کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1469796 990309 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Non-uniform distribution of rust layer around steel bar in concrete
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Non-uniform distribution of rust layer around steel bar in concrete
چکیده انگلیسی

The thickness of rusted layers at steel/concrete interface from a chloride-exposed reinforced concrete specimen was observed by digital microscopy. The non-uniform corrosion front is presented by a Gaussian function, the parameters in the model, including the non-uniformity coefficient, the spread coefficient, and the uniformity coefficient, are studied to describe the non-uniform distribute characters of rust layer. Comparing with the models proposed by other researchers, the Gaussian model can describe the non-uniform rust layer better. The location of corrosion peak along the perimeter of rebar and the condition for corrosion spreading across the entire circumference of rebar are discussed.


► The thickness of rust layer deposited on the circumference of a steel bar in concrete is presented by a Gaussian function.
► The parameters in the Gaussian model can describe the non-uniform distribute characters of rust layer.
► Steel corrosion spreading across the entire circumference of rebar happens after concrete surface cracking.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 53, Issue 12, December 2011, Pages 4300–4308
نویسندگان
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