کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1454413 1509668 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Protection of reinforcement steel corrosion by phenylphosphonic acid pre-treatment PART II: Tests in mortar medium
ترجمه فارسی عنوان
حفاظت از خوردگی فولاد تقویت شده قبل از درمان اسید فنیل فسفونیک. قسمت دوم: آزمایشات در محیط ملات
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی

A pre-treatment of steel reinforcement in mortar by a 72 h immersion in 0.1 M phenyl-phosphonic acid (C6H5P(O)(OH)2; PPA) was investigated. Then effectiveness of this procedure for protection against the corrosion of steel bars embedded in pre- or post-addition of sodium chloride mortar was evaluated by electrochemical impedance spectroscopy, visual inspection, SEM, and EDS analyses.The results showed that for non-treated steel reinforcement, the charge transfer resistance (Rt) decreases considerably with time indicating a very advanced state of corrosion after 54 months corrosion test. In contrast, for pre-treated steel rebar, this resistance remains high reflecting the effectiveness of the pre-treatment method against corrosion. The corrosion rate evaluated from the charge transfer resistance at 54 months corrosion in chloride containing medium was 0.5 μm year−1.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Composites - Volume 65, January 2016, Pages 94–100
نویسندگان
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