基于沥青混合料表面构造特性的集料设计参数

陈德; 韩森; 苏谦

doi:10.3969/j.issn.0258-2724.2017.05.014

基于沥青混合料表面构造特性的集料设计参数

doi: 10.3969/j.issn.0258-2724.2017.05.014

陈德^1,2,3,
韩森^3,4,
苏谦^1,2

基金项目:

国家自然科学基金面上基金资助项目（51578076，5178467）

中央高校基本科研业务费科技创新项目（2682016CX009）

中央高校基本科研业务专项费开放基金资助项目（310821171103）

详细信息

作者简介:
陈德(1989-),男,讲师,博士,研究方向为路基路面工程,E-mail:chendelu435@163.com

计量
- 文章访问数: 516
- HTML全文浏览量: 99
- PDF下载量: 43
- 被引次数: 0
出版历程
- 收稿日期: 2016-05-05
- 刊出日期: 2017-10-25

Study on Design Parameters of Aggregate Based on Surface Texture Characteristic of HMA

CHEN De^1,2,3,
HAN Sen^3,4,
SU Qian^1,2

摘要

摘要: 为了实现基于表面构造特性的沥青混合料优化设计，运用图像处理技术的沥青混合料表面构造水平及分布特性测试方法，研究了具有不同集料设计参数的沥青混合料表面构造水平随波长的分布特性，提出了表征沥青混合料表面构造整体水平的指标（特征波长和特征波水平），分析了不同通过率处集料粒径大小与混合料表面构造水平之间的相关性；运用分形理论计算了集料级配的不规则性及破碎程度，并研究了集料形态及其在沥青混合料中的分布.结果表明：90%通过率处的集料粒径D90能够表征集料粒径整体大小；集料级配分形维数可反映和度量集料级配的不规则性及破碎程度；集料规则度及方向角正弦值可表征集料形态及其在沥青混合料中的分布特性.
- 道路工程 /
- 沥青混合料 /
- 表面构造 /
- 图像处理 /
- 集料 /
- 设计参数
Abstract: In order to realise an optimised asphalt mixture design according to surface texture properties, the distributions along with wavelengths of the surface texture of asphalt mixtures, having different aggregate design parameters, were analysed using the testing method of levels and distributions of asphalt mixture surface texture, which was developed based on image analysis techniques. The indicators (i.e., characteristic wavelength and level of characteristic wavelength) were proposed, to characterise the overall properties of the asphalt mixture surface texture. The correlations between the aggregate sizes in different passing ratios and asphalt mixture surface texture levels were analysed. The irregularity and fragments of aggregate gradation were obtained according to the fractal theory. Following this, the shapes and distributions of aggregates in the asphalt mixture were studied. The results indicate that D90, which is the sieve size in the 90% passing ratio, is an ideal index for representing the entire aggregate particle size. Furthermore, factual dimensions can reflect the irregularity and fragments of aggregate gradation. The regularity and sine of the aggregate direction angle can be used to represent the aggregate shape and distribution in the asphalt mixture.
- highway engineering /
- hot mixed asphalt(HMA)-mixture /
- surface texture /
- image analysis /
- aggregate /
- design parameter

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参考文献(14)

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文章访问数: 516
HTML全文浏览量: 99
PDF下载量: 43
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基于沥青混合料表面构造特性的集料设计参数

doi: 10.3969/j.issn.0258-2724.2017.05.014

作者简介: 陈德(1989-),男,讲师,博士,研究方向为路基路面工程,E-mail:chendelu435@163.com

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Study on Design Parameters of Aggregate Based on Surface Texture Characteristic of HMA

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目录

作者简介:
陈德(1989-),男,讲师,博士,研究方向为路基路面工程,E-mail:chendelu435@163.com