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首页> 外文会议>International Workshop On Measurement and Interpretation of the On-site Corrosion Rate MESINA Feb 22-23, 1999, Madrid, Spain >ON SITE CORROSION MEASUREMENTS IN STRUCTURES UNDER DIFFERENT EXPOSURE CONDITIONS
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ON SITE CORROSION MEASUREMENTS IN STRUCTURES UNDER DIFFERENT EXPOSURE CONDITIONS

机译：不同暴露条件下结构的现场腐蚀测量

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摘要

This paper presents the results from on site corrosion measurements obtained during the inspection prior to repairing of four reinforced concrete structures exposed to different aggressive environments. For each case, after a general description of the structures, a presentation is made of the values obtained for corrosion potential and corrosion rate determined by measuring the polarisation resistance, using the GEOCOR 6, an equipment with a guard ring for current confinement. For a better interpretation, some results are also presented concerning the chloride content and carbonation depth in concrete and concrete cover depth. From the experience obtained it could be concluded that polarisation resistance is a very sensitive technique to measure corrosion rate in concrete. However it is yet difficult to establish universal ranges for quantification of corrosion rate, since the values depend very much of the humidity and chloride penetration in concrete or carbonation.
机译：本文介绍了在修理暴露于不同侵蚀性环境的四个钢筋混凝土结构之前，在检查过程中获得的现场腐蚀测量结果。对于每种情况，在对结构进行总体描述之后，将介绍通过使用GEOCOR 6（带有用于电流限制的保护环的设备）测量极化电阻而获得的腐蚀电位和腐蚀速率的值。为了更好地解释，还给出了有关混凝土中的氯化物含量和碳化深度以及混凝土覆盖层深度的一些结果。根据获得的经验，可以得出结论，抗极化性是测量混凝土腐蚀速率的非常灵敏的技术。然而，由于腐蚀速率很大程度上取决于混凝土或碳化中的湿度和氯化物渗透率，因此很难建立通用的腐蚀速率范围。

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