重庆大学学报2017，Vol.40Issue(8)：99-108,10.DOI:10.11835/j.issn.1000-582X.2017.08.012
腐蚀砂浆锚固体形貌特征及分形维数
Mortar anchor solid's corrosion morphology characteristics and fractal dimension
摘要
Abstract
Based on the scanning electron microscope(SEM) images taken from the mortar anchor corrosion experiment,we extracted the mortar anchors' microscopic morphology characteristics by image processing technology first,and quantitatively described the morphology characteristics by fractal theory.Then the relationship between the fractal dimension and the macroscopic bond strength of mortar anchor was established.Finally,the mercury intrusion test was applied to analyze the results of SEM image processing.The results show that,as the corrosion time gets longer,the anchor's porosities under both force conditions and non-force conditions linearly increase,but the pore number and the pore fractal dimension gradually reduce,and the relationship between fractal dimension and porosity is almost negatively linear.As the fractal dimension decreases,the bond strength of mortar anchor increases first,and then decreases.The results comparison of mercury intrusion test and the image processing shows that the inaccuracy is within the range of 5 ％ to 7 ％.关键词
图像处理/砂浆锚固体/孔隙率/分形维数/腐蚀Key words
image processing/mortar anchor/porosity/fractal dimension/corrosion分类
建筑与水利引用本文复制引用
王桂林,李天琦,季希..腐蚀砂浆锚固体形貌特征及分形维数[J].重庆大学学报,2017,40(8):99-108,10.基金项目
重庆市国土资源和房屋管理局科技计划项目(2015003).Supported by Science and Technology Program of Chongqing Administration of Land,Resources,and Housing (2015003). （2015003）
