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33 NACE INTERNATIONAL: VOL. 55, NO. 10 MATERIALS PERFORMANCE OCTOBER 2016 vided by four 300 by 50 by 10 mm discrete galvanic anodes, each containing ~300 g of pure zinc (Figure 4[a]). The zinc sacrificial anodes were embed- ded in a chelation material, which forms molecules with the metal ions. Seventy-two foundations were protected by the cathodic prevention method. To assess performance of systems in the region, cathodic prevention by zinc sheet anodes was also applied on one of the foundations using anodes from the same producer (Figure 4[b]). After one month of operation for the cathodic prevention, the initial per- formance of the systems was checked according to ISO 12696:2012. 12 The results of this evaluation at three different test points indicated that 100-mV potential decay from the instant-off value was achieved within 24 h after opening the circuit. Conclusions • The preliminary investigation indi- cated that roughly 60% of power trans- mission tower foundations in the north part of the Persian Gulf needed to be protected against chloride- induced corrosion. Hence, CP was the appropriate and logical approach to protect these concrete foundations and prolong their useful lives. • Cathodic prevention for new founda- tions was applied using distributed hydrogel and strip-typ e galvanic systems. After one month of opera- tion, potential decay from the instant- off potential confirmed the effective- ness of the applied system. Acknowledgments The authors would like to thank the Hormozgan Regional Electric Co. and Takta Sharif Corrosion Co. for their commercial and financial support. The contribution of Ehssan Gheirati for his review and editing of this article is greatly acknowledged. References 1 V. Brandenbursky, et al., "Ground Resistance Calculation for Small Concrete Foundations," Electric Power Systems Research 81 (2011): p. 408. 2 "Electric Power Industry in Iran 2013-2014," Tavanir Holding Co., report no. 11-11, October 2014. 3 "Statistical Report on 47 Years of Activities of Iran Electric Power Industry," Tavanir Holding Co., report no. 9-11, October 2014. 4 "Installation of Cathodic Protection System on 5 km Foundations of 230 kV Electric Transmis- sion Line Towers," Takta Sharif Corrosion Co., report no. 94-084, January 2016. 5 M. Dugarte, "Polarization of Galvanic Point Anodes for Corrosion Prevention in Reinforced Concrete" (Ph .D. diss., University of South Florida, 2010), p. 8. 6 I. Martinez, C. Andrade, "Application of EIS to Cathodically Protected Steel," Corros. Sci . 50 (2008): p. 2,948. 7 C. Christodoulou, et al., "Assessment the Long Term Benefits of Impressed Current Cathodic Protection," Corros. Sci. 52 (2010): p. 2,671. 8 NACE SP0308-2008, "Inspection Methods for Corrosion Evaluation of Conventionally Rein- forced Concrete Structures" (Houston , TX: NACE International, 2008). 9 ASTM C1218-15, "Standard Test Method for Water-Soluble Chloride in Mortar and Con- crete" (West Conshohocken, PA: ASTM Interna- tional, 2015). 10 ASTM G57-06, "Standard Test Method for Field Measurement of Soil Resistivity Using the Wenner Four-Electrode Method" (West Con- shohocken, PA: ASTM, 2006). 11 ASTM C876-09, "Standard Test Method for Corrosion Potentials of Uncoated Reinforcing Steel in Concrete" (West Conshohocken, PA: ASTM, 2009). 12 ISO 12696:2012, "Cathodic Protection of Steel in Concrete" (Geneva, Switzerland: ISO, 2012). HADI BEIRAMI is a Ph.D. candidate at Shahid Bahonar University of Kerman (SBUK), Dept. of Materials Engineering, Faculty of Engi- neering, SBUK, Jomhuri Blvd., Kerman, Iran, e-mail: hbeirami@yahoo.com. Beirami re- ceived his M.Sc. from Sharif University of Technology in 2000. He has 15 years of expe- rience in the field of corrosion assessment and corrosion protection of concrete struc- tures. He is the founder of TAKTA Sharif Cor- rosion Co., which is a knowledge-based com- pany in the field of corrosion and protection of materials. He has published more than 40 scientific articles and research reports. He is a three-year member of NACE International. MARYAM EHTESHAMZADEH is a research and technology vice chancellor and a full pro- fessor and corrosion specialist at SBUK, e-mail: ehtesham@uk.ac.ir. Ehteshanzadeh has published more than 75 articles and three books, and has supervized more than 40 Ph.D. theses and M.Sc. degrees. Applying Cathodic Prevention to Electric Transmission Tower Foundations