...
首页> 外文期刊>Magazine of Concrete Research >Microcell versus galvanic corrosion currents in carbonated concrete
【24h】

Microcell versus galvanic corrosion currents in carbonated concrete

机译:碳酸混凝土中的微孔与电流腐蚀电流

获取原文
获取原文并翻译 | 示例
           

摘要

This paper presents specific experiments developed to assess galvanic corrosion currents in carbonated concrete. The work investigated the influence of both the steel-concrete interface condition and the cathodic to anodic surface ratio. Galvanic corrosion currents were compared with microcell corrosion currents. In the quasi-saturated condition, galvanic corrosion currents were systematically found to be much higher than microcell corrosion currents. Moreover, the presence of defects at the interface between the anodic steel surface and concrete leads to a significant increase in the macrocell driving potential and, therefore, in the galvanic corrosion current. Furthermore, the galvanic current density strongly increased with increasing cathodic to anodic surface ratio. The coupling of a high cathodic to anodic surface ratio and the presence of steel-concrete interface defects at the anodic surface leads to huge galvanic corrosion current densities.
机译:本文介绍了评估碳酸盐混凝土中电偶腐蚀电流的具体实验。这项工作研究了钢-混凝土界面条件以及阴极与阳极表面比率的影响。将电腐蚀电流与微电池腐蚀电流进行了比较。在准饱和条件下,系统地发现电腐蚀电流远高于微电池腐蚀电流。而且,在阳极钢表面和混凝土之间的界面处存在缺陷导致宏电池驱动电势的显着增加,因此导致电腐蚀电流的显着增加。此外,电流电流密度随着阴极与阳极表面比率的增加而大大增加。较高的阴极与阳极表面比率以及在阳极表面处存在钢-混凝土界面缺陷的耦合导致巨大的电流腐蚀电流密度。

著录项

  • 来源
    《Magazine of Concrete Research》 |2014年第14期|697-707|共11页
  • 作者单位

    Centre for Infrastructure Engineering and Safety (CIES), UNSW, Sydney, Australia;

    Universite de Toulouse, UPS, INSA, LMDC (Laboratoire Materiaux et Durabilite des Constructions), Toulouse, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号