mesh sacrificial anodes remains limited. Particularly, no research has investigated the effective range of sacrificial anode cathodic protection in a reinforced concrete structure regarding the transmission of protection current from zinc mesh sacrificial anode to the reinforced concrete structure, particularly concerning effects of temperature variations. This study examined the distribution of potential and current using a long single rebar and several segment reinforcing bars inside a horizontal beam. Vertical pile specimens were applied with a zinc mesh sacrificial anode to simulate concrete bridges or harbor structures. To check the effect of cathodic protection, cathodic protection potential and current of the reinforced concrete specimens were measured and 100 mV depolarization criterion test was performed. It was confirmed that effect of cathodic protection varied depending on resistivity and temperature. The cathodic protection test of pile specimens revealed that the maximum reachable range of cathodic protection current was 10 cm from the waterline as observed in the experiment.

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References

  1. J. A. Jeong, C. K. Jin, Y. H. Kim, W. S. Chung, Electrochemical performance evaluation of corrosion monitoring sensor for reinforced concrete structures, Journal of Advanced Concrete Technololy, 11, 1 (2013). Doi: https://doi.org/10.3151/jact.11.1
  2. Y. Zhou, B. Gencturk, K. Willam, A. Attar, Carbonation-induced and chloride-induced corrosion in reinforced concrete structures, Journal of Materials in Civil Engineering, 27, 04014245 (2015). Doi: https://doi.org/10.1061/(ASCE)MT.1943-5533.0001209
  3. X. Feng, Q. Yan, X. Lu, T. Wu, Y. Zhang, Y. Zuo, J. Wang, Protection performance of the submerged sacrificial anode on the steel reinforcement in the conductive carbon fiber mortar column in splash zones of marine environments, Corrosion Science, 174, 108818 (2020). Doi: https://doi.org/10.1016/j.corsci.2020.108818
  4. L. Eric, B. Jean-francois, B. Veronique, D. Tiffany, Contribution of Sacrificial Anode in reinforced concrete patch repair: Results of numerical simulations, Construction and Building Materials, 178, 405 (2018). Doi: https://doi.org/10.1016/j.conbuildmat.2018.05.063
  5. G. Sergi, G. Seneviratne, D. Simpson, Monitoring results of galvanic anodes in steel reinforced concrete over 20 years, Construction and Building Materials, 269, 121309 (2021). Doi: https://doi.org/10.1016/j.conbuildmat.2020.121309
  6. L. Bertolini, E. Redaelli, Throwing power of cathodic prevention applied by means of sacrificial anodes to partially submerged marine reinforced concrete piles: Results of numerical simulations, Corrosion Science, 51, 2218 (2009). Doi: https://doi.org/10.1016/j.corsci.2009.06.012
  7. M. A. Caronge, H. Hamada, R. Irmawaty, Y. Sagawa, D. Yamamoto, Application of sacrificial point anode for prevention of steel corrosion in cracked concrete, Journal of Advanced Concrete Technology, 13, 465 (2015). Doi: https://doi.org/10.3151/jact.13.479
  8. M. M. S. Cheung, C. Cao, Application of cathodic protection for controlling macrocell corrosion in chloride contaminated RC structures, Construction and Building Materials, 45, 199 (2013). Doi: https://doi.org/10.1016/j.conbuildmat.2013.04.010
  9. D. Garcia, S. Laurens, S. Panin, A comprehensive study of the spatial distribution of the galvanic protection current supplied by zinc layer anodes applied to steel-reinforced concrete structures, Corrosion Science, 158, 108108 (2019). Doi: https://doi.org/10.1016/j.corsci.2019.108108