沥青混合料破损动态识别研究进展  

Advances on dynamic discrimination of asphalt mixture damage

作　　者：李晓军[1] 张肖宁[1] 

机构地区：[1]华南理工大学交通学院,广东广州510640

出　　处：《长安大学学报（自然科学版）》2003年第6期11-14,共4页Journal of Chang’an University(Natural Science Edition)

基　　金：国家自然科学基金项目(50078023)

摘　　要：论述了利用可进行CT扫描的三轴仪进行沥青混合料破损过程动态识别的研究进展,探讨了利用CT技术进行沥青混合料内部结构定量分析的方法,提出了基于CT图像评价混合料内部破损状态的参数和算法。结果表明,沥青混合料的性能既受沥青、集料和孔隙的体积含量影响,也受这些因素的空间分布影响。The research advances on damage discrimination of asphalt mixture with a set of modified triaxial compression appartus which can do CT(Xray Computerized Tomography) scan during different damage process were presented.The methods for quantitatively analyzing the microstructure of asphalt mixture were discussed.Parameters and algorithm were also presented for evaluating inner damage state of asphalt mixture on the basis of CT images.The results indicated that the property of asphalt mixture is not only affected by the volume fractions of these components but also the spacial distrubutions of these components.

关 键 词：沥青混合料破损 动态识别 道路工程 CT技术 三轴仪 

分 类 号：U414[交通运输工程—道路与铁道工程]