Specimen preparation and image processing and analysis techniques for automated quantification of concrete microcracks and voids

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• 作者：Soroushian ; Parviz ; Elzafraney ; Mohamed ; Nossoni ; Ali
• 关键词：Concrete ; Specimen preparation ; Microscopy ; Image processing ; Image analysis
• 刊名：Cement and Concrete Research
• 出版年：2003
• 期刊代码：12_00088846
• 类别：ms
• 出版时间：December, 2003
• 卷：33
• 期：1
• 页码：1949-1962
• 文件大小：1.07 M

摘要

Specimen preparation and image processing/analysis techniques were developed for use in automated quantitative microstructural investigation of concrete, focusing on concrete microcracks and voids. Different specimen preparation techniques were developed for use in fluorescent and scanning electron microscopy (SEM) of concrete; then techniques produce a sharp contrast between microcracks/voids and the body of concrete. The image processing/analysis techniques developed specifically for use with concrete address the following usages: automatic threshold; development of intersecting microcracks/voids and connected voids; distinction of microcracks form voids based on geometric attributes; and noise filtration.