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首页> 外文期刊>Corrosion Science and Technology >Study on the correlation between long-term exposure tests and accelerated corrosion tests by the combined damage of salts
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Study on the correlation between long-term exposure tests and accelerated corrosion tests by the combined damage of salts

机译：通过盐的综合破坏研究长期暴露试验与加速腐蚀试验之间的相关性

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摘要

Interest in the durability assessment and structural performance has increased according to an increase of concrete structures in salt damage environment recent years. Reliable way ensuring the most accelerated corrosion test is a method of performing the rebar corrosion monitoring as exposed directly to the marine test site exposure. However, long-term exposure test has a disadvantage because of a long period of time. Therefore, many studies on reinforced concrete in salt damage environments have been developed as alternatives to replace this. However, accelerated corrosion test is appropriate to evaluate the critical chlorine concentration in the short term, but only accelerated test method, is not easy to get correct answer. Accuracy of correlation acceleration test depends on the period of the degree of exposure environments. Therefore, in this study, depending on the concrete mix material, by the test was performed on the basis of the composite degradation of the salt damage, and investigate the difference of corrosion initiation time of the rebar, and indoor corrosion time of the structure, of the marine environment of the actual environments were inuestigated. The correlation coefficient was derived in the experiment. Long-term exposure test was actually conducted in consideration of the exposure conditions submerged zone, splash zone and tidal zone. The accelerated corrosion tests were carried out by immersion conditions, and by the combined deterioration due to the carbonation and accelerated corrosion due to wet and dry condition.
机译：近年来，随着盐害环境下混凝土结构的增加，人们对耐久性评估和结构性能的兴趣也越来越高。确保钢筋腐蚀加速的一种可靠方法是在直接暴露于海洋试验现场的情况下进行钢筋腐蚀监测。但是，长期的暴露测试由于时间长而具有缺点。因此，已经开发了许多在盐害环境下钢筋混凝土的研究来替代它。但是，加速腐蚀试验适合于短期内评估临界氯浓度，但仅加速试验方法并不容易获得正确答案。相关加速测试的准确性取决于暴露环境程度的周期。因此，在这项研究中，根据混凝土混合材料，通过在盐害的复合降解基础上进行了试验，并研究了钢筋腐蚀起始时间与结构室内腐蚀时间的差异，对海洋环境的实际环境进行了调查。在实验中得出了相关系数。实际上，考虑到淹没区，飞溅区和潮汐区的暴露条件进行了长期暴露测试。加速腐蚀试验是在浸入条件下进行的，并且由于碳化引起的综合劣化和由于干湿条件引起的加速腐蚀一起进行。

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