| 电迁移加速氯盐传输作用下混凝土中钢筋锈蚀 |
| |
| 引用本文： | 施锦杰,孙伟.电迁移加速氯盐传输作用下混凝土中钢筋锈蚀[J].东南大学学报(自然科学版),2011,41(5):1042-1047. |
| |
| 作者姓名： | 施锦杰 孙伟 |
| |
| 作者单位： | 东南大学江苏省土木工程材料重点实验室,南京,211189 |
| |
| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目(2009CB623203); 国家高技术研究发展计划(863计划)资助项目(2008AA030704); 东南大学优秀博士学位论文基金资助项目(YBJJ1017) |
| |
| 摘 要： | 采用电迁移氯离子法加速了混凝土中钢筋的锈蚀过程.应用腐蚀电位、线性极化法、电化学阻抗谱法和循环极化法对比了C50与C80混凝土试件中钢筋的锈蚀行为.比较了混凝土保护层的开裂情况和钢筋的腐蚀形貌.分析结果表明:掺硅灰的C80试件具有优化的孔结构和较大的电阻率,显著延缓了氯离子到达钢筋表面的时间,因而表现出较好的耐蚀性;而...
|
| 关 键 词： | 电迁移氯离子 钢筋锈蚀 混凝土 电化学方法 |
Investigation of steel corrosion induced by accelerated chloride migration in concrete |
| |
| Shi Jinjie,Sun Wei.Investigation of steel corrosion induced by accelerated chloride migration in concrete[J].Journal of Southeast University(Natural Science Edition),2011,41(5):1042-1047. |
| |
| Authors: | Shi Jinjie Sun Wei |
| |
| Institution: | Shi Jinjie Sun Wei(Jiangsu Key Laboratory of Construction Materials,Southeast University,Nanjing 211189,China) |
| |
| Abstract: | In order to accelerate the steel corrosion process in concrete,chloride migration method was employed.Electrochemical methods,such as corrosion potential,linear polarization resistance(LPR),electrochemical impedance spectroscopy(EIS) and cyclic polarization,were used to compare the different corrosion behaviors of steel in C80 and C50 concrete specimens.The cover cracks induced by steel corrosion were also compared as well as the visual inspection of the corrosion morphology of steel in broken specimens.The... |
| |
| Keywords: | chloride migration steel corrosion concrete electrochemical methods |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
