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 >SENSITIVITY AND RELIABILITY OF EMBEDDED POLARIZATION RESISTANCE PROBES IN CONCRETE STRUCTURES: FULL SCALE AND LABORATORY EXPERIENCES
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SENSITIVITY AND RELIABILITY OF EMBEDDED POLARIZATION RESISTANCE PROBES IN CONCRETE STRUCTURES: FULL SCALE AND LABORATORY EXPERIENCES

机译:混凝土结构中嵌入极化电阻问题的敏感性和可靠性:全尺寸和实验室经验

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摘要

Reliability of polarization resistance (Rp) probes embedded in reinforced concrete structures has been evaluated. Corrosion initiation and repassivation during the evolution of localized corrosion processes significantly influence corrosion rate (CR) measurements. Evaluation by visual observation of the actual condition of metal surface after corrosion tests emphasized once again the issue of CR interpretation in view of structure service life assessment. Results obtained in laboratory on bench scale concrete samples were critically compared with measurements carried out on real scale applications on reinforced concrete structures built along the E62 and E25 Italian highways.
机译:已经评估了嵌入钢筋混凝土结构中的极化电阻(Rp)探针的可靠性。局部腐蚀过程演变过程中的腐蚀引发和再钝化会显着影响腐蚀速率(CR)的测量。通过目视观察腐蚀试验后金属表面的实际状况进行评估,再次强调了从结构使用寿命评估的角度来解释CR的问题。将实验室在实验室规模的混凝土样品上获得的结果与在沿意大利E62和E25高速公路建造的钢筋混凝土结构上的实际规模应用中进行的测量结果进行了严格的比较。

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