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首页> 外文会议>4th International Moratuwa Engineering Research Conference >Modelling of Corrosion Induced Cover Cracking in Concrete with Exposed Reinforcement
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Modelling of Corrosion Induced Cover Cracking in Concrete with Exposed Reinforcement

机译：外露钢筋对混凝土腐蚀引起的覆盖裂纹的建模

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摘要

Although reinforced concrete is the mostly widely used construction material, it presents some inherent durability problems. Corrosion of reinforcement is one such issue that researchers across several generations have tried to assess and attenuate. Though different forms of corrosion have been studied, there is not much reported research on the corrosion (and its propagation) of reinforcement embedded in concrete with one end directly exposed to aggressive agents. This phenomenon is explored in this paper through numerical and experimental approaches. The experimental procedure was designed so that accelerated corrosion was induced while the resulting strain values were monitored. Simultaneously a conceptual numerical model was developed to capture the incremental corrosion propagation. A reasonable comparison between the experiment and numerical model is demonstrated, although the observed differences are also discussed.
机译：尽管钢筋混凝土是最广泛使用的建筑材料，但它存在一些固有的耐久性问题。钢筋腐蚀就是这样一个问题，几代人的研究人员都试图对其进行评估和衰减。尽管已经研究了不同形式的腐蚀，但是对埋入混凝土中的钢筋的腐蚀（及其传播）的研究还很少，而其一端直接暴露于侵蚀剂中。本文通过数值和实验方法探讨了这种现象。设计了实验程序，以便在监控所得应变值的同时诱发加速腐蚀。同时，开发了一个概念性的数值模型来捕获腐蚀的增量传播。尽管还讨论了观察到的差异，但仍证明了实验与数值模型之间的合理比较。

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