Research on the Corrosion Damage Mechanism of Concrete in Two Freeze–Thaw Environments
المؤلفون المشاركون
Zhang, Min
Yao, Xianhua
Guan, Junfeng
Li, Lielie
Bai, Weifeng
Liu, Zepeng
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-10-08
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
This study aims to investigate the effects of two freeze–thaw environments (i.e., maintenance freeze-thaw (MFT) environment and immersion freeze-thaw (IFT) environment) on the durability performance, deterioration rules, and mechanisms of concrete.
In MFT, the concrete specimens were firstly cured in the standard curing environment (temperature, 20 ± 3, humidity, not less than 95%, and ages, 28 d) and then were carried out in freeze–thaw environment, while in IFT, the concrete specimens were firstly cured in the salt (NaHCO3, NaCl, and Na2SO4) immersion environment for 90 d and then were carried out in freeze–thaw environment.
In this study, the damage features, relative dynamic elastic modulus, mass changes, and erosion-resistance coefficient of concrete have been measured.
Thereafter, using the scanning electron microscopy (SEM) and the mercury intrusion porosimetry (MIP), the air-void structure parameters and the microstructures have been measured, respectively.
The results show that the relative dynamic elastic modulus and the erosion-resistance coefficient of the compressive strength of the concrete in the IFT environment are, respectively, 14.3% and 21.0% higher than those of the concrete in the MFT environment.
In addition, the results of the microstructure analyses show that the corrosion damages of the concrete are mainly caused by the combined action of the corrosion products of ettringite and freeze–thaw environment.
However, the damage to the concrete in the MFT environment is more serious than that in the IFT environment.
The results of the MIP analysis show that the harmful pore value for the concrete in the MFT environment is almost two times larger than that for the concrete in the IFT environment.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Yao, Xianhua& Zhang, Min& Guan, Junfeng& Li, Lielie& Bai, Weifeng& Liu, Zepeng. 2020. Research on the Corrosion Damage Mechanism of Concrete in Two Freeze–Thaw Environments. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1123682
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Yao, Xianhua…[et al.]. Research on the Corrosion Damage Mechanism of Concrete in Two Freeze–Thaw Environments. Advances in Civil Engineering No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1123682
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Yao, Xianhua& Zhang, Min& Guan, Junfeng& Li, Lielie& Bai, Weifeng& Liu, Zepeng. Research on the Corrosion Damage Mechanism of Concrete in Two Freeze–Thaw Environments. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1123682
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1123682
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر