The influence of the alkaline content of cement on the corrosion kinetics of galvanized reinforcements has been studied, by means of the polarisation resistance method, in saturated solutions of with additions of NaOH, KOH and , thus simulating the liquid phase of concrete.It has been established that below a threshold pH the coating protects the surface; above this pH the coating is attacked, disappearing in a few days. Cements with low alkali contents and proper concrete dosage must therefore be used to ensure that the pH remains below the threshold value.

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Published on 01/01/1983

DOI: 10.1179/000705983798273912
Licence: CC BY-NC-SA license

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