کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4912954 | 1428753 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental comparison of corrosion unevenness and expansive cracking between accelerated corrosion methods used in laboratory research
ترجمه فارسی عنوان
مقایسه تجربی ناهماهنگی خوردگی و ترک خوردگی گسترده بین روش های خوردگی شتابدهنده مورد استفاده در تحقیقات آزمایشگاهی
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کلمات کلیدی
بتن آرمه، خوردگی سریع توزیع غیر یکنواخت، کرک انبساطی،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
Eight reinforced concrete (RC) slabs were prepared and corroded using different accelerated corrosion setups including full-immersion, half-immersion, and wet-dry cycling, aiming to investigate their differences in terms of non-uniform corrosion distribution and expansive crack opening. Embedded steel bars were retrieved and cleaned before scanning into 3D models using a laser instrument to facilitate precise geometric measurement. Non-uniform corrosion is quantitatively characterized by a parameter Rn, whose asymptotic distributions belong to the domain of attraction of general extreme value (GEV) distribution. The results show that full-immersion method is less promising, because it generated the slightest non-uniform corrosion and expansive crack opening. The half-immersion method could be used in the research focusing merely on corroded steel bars as it led to serious non-uniform corrosion but less severe expansive cracking. Wet-dry cycling seems to be the best, whereas the impressed current density is recommended to be kept below 50 μA/cm2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 153, 30 October 2017, Pages 36-43
Journal: Construction and Building Materials - Volume 153, 30 October 2017, Pages 36-43
نویسندگان
Xiaogang Wang, Xiaowei Song, Moping Zhang, Xiangbo Du,