材料科学与工程学报2024，Vol.42Issue(2)：238-245,283,9.DOI:10.14136/j.cnki.issn1673-2812.2024.02.010
基于CT技术的水泥稳定碎石微裂程度控制模型
Micro-cracking Degree Control of Cement Stabilized Macadam Based on CT Technology
摘要
Abstract
To investigate the influence of the void characteristics of cement stabilized macadam(CSM)on the degree of micro-cracking,the void characteristic parameters of CSM specimens after micro-cracking were extracted with the help of CT nondestructive testing technology.Then,the gray entropy correlation was used to explore the influence of the void parameters of CSM on the degree of micro-cracking.Finally,a gray relationship model between the number of voids and the degree of micro-cracking was established.The results showed that the void ratio of the surface and the degree of micro-cracking both increased then decreased with the extension of vibration time.After micro-cracking,the number of voids in the CSM specimens was higher than the nonmicro-cracking specimens,and the micro-cracking effect had the greatest influence on the voids in the area range of 0-0.1 mm2.With the extened vibration time,the percentage of voids in the range of 0-0.2 increased gradually,and the fractal dimension of the voids was larger than the nonmicro-cracking.There is the highest correlation between the degree of micro-cracking and the number of voids.The established GM(1,2)prediction model of the degree of micro-cracking can provide theoretical reference for the research and application of micro-cracking technology for CSM at the fine level.关键词
水泥稳定碎石/CT图像/微裂技术/空隙特征/灰色预测模型Key words
Cement stabilized macadam/CT image/Micro-cracking/Void parameters/Grey prediction model分类
交通工程引用本文复制引用
刘子龙,马士宾,贺苗,梁栋,刘月钊..基于CT技术的水泥稳定碎石微裂程度控制模型[J].材料科学与工程学报,2024,42(2):238-245,283,9.基金项目
国家自然科学基金面上资助项目(51978236) （51978236）
天津市交通运输科技发展资助项目(2022-01) （2022-01）
