Abstract: Using a linear polarization resistance method (LPR) and electrochemical impedance spectroscopy method (EIS), the self corrosion potential (Ecorr), polarization resistance (Rp), corrosion current density (Icorr), corrosion rate (Vcorr) and charge transfer resistance (Rct) of rebars were calculated. Anti-corrosion performances of different types of steel in CASC were studied, the effective anti-corrosion methods for CASC were suggested. The results showed that, for different types of steel in CASC, the Rp and Rct decreased with the extension of exposure time, Icorr increased with the extension of exposure time. The corrosion resistance of different types of steel followed the rule: 2205 duplex stainless steel > 316 stainless steel > new organic coated steel > zinc-chromium coated steel > common steel. Therefore, comprehensive consideration of the effect of anti-corrosion and cost, for CASC structure in the marine reef engineering, it was suggested to use new organic coated steel and calcium nitrate inhibitor, the concrete cover thickness is more than 5.5 cm, the concrete strength grade is more than C50, which could prolong the initial stage of steel corrosion, reduce the corrosion rate and prolong the service life of the structure.
1 Da B, Yu H F, Ma H Y, et al. Construction and Building Materials, 2016, 123, 47. 2 Angst U, Elsener B, Larsen CK, et al. Cement and Concrete Research, 2009, 39, 1122. 3 Song H W, Lee C H, Ann K Y. Cement and Concrete Composites, 2008, 30(2), 113. 4 Vines F R. Australian Road Research, 1982, 12(1), 17. 5 Rick A E. Concrete International, 1991, 1, 19. 6 Yu H F, Da B, Ma H Y, et al. Ocean Engineering, 2017, 135, 1. 7 Da B, Yu H F, Ma H Y, et al. Journal of the Chinese Ceramic Society, 2016, 44(2), 253 (in Chinese). 达波, 余红发, 麻海燕, 等. 硅酸盐学报, 2016, 44(2), 253. 8 Da B. Research on the preparation technology, durability and mechanical properties of concrete members of high strength coral aggregate seawater concrete. Ph.D. Thesis, Nanjing University of Aeronautics and Astronautics, China, 2017 (in Chinese). 达波. 高强全珊瑚海水混凝土的制备技术、耐久性及构件力学性能研究. 博士学位论文, 南京航空航天大学, 2017. 9 Ngala V T, Page C L, Page M M. Corrosion Science, 2002, 44(9), 2073. 10Bertolini L, Elsener B, Pediferri P, et al. Corrosion of steel in concrete, Wiley-VCH, Weinheim, Germany, 2004. 11Tang F, Chen G, Brow R K. Cement and Concrete Research, 2016, 82, 58. 12Wang Y Y, Chen L, Wang Z Q. Materials Review A:Review Papers, 2016, 30(5), 81 (in Chinese). 王媛怡,陈亮,汪在芹. 材料导报:综述篇, 2016, 30(5), 81. 13Xu L K, Ma L, Xing S H, et al. Materials China, 2014, 33(2), 106 (in Chinese). 许立坤, 马力, 邢少华, 等. 中国材料进展, 2014, 33(2), 106. 14Shen E B, Fang D J, Wang Y P, et al. Total Corrosion Control, 2013, 27(3), 40 (in Chinese). 沈尔卜, 方达经, 王亚平, 等.全面腐蚀控制, 2013, 27(3), 40. 15Millard S G, Gowers K R, Gill J S. Concrete Structures, 1991, 128, 373. 16Da B, Yu H F, Ma H Y, et al. Construction and Building Materials, 2016, 122, 81. 17Xu C. Electrochemical characteristic and related testing and monitoring technology of the steel corrosion of concrete structures. Ph.D. Thesis, Zhejiang University, China, 2012 (in Chinese). 许晨. 混凝土结构钢筋锈蚀电化学表征与相关检监测技术. 博士学位论文, 浙江大学, 2012. 18He H Z, Cui Y L, Shi M L, et al. Journal of Building Materials, 2013, 16(1), 50 (in Chinese). 贺鸿珠, 崔玉理, 史美伦, 等.建筑材料学报, 2013, 16(1), 50. 19Wei B M. Theory and application of metal corrosion, Chemical Industry Press, China, 1984 (in Chinese). 魏宝明. 金属腐蚀理论及应用, 化学工业出版社, 1984. 20Liang C H. Metal corrosion introduction, China Machine Press, China, 1999 (in Chinese). 梁成浩. 金属腐蚀学导论, 机械工业出版社, 1999. 21Andrade C, Alonso C. Materials and Structures, 2004, 37(11), 623. 22Zhou L N. Electrochemical test and in-situ corrosion monitoring of chloride contaminated reinforced concrete. Master’s Thesis, Harbin Institute of Technology, China, 2011 (in Chinese). 周丽娜. 氯盐污染混凝土钢筋锈蚀的电化学测试及原位监测. 硕士学位论文, 哈尔滨工业大学, 2011. 23Wang Q, Xu G. Concrete, 2007(7), 96 (in Chinese). 王青, 徐港.混凝土, 2007(7), 96. 24Zhao Y L, Gao M, Hu J M, et al. Corrosion Science and Protection Technology, 2016, 28(5), 407 (in Chinese). 赵艳丽, 高 媚, 胡吉明, 等.腐蚀科学与防护技术, 2016, 28(5), 407. 25Chen X B. Corrosion and Protection, 2010, 31(12), 946 (in Chinese). 程晓波. 腐蚀与防护, 2010, 31(12), 946. 26Garca A M C, Escudero M L, Miranda J M, et al. Cement and Concrete Research, 2007, 37, 1463. 27Funahashi M. ACI Materials Journal, 1990, 87(6), 581. 28Zeng C S. Electrochemical research of 316L stainless steel corrosion. Master’s Thesis, Kunming University of Science and Technology, China, 2006 (in Chinese). 曾初升. 316L不锈钢腐蚀性能电化学研究.硕士学位论文, 昆明理工大学, 2006. 29Fan Q Q, Hua L. Corrosion Science and Protection Technology, 2014, 26(2), 178 (in Chinese). 范强强, 华丽. 腐蚀科学与防护技术, 2014, 26(2), 178. 30Li H H, Zhao Y T, Wang H R, et al. Study on corrosion resistance of sherardizing and zinc-chromium coating in marine environment. Equipment Environmental Engineering, 2006, 3(2), 14 (in Chinese). 李海洪, 赵永韬, 王洪仁, 等. 装备环境工程, 2006, 3(2), 14. 31Wang B, Li Z X, Li H, et al. Transactions of the China Welding Institution, 2011, 32(4), 55 (in Chinese). 王斌, 栗卓新, 李红, 等. 焊接学报, 2011, 32(4), 55. 32Kakooei S, Akil H M, Dolati A, et al. Construction and Building Materials, 2012, 35, 564. 33Shi J J. Reinforcement corrosion research effected by load and environment. Ph.D. Thesis, Southeast University, China, 2011 (in Chinese). 施锦杰. 荷载与环境耦合因素作用下混凝土中钢筋锈蚀研究. 博士学位论文, 东南大学, 2011. 34Dhouibi L, Refait P, Triki E, et al. Journal of Materials Science, 2006, 41, 4928. 35Soylev T A, Richardson M G. Construction and Building Materials, 2008, 22, 609.
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2019, Vol. 33 
