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Electrochemical Analysis of Passivation Film Formation on Steel Rebar in Concrete

机译:混凝土中钢筋上钝化膜形成的电化学分析

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In this article, the passivation film of rebar was formed using cyclic voltammetry (CV) on reinforcedconcrete. The detail composition of the passivation film was analyzed by X-ray photoelectronspectroscopy. The electrochemical properties of the passivation film formed using the CV methodwere compared with the naturally formed passivation film. Study showed the properties of thepassivation film could be affected by the chloride ions concentration and the electrolyte pH value.More oxidized passivation film could be formed when the presence of the chloride ions. Meanwhile,the decreasing of the pH value could enhance the content of chromium in the film and reduce themagnetite.
机译:在本文中,钢筋的钝化膜是使用循环伏安法(CV)在钢筋混凝土上形成的。通过X射线光电子能谱分析钝化膜的细节组成。将使用CV方法形成的钝化膜的电化学性能与自然形成的钝化膜进行了比较。研究表明,钝化膜的性能受氯离子浓度和电解液pH值的影响。氯离子的存在会形成更多的氧化钝化膜。同时,降低pH值可以提高薄膜中铬的含量,减少磁铁矿。

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