کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6718050 | 503529 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Inhibitor evaluation in different simulated concrete pore solution for the protection of steel rebars
ترجمه فارسی عنوان
ارزیابی مهار کننده در محلول های مختلف بتنی شبیه سازی شده برای محافظت از میله های فولادی
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کلمات کلیدی
خوردگی، محلول مایع بتن، بازدارنده مولیبدن سدیم،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
Corrosion of reinforcement steel forms a huge problem worldwide. A possible remedy for this problem is the application of corrosion inhibitors. The purpose of this research is to evaluate different inhibitors for both types of corrosion that can occur in reinforced concrete: pitting corrosion (by chloride attack), and uniform corrosion (by a drop in pH). Potentiodynamic polarization measurements in realistic concrete pore solutions (CPS) revealed three critical situations - representing pitting and uniform corrosion, and the combination - in which the inhibitor needs to act. According to polarization experiments and micrographs Na2MoO4 is the best performing inhibitor for the three cases. Our XPS measurements are in line with the proposed inhibitor mechanism by Vukasovich (1986), which is very complex and depends on whether the surface is active or passive to start with. In conclusion Na2MoO4 is a possible - and environmental-friendly - candidate to prevent corrosion of reinforcement steel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 124, 15 October 2016, Pages 887-896
Journal: Construction and Building Materials - Volume 124, 15 October 2016, Pages 887-896
نویسندگان
Hilke Verbruggen, Herman Terryn, Iris De Graeve,