کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6723851 503603 2014 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Practical model for predicting corrosion rate of steel reinforcement in concrete structures
ترجمه فارسی عنوان
مدل عملی برای پیش بینی میزان خوردگی تقویت فولاد در سازه های بتنی
کلمات کلیدی
بتن آرمه، نرخ خوردگی، مقاومت بتن، ضخامت پوشش، نسبت آب به سیمان، محتوای کلرید، رطوبت نسبی،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
A practical model for predicting the corrosion rate of steel reinforcement in concrete structures was proposed. The numerical model with nonlinear boundary conditions for the macrocell corrosion of steel reinforcement in concrete structures was established based on the electrochemical principles and the Bulter-Volmer equation. The influences of various parameters such as anode-to-cathode (A/C) ratio, relative humidity, concrete resistivity, cover thickness on the corrosion control mode and corrosion rate of steel reinforcement in concrete structures were then investigated. Finally, a practical model for predicting the corrosion rate of steel reinforcement in concrete structures was proposed based on a comprehensive nonlinear regression analysis with easily quantifiable engineering parameters, such as water-to-cement (W/C) ratio, chloride content, thickness of concrete cover and relative humidity. Model comparison and experimental verification demonstrate that the proposed prediction model is of good accuracy and applicability to real life scenarios in terms of capturing the corrosion behavior of steel reinforcement in different situations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 54, 15 March 2014, Pages 385-401
نویسندگان
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