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Composition and expansion coefficient of rust based on X-ray diffraction arid thermal analysis

机译:基于X射线衍射和热分析的铁锈成分和膨胀系数

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摘要

Corrosion production can make cracks in the concrete cover. Because their volumes are higher than that of the original metal. Therefore, the rust expansion coefficient is one of the key parameters in concrete cracking model caused by steel corrosion. X-ray diffraction and the thermal analysis were used to characterize eight corrosion products collected from various different environments. The results show that the compositions and the expansion coefficients for rust samples are different due to their different servicing environments. The rust expansion coefficients corresponding to the different environments were proposed, which can be applied to steel corrosion induced concrete cracking model.
机译:腐蚀的产生会导致混凝土表层出现裂缝。因为它们的体积高于原始金属的体积。因此,锈胀系数是钢筋腐蚀引起的混凝土开裂模型的关键参数之一。 X射线衍射和热分析用于表征从各种不同环境收集的八种腐蚀产物。结果表明,由于锈蚀样品的使用环境不同,其成分和膨胀系数也有所不同。提出了不同环境下的锈胀系数,可应用于钢腐蚀引起的混凝土开裂模型。

著录项

  • 来源
    《Corrosion science》 |2011年第5期|p.1646-1658|共13页
  • 作者单位

    Institute of Structural Engineering, Zhejiang University, Hangzhou 310058, China;

    Institute of Structural Engineering, Zhejiang University, Hangzhou 310058, China;

    Institute of Structural Engineering, Zhejiang University, Hangzhou 310058, China;

    Institute of Structural Engineering, Zhejiang University, Hangzhou 310058, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    A. Steel reinforced concrete; B. X-ray diffraction; C. Rust;

    机译:A.钢筋混凝土;B. X射线衍射;C.锈;

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