钢筋的腐蚀对钢筋混凝土结构的使用寿命影响极大，外加电流阴极保护系统能较好地控制钢筋锈蚀，尤其适用于沿海地区受氯盐侵蚀所引起的钢筋腐蚀，本工作重点介绍了在沙特波斯湾沿海一座混凝土结构中所采用的外加电流阴极保护情况，以位于取水口和排水口的阴极保护分区为研究对象，在工场现场对保护电流进行了研究，并对相关的技术参数进行了分析。结果显示，在中东严酷海洋腐蚀环境中的钢筋？昆凝土结构，外加电流阴极保护系统给混凝土结构提供相对于钢筋表面电流密度大小为5mA/m2的保护最为合适。
Corrosion of rebar in concrete structure affect its service life greatly, by the impressed current cathodic protection （ICCP） system can solve this problem, especially for the reinforced concrete corrosion caused by chloride ion in coastal areas. The 1CCP system which installed in a concrete structure of the coast of Persian Gulf Saudi Arabia was introduced, and the protection current density was studied. The results showed that in the severe corrosive environment such as the coast areas of Middle East, a current density of 5 mA/m2 was suggested to provide protection for the rebar in concrete structures by the ICCP system
参考文献
| [1] | 陈卫,马化雄,张海军.外加电流阴极保护技术在天津港滚装码头预制梁中的应用[J].中国港湾建设,2006(05):49-51,67. |
| [2] | R. J. Kessler;R. G. Powers;I. R. Lasa .Sacrificial anode protection of an underground steel reinforced concrete structure[J].Materials Performance,1998(3):10-13. |
| [3] | 洪乃丰.混凝土中钢筋腐蚀与防护技术（6）--钢筋阻锈剂和阴极保护[J].工业建筑,2000(01):57-60. |
| [4] | 王伟,季明棠.钢筋混凝土构筑物牺牲阳极保护研究进展[J].海洋科学,2001(05):18-20,33. |
| [5] | J. Flis;H.W. Pickering;K. Osseo-Asare .Assessment of Data from Three Electrochemical Instruments for Evaluation of Reinforcement Corrosion Rates in Concrete Bridge Components[J].Corrosion: The Journal of Science and Engineering,1995(8):602-609. |
| [6] | 胡学文,吴丽蓉,许崇武,黄杰.外加电流阴极保护用辅助阳极的研究现状及发展趋势[J].腐蚀与防护,2000(12):546-549. |
| [7] | 胡卫兵.外加电流阴极防护系统在跨海大桥中的应用[J].建材技术与应用,2006(02):24-25. |
| [8] | 葛燕,朱锡昶.钢筋混凝土阴极保护和阴极防护技术的状况与进展[J].工业建筑,2004(05):18-20,43. |
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