[1]刘建勋,李波..基于级配分形的SUPERPAVE混合料设计参数预估[J].郑州大学学报(工学版),2010,31(01):29.
　LIU Jianxun,LI Bo.Prediction of Design Parameters for SUPERPAVE Mixtures Basedon the Fractal Law of Aggregate Gradation[J].Journal of Zhengzhou University (Engineering Science),2010,31(01):29.
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基于级配分形的SUPERPAVE混合料设计参数预估()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
31
期数:
2010年01期
页码:
29
栏目:
出版日期:
2010-01-30

文章信息/Info

Title:
Prediction of Design Parameters for SUPERPAVE Mixtures Basedon the Fractal Law of Aggregate Gradation
作者:
刘建勋; 李波.
长安大学公路学院,陕西,西安,710064;甘肃路桥建设集团有限公司,甘肃,兰州,730030
Author(s):
LIU Jianxun; LI Bo
1．School of Highway Engineering，Chang’an University，Xi’an 710064。China；2．Oansu Road and Bridge Construction GroupCo．Ltd．，Lanzhou 730030，China；3．School of Civil Engineering，Lanzhou Jiaotong University，Lanzhou 730070。China
Keywords:
pavement engineering; fractal dimension; SUPERPAVE mixture; design parameter; prediction
文献标志码:
A
摘要:
基于分形几何理论,推导出矿料的分形分布模型;以SUPERPAVE-19为例,计算了矿料级配分维值,并通过沥青混合料设计参数的测试,研究了分形维数与混合料设计参数的关系,在此基础上对SUPERPAVE混合料设计参数进行了预估.结果表明:SUPERPAVE混合料矿料级配亦具有明显的分形特征:分维值D与矿料间隙率、沥青饱和度、初始压实度和沥青用量等设计参数有很好的线性相关性.利用矿料级配分形规律,可对具有不同分维值D的SUPERPAVE混合料的体积参数进行预估,使混合料的配合比设计更具针对性.
Abstract:
The fractal model of aggregates in Supepave mixture was deduced based on the theory of fractal ge—ometry．By taking SUPERPAVE-19 as an example，the relationship between the fractal dimension(D)and de—sign parameter was stadied by testing volume parameter of mixtures．Base on this，the design parameters ofmixtures were predicted．The results show that aggregate gradation of SUPERPAVE mixture has fractal charac·teristie too，The fractal dimension has good linear correlation with voids in mineral aggregate，voids filled withasphalt，initial compaction degree and asphalt content．The design parameters of SUPERPAVE mixtures withdifferent D can be estimated accordingly．The fraetal characteristics of SUPERPAVE mixtures will make designmethod of asphalt mixtures more objective．
更新日期/Last Update: 1900-01-01