摘要
用分形理论对沥青混合料中粗集料骨架间隙的特征进行了分析评价。通过对混合料试件的切割获取截面图像,应用数字图像处理技术,得到粗集料骨架间隙的分形维数,提出了计算方法。以FAC-20为例,计算了原始试件和车辙试验中不同加载时段粗集料骨架间隙分形维数的变化情况,在粗集料骨架间隙的分形维数与力学性能之间建立了联系。
According to fractal theory, the characteristics of voids in coarse mineral aggregate in asphalt mixtures （VCA） were analyzed and evaluated in this paper. The sectional images were acquired by cutting specimen. The fractal dimension of VCA was obtained by applying digital image processing technique, and a calculation method was put forward. By taking FAC-20 as an example, the fractal dimension changes of VCA of original specimens and different loaded time after rutting test were calculated, and the relation was established between the fractal dimension of VCA and mechanics performance of asphalt mixture.
出处
《交通与计算机》
2008年第2期35-37,共3页
Computer and Communications
基金
广东省自然科学基金-博士启动基金项目资助(批准号:B04B6050530)
关键词
道路工程
沥青混合料
车辙试验
数字图像处理
分形维数
road engineering
asphalt mixtures
rutting test
digital image processing
fractal dimension
