The critical chloride content C_crit is an indicator for the corrosion resistance of reinforcing steels in concrete. In this article, several experimental methods for determining the critical chloride content C_crit of mild and an alloyed (12% Cr) steel in cementitious materials are compared. The methods used include accelerated polarization tests and tests using more natural (unpolarized) conditions in which chloride ingress occurs by diffusion and capillary uptake. The advantages and disadvantages of the methods are discussed, in particular, with the objective of reaching a compromise between applicability to practice and feasibility in laboratory testing.

中文翻译：

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评估钢筋在混凝土中抗氯离子腐蚀的方法比较：特别考虑 12% 铬钢

临界氯化物含量C _crit是混凝土中钢筋耐腐蚀性的指标。在本文中，比较了几种确定胶结材料中低碳钢和合金 (12% Cr) 钢的临界氯化物含量C _{crit的实验方法。}使用的方法包括加速极化测试和使用更自然（非极化）条件的测试，其中氯化物通过扩散和毛细吸收发生进入。讨论了这些方法的优点和缺点，特别是为了在实践的适用性和实验室测试的可行性之间达成妥协。