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Passivation Behavior of Steel Bar in Sea Sand Ultra-high Performance Cement Evaluated Using Electrochemical Method
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Jiangang WEI1, 2, Xuehai BIAN1, Wei HUANG1, Rong CHEN1, Baochun CHEN1, Qingwei HUANG1, Jiamin ZHOU1, Yaowen WU1
Journal of the Chinese Ceramic Society | 2020, 48(8) : 1223 - 1232
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Journal of the Chinese Ceramic Society | 2020, 48(8): 1223-1232
• Special Issue for Ultra-high Performance ConcreteⅠ •
Passivation Behavior of Steel Bar in Sea Sand Ultra-high Performance Cement Evaluated Using Electrochemical Method
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Jiangang WEI1, 2, Xuehai BIAN1, Wei HUANG1, Rong CHEN1, Baochun CHEN1, Qingwei HUANG1, Jiamin ZHOU1, Yaowen WU1
Affiliations
  • 1.College of Civil Engineering, Fuzhou University, Fuzhou 350116, China
  • 2.College of Civil Engineering, Fujian University of Technology, Fuzhou 350108, China

    • WEI Jiangang (1971-), male, Ph.D., Researcher. E-mail:

About Author:

WEI Jiangang (1971-), male, Ph.D., Researcher. E-mail:

Published: 2020-08-20 doi: 10.14062/j.issn.0454-5648.20200205
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Ultra-high performance concrete (UHPC) and common mortar were prepared using simulated sea sand at different chloride ion contents. The electrochemical indexes of the internal reinforcement during passivation period were measured by linear polarization resistance (LPR), electrochemical impedance spectroscopy (EIS) and cyclic polarization. The passivation evolution of reinforcement and the effect of chloride ion on the growth of passivation film were investigated, and the passivation behavior difference between UHPC and ordinary mortar was compared. The experiment results show that the corrosion rate of reinforcement in UHPC decreases with the increase of age. The corrosion rate is accelerated, but its effect is limited, and it has no effect on the density of passive film when chloride ion content in sea sand is increased. When the content of chloride ion in the sea sand is below 0.448%, the steel bars could be passivated within 10 d, and the corrosion rate is the similar after passivation.

sea sand  /  ultra high performance concrete  /  steel bar  /  electrochemistry  /  passivation behavior
韦建刚, 卞学海, 黄伟, 陈荣, 陈宝春, 黄卿维, 周佳敏, 吴耀文. 用电化学方法评价海砂超高性能混凝土中钢筋钝化行为. 硅酸盐学报, 2020 , 48 (8) : 1223 -1232 . DOI: 10.14062/j.issn.0454-5648.20200205
Jiangang WEI, Xuehai BIAN, Wei HUANG, Rong CHEN, Baochun CHEN, Qingwei HUANG, Jiamin ZHOU, Yaowen WU. Passivation Behavior of Steel Bar in Sea Sand Ultra-high Performance Cement Evaluated Using Electrochemical Method[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (8) : 1223 -1232 . DOI: 10.14062/j.issn.0454-5648.20200205
Appendix
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Year 2020 volume 48 Issue 8
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Article Info
doi: 10.14062/j.issn.0454-5648.20200205
  • Receive Date：2020-03-23
  • Online Date：2026-10-29
  • Published：2020-08-20
Article Data
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History
  • Received：2020-03-23
  • Revised：2020-04-14
Funding
Affiliations
    1.College of Civil Engineering, Fuzhou University, Fuzhou 350116, China
    2.College of Civil Engineering, Fujian University of Technology, Fuzhou 350108, China

Corresponding:

HUANG Wei (1987-), male, Ph.D., Assistant Researcher. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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