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电化学修复后钢筋极化状态分析
  • ISSN号:1005-4537
  • 期刊名称:《中国腐蚀与防护学报》
  • 时间:0
  • 分类:TG174.1[金属学及工艺—金属表面处理;金属学及工艺—金属学]
  • 作者机构:[1]浙江大学结构工程研究所,杭州310058, [2]浙江大学宁波理工学院,宁波315800
  • 相关基金:国家科技部项目(S2011Z10100)和国家自然科学基金重大国际合作项目(50920105806)资助
中文摘要:

利用阳极极化曲线(APC)研究模拟孔隙液中电化学修复方法对钢筋极化参数的影响。结果表明,通电结束2h后钢筋阳极极化电流和电位较通电前均有较大变化:通电量P越大,阳极极化电流增大越多,钢筋电位降低越多。此后,阳极极化电流和钢筋电位开始回落,向通电前水平恢复,即有个去极化过程,去极化过程需要约42d完成。钢筋去极化稳定后,其阳极极化电流和极化面积较通电前有所增大,是通电前的2~5倍;钢筋电位则回落到通电前水平。

英文摘要:

Different researchers make different conclusions on the reinforcement corrosion parameters after electrochemical repair. In order to give a reasonable explanation of the phenomenon, anodic polarization curve (APC) is employed to study the effects of electrochemical repair methods on polarization parameters of reinforced in simulated pore solution. The results show that the effects of different treatment duration and current density on the anodic polarization current and potential of the reinforced after various treatments. After the treatment, the anodic polarization current and reinforcement potential change a lot: the greater the power, the more the increase of anodic polarization current, the more the reduction of reinforcement potential. Over time, this change gradually weakens until smooth, which is a depolarization process, and usually takes 42 days. After depolarization, the polarization current of the reinforced is still relatively large compared with that before the treatment, usually 2-5 times, that shows the treatment can increase the polarization area of the reinforced, also 2-5 times; however, reinforcement potential changes little. By analysis of surface morphology of the reinforced, it is found that the surface of the reinforced becomes rougher after treatment, surface area increasing will make the polarization area increase, which is a reasonable interpretation of polarization current increasing after treatment.

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期刊信息
  • 《中国腐蚀与防护学报》
  • 北大核心期刊(2011版)
  • 主管单位:中国科技协会
  • 主办单位:中国腐蚀与防护学会 中国科学院金属研究所
  • 主编:柯伟
  • 地址:沈阳市文化路72号
  • 邮编:110016
  • 邮箱:jcscp@imr.ac.cn
  • 电话:024-23971819
  • 国际标准刊号:ISSN:1005-4537
  • 国内统一刊号:ISSN:21-1474/TG
  • 邮发代号:
  • 获奖情况:
  • 国内外数据库收录:
  • 美国化学文摘(网络版),荷兰文摘与引文数据库,美国剑桥科学文摘,英国科学文摘数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版)
  • 被引量:7982