Effect of Organic Coating Corrosion Inhibitor on Protection of Reinforced Mortar
- 1 Department of Chemical Engineering, National Technical University of Athens, Athens, Greece
- 2 Department of Chemical Engineering, National Technical University of Athens, Athens, Greece
- 3 Department of Civil and Environmental Engineering, University of Cyprus, Nicosia, Cyprus
- 4 Department of Chemical Engineering, National Technical University of Athens, Athens, Greece
Abstract
Corrosion of reinforced concrete is the most important cause of concrete structure deterioration. In the present study, the protective effect of the reinforcement mortars against corrosion is examined. In particular, the chloride penetration resistance on reinforced cement mortars using organic coating as additive containing was studied. The aforementioned additive consists of corrosion inhibitor for protection of steel rebars against pitting corrosion. For the experimental procedure, four (4) different types of reinforced mortars were prepared. The corrosion protection of the additive was evaluated by electrochemical methods, (linear polarization resistance, Half-cell Potential Resistance and Electrochemical Impedance Spectroscopy). In addition, the mass loss of steel rebars against time of partially immersed in NaCl solution was carried out in the lab. The experimental results showed that in all examined cases the organic coating provides anticorrosion protection on steel rebars against chlorides.
- Kouloumbi, N. and Batis, G. (1992) Chloride Corrosion of Steel Rebars in Mortars with Fly Ash Admixtures. Cement and Concrete Composites, 14, 199-207. https://doi.org/10.1016/0958-9465(92)90014-M
- Zacharopoulou, A., Zacharopoulou, E. and Batis, G. (2014) Protection Systems for Reinforced Concrete with Corrosion Inhibitors. Open Journal of Metal, 4, 86-92. https://doi.org/10.4236/ojmetal.2014.44010
- Hanson, C.M., Poursaee, A. and Jaffer, S.J. (2012) Corrosion of Reinforcing Bars in Concrete. The Masterbuilder.
- Kouloumbi, N. and Batis, G. (1992) Chloride Corrosion of Steel Rebars in Mortars with Fly Ash Admixtures. Cement & Concrete Composites, 14, 199-207. https://doi.org/10.1016/0958-9465(92)90014-M
- O’Reilly, M., Darwin, D., Browning, J., Xing, L., Lock Jr., C.E. and Virmani, Y.P. (2013) Effect of Corrosion Inhibitors on Concrete Pore Solution Composition and Corrosion Resistance. ACI Materials Journal, 110-M53.
- Song, H.-W. and Saraswathy, V. (2007) Corrosion Monitoring of Reinforced Concrete Structures—A Review. International Journal of Electrochemical Science, 2, 1-28.
- Chousidis, N., Rakanta, E., Ioannou, I. and Batis, G. (2015) Anticorrosive Effect of Electrochemical Manganese Dioxide By-Products in Reinforced Concrete. Journal of Materials Science and Chemical Engineering, 3, 12. https://doi.org/10.4236/msce.2015.35002
- Hanson, C.M., Mammoliti, L. and Hope, B.B. (1998). Corrosion Inhibitors in Concrete—Part I: The Principles. Cement and Concrete Research, 28, 1775-1781. https://doi.org/10.1016/S0008-8846(98)00142-2
- Batis, G. and Rakanta, E. (2001) Effects of Migrating Corrosion Inhibitors on Reinforced Lightweight and Common Mortars. 2nd International Congress on Studies in Ancient Structures, Istanbul, 2, 560-570.
- Zafeiropoulou, T., Rakanta, E. and Batis, G. (2013) Carbonation Resistance and Anticorrosive Properties of Organic Coatings for Concrete Structures. Journal of Surface Engineered Materials and Advanced Technology, 3, 67-74. https://doi.org/10.4236/jsemat.2013.31A010
- ELOT 142-37, Hellenic Organization of Standardization, Athens.
- Broomfield, J.P. (2006) Corrosion of Steel in Concrete: Understanding, Investigation and Repair. 2nd Edition, Taylor & Francis, 14.
- Hamby, A.S., El-Shenawy, E. and El-Bitar, T. (2006) Electrochemical Impedance Spectroscopy Study of the Corrosion Behavior of Some Niobium Bearing Stainless Steels in 3.5% NaCl. International Journal of Electrochemical Science, 171-180.