دورية أكاديمية
Influence of Wind Pressure on the Carbonation of Concrete
| العنوان: | Influence of Wind Pressure on the Carbonation of Concrete |
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| المؤلفون: | Dujian Zou, Tiejun Liu, Chengcheng Du, Jun Teng |
| المصدر: | Materials, Vol 8, Iss 8, Pp 4652-4667 (2015) |
| بيانات النشر: | MDPI AG, 2015. |
| سنة النشر: | 2015 |
| المجموعة: | LCC:Technology LCC:Electrical engineering. Electronics. Nuclear engineering LCC:Engineering (General). Civil engineering (General) LCC:Microscopy LCC:Descriptive and experimental mechanics |
| مصطلحات موضوعية: | concrete, carbonation, penetration mass transfer, wind pressure, Klinkenberg effect, Technology, Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Engineering (General). Civil engineering (General), TA1-2040, Microscopy, QH201-278.5, Descriptive and experimental mechanics, QC120-168.85 |
| الوصف: | Carbonation is one of the major deteriorations that accelerate steel corrosion in reinforced concrete structures. Many mathematical/numerical models of the carbonation process, primarily diffusion-reaction models, have been established to predict the carbonation depth. However, the mass transfer of carbon dioxide in porous concrete includes molecular diffusion and convection mass transfer. In particular, the convection mass transfer induced by pressure difference is called penetration mass transfer. This paper presents the influence of penetration mass transfer on the carbonation. A penetration-reaction carbonation model was constructed and validated by accelerated test results under high pressure. Then the characteristics of wind pressure on the carbonation were investigated through finite element analysis considering steady and fluctuating wind flows. The results indicate that the wind pressure on the surface of concrete buildings results in deeper carbonation depth than that just considering the diffusion of carbon dioxide. In addition, the influence of wind pressure on carbonation tends to increase significantly with carbonation depth. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1996-1944 |
| Relation: | http://www.mdpi.com/1996-1944/8/8/4652; https://doaj.org/toc/1996-1944 |
| DOI: | 10.3390/ma8084652 |
| URL الوصول: | https://doaj.org/article/bce5ff8aa3404675b092f71fce7ff4c3 |
| رقم الأكسشن: | edsdoj.bce5ff8aa3404675b092f71fce7ff4c3 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 19961944 |
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| DOI: | 10.3390/ma8084652 |