کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6713709 | 1428733 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Corrosion mitigation of steel rebars in chloride contaminated concrete pore solution using inhibitor: An electrochemical investigation
ترجمه فارسی عنوان
کاهش خوردگی ریل های فولادی در محلول مایع بتن آلودگی کلریدی با استفاده از مهارکننده: بررسی الکتروشیمیایی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
Inhibitor is one of the most accepted method to reduce, prolong the initiation of steel corrosion and increase the threshold value of Clâ and CO32â ions. In present study, we have mixed sodium salt of phosphate and benzoate along with benzo triazole in water to prepare the inhibitor. Open circuit potential (OCP) results show that 5 v/v% inhibitor was exhibited most positive (nobler) potential than others at its prolonged exposure in simulated concrete pore (SCP)â¯+â¯3.5â¯wt% NaCl solution. The OCP of 3 and 5% inhibitor containing solution proved that these concentrations are away from under corrosion region of steel rebar even after 192â¯h of exposure in SCPâ¯+â¯3.5â¯wt% NaCl solution. Electrochemical impedance spectroscopy (EIS) results show that the charge transfers resistance (Rct) to be highest for 5% inhibitor and gradually decreased once the concentration was reduced with exposure periods. Potentiodynamic studies reveal that inhibitor shows passive properties due to adsorption of inhibitor molecules on steel surface and enhance the corrosion resistance properties. The efficiency was calculated using Rct and corrosion current density (Icorr) process and found that 3 and 5% inhibitor exhibit around 89 and 96%, respectively after 1â¯h of exposure in SCPâ¯+â¯3.5â¯wt% NaCl solution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 173, 10 June 2018, Pages 443-451
Journal: Construction and Building Materials - Volume 173, 10 June 2018, Pages 443-451
نویسندگان
Han-Seung Lee, Hyun-Min Yang, Jitendra Kumar Singh, Shailesh Kumar Prasad, Bongyoung Yoo,