کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1470632 990330 2010 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of steel–concrete interface condition on galvanic corrosion currents in carbonated concrete
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Influence of steel–concrete interface condition on galvanic corrosion currents in carbonated concrete
چکیده انگلیسی

This paper presents specific experiments which were developed in order to assess galvanic currents in macrocell corrosion specimens involving active steel in carbonated concrete and passive steel in sound concrete. The influence of the steel–concrete interface condition on the galvanic current was also experimentally investigated. To focus on macrocell corrosion rate assessment, the initiation time of the corrosion process (concrete carbonation) was accelerated. FEM simulations were carried out in order to enhance the physical comprehension of these corrosion experiments. It was found that, in realistic condition, the electrical coupling of active and passive steel areas leads to high galvanic currents and consequently high corrosion levels according to RILEM recommendation. Moreover, steel–concrete interfacial defaults significantly increase the macrocell driving potential and, therefore, the galvanic corrosion current.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 52, Issue 9, September 2010, Pages 2878–2890
نویسندگان
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