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首页> 外文会议>NACE annual conference exposition >COMPARISON BETWEEN ELECTROCHEMICAL NOISE AND MEASUREMENTS WITHELECTRICAL RESISTANCE PROBES IN CONCRETE
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COMPARISON BETWEEN ELECTROCHEMICAL NOISE AND MEASUREMENTS WITHELECTRICAL RESISTANCE PROBES IN CONCRETE

机译：混凝土中电化学噪声与测量值与电阻值的比较

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摘要

In the study two different methods were used to monitor corrosion of steel embedded in concrete.rnElectrochemical noise and electrical resistance techniques are frequently used in various industrial fields,rnespecially in the oil and chemical-processing industry, but very rarely in concrete structures. Bothrntechniques were slightly modified and tested in carbonated concrete specimens during successivernwetting (exposure to salt water) and drying cycles. The results of the measurements were compared withrnthe results of corrosion assessments of the rebars after the specimens were disintegrated. It wasrnconfirmed that both methods are effective for measuring corrosion of steel embedded in concrete, andrnsomehow compatible. Electrochemical noise technique can detect various stages of the corrosion processrn(the initiation of corrosion, dynamic behaviour of corrosion during wetting and drying of concrete),rnwhereas electrical resistance probes indicate cumulative corrosion damage. The results of both methodsrnindicated also some general characteristics of corrosion processes in concrete.
机译：在这项研究中，使用了两种不同的方法来监测埋入混凝土中的钢的腐蚀。电化学噪声和电阻技术经常用于各个工业领域，特别是在石油和化学加工行业，但在混凝土结构中却很少。在连续润湿（暴露于盐水）和干燥周期的过程中，对两种技术都进行了轻微修改，并在碳酸混凝土样品中进行了测试。将测量结果与试样分解后钢筋的腐蚀评估结果进行比较。证实了这两种方法对于测量埋在混凝土中的钢的腐蚀都是有效的，并且在某种程度上是兼容的。电化学噪声技术可以检测腐蚀过程的各个阶段（腐蚀的开始，混凝土在润湿和干燥过程中腐蚀的动态行为），而电阻探针则表明累积的腐蚀破坏。两种方法的结果也表明了混凝土腐蚀过程的一些一般特征。

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