کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
307753 | 513399 | 2010 | 12 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Influence of weather and global warming in chloride ingress into concrete: A stochastic approach Influence of weather and global warming in chloride ingress into concrete: A stochastic approach](/preview/png/307753.png)
Reinforced concrete (RC) structures are subjected to environmental actions affecting their performance, serviceability and safety. Among these actions, chloride ingress leads to corrosion and has been recognized as a critical factor reducing service life of RC structures. This paper presents a stochastic approach to study the influence of weather conditions and global warming on chloride ingress into concrete. The assessment of chloride ingress is carried out on the basis of a comprehensive model that couples the effects of convection, chloride binding, concrete aging, temperature and humidity. A simplified model of temperature and humidity including seasonal variations and global warming is also proposed in this work. Three scenarios of global warming are defined based on: gas emissions, global population growth, introduction of new and clean technologies and use of fossil sources of energy. The proposed approach is illustrated by a numerical example where the preliminary results indicate that climate changes may yield to significant lifetime reductions.
Journal: Structural Safety - Volume 32, Issue 4, July 2010, Pages 238–249