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中文摘要：
基于金属极化理论，分析了外加电场电压对于钢筋钝化膜的影响。明确了外加电场电压的合理取值，并提出了连续通电条件下的钢筋脱钝判别依据。设计了电场加速条件下氯离子阈值快速测定以及自然渗透法氯离子阈值测定对比试验。结果表明，快速试验测试得到的氯离子闽值略小于自然渗透法得到的值，两者比值约为1．261，从而验证了该测定方法的可行性。
英文摘要：
Based on metal polarization theory, the influence of external electric field voltage on the passive film of reinforcement was studied through experimental analysis. By defining the reasonable value of the voltage applied by electric field, discrimination method of steel depassivition under continuous de-energized condition was proposed. An rapid test to determine chloride threshold under field conditions was designed, for comparison, a normal test to determine chloride threshold by the natural chloride penetration was also carried out correspondingly. The results showed that chloride threshold determined by rapid test was slightly smaller than the value determined by the natural penetration test, the ratio was about 1.261, which verified the feasibility of this test method.
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