吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (01): 74-80.doi: 10.13229/j.cnki.jdxbgxb201401013

• 论文 • 上一篇    下一篇

不同成型方法和级配的沥青混合料内部空隙特征

王聪1,2, 郭乃胜1,2, 赵颖华1,2, 谭忆秋3   

  1. 1. 大连海事大学 道路与桥梁工程研究所, 辽宁 大连 116026;
    2. 辽宁省公路工程重点实验室, 辽宁 大连 116026;
    3. 哈尔滨工业大学 交通科学与工程学院, 哈尔滨 150090
  • 收稿日期:2012-09-13 出版日期:2014-01-01 发布日期:2014-01-01
  • 作者简介:王聪（1987-），男，博士研究生.研究方向：道路工程.E-mail：lnwangcong@163.com
  • 基金资助:

    “十一五”国家科技支撑计划项目（2008BAG10B02）；高等学校博士学科点专项科研基金项目（20092125120005）；中央高校基本科研业务费专项项目（2011QN136，2012TD015）.

Air voids distribution of asphalt mixtures in different compaction methods and aggregate gradations

WANG Cong1,2, GUO Nai-sheng1,2, ZHAO Ying-hua1,2, TAN Yi-qiu3   

  1. 1. Institute of Road and Bridge Engineering, Dalian Maritime University, Dalian 116026, China;
    2. Key Laboratory of Highway Engineering of Liaoning Province, Dalian 116026, China;
    3. School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, China
  • Received:2012-09-13 Online:2014-01-01 Published:2014-01-01

RICH HTML

0   

PDF (PC)

265

摘要：

采用X-ray CT技术和数字图像处理技术研究两种成型条件下三种级配沥青混合料试件的内部空隙特征，并通过统计分析提出数学模型对其进行表征。结果表明，沥青混合料的空隙空间分布规律受试件成型方法及级配类型的影响较大。不同级配条件下，马歇尔试件内部空隙率分布沿着高度方向总体呈现对称形状，而静压试件内部空隙率分布则为“一端大，一端小”的形状，马歇尔试件的平均空隙率与目标空隙率差异较小，而静压试件的平均空隙率是目标空隙率的1.4倍以上；相同级配条件下，与马歇尔试件相比，静压试件的空隙空间分布离散性、平均空隙率和平均空隙数量均较大，但平均空隙等效直径相差较小；采用两参数数学模型能够较好地表征成型方法和集料级配对沥青混合料内部空隙空间分布规律的影响。

关键词: 道路工程, 沥青混合料, 空隙, X-ray CT, 成型方法

Abstract:

The air voids distribution of three gradations of aggregate is characterized using X-ray computed technology and digital image processing technology. Furthermore, a mathematic model is proposed to describe the air void distribution inside the asphalt mixtures by means of statistical analysis. The results show that both the gradations of aggregate and compaction methods have considerable influence on the air voids distribution within the specimens. Results also show that the voids distribution is symmetric along the depth of the Marshall specimens, whereby, the air voids distribution in the statically compacted specimens in nonsymmetrical along the depth that the number of air voids on the top part of the specimen is bigger than that at the bottom part. There is little difference between the target void fraction and the mean void fraction of the Marshall specimens; while the mean void fraction of the static compaction specimens is over 1.4 times of the target void fraction. In comparison with the Marshall specimens in uniform gradation of aggregate, in the statically compacted specimens, the number of air voids is bigger and the fluctuation along the depth is more remarkable, but the void size is almost consistent. Sstatistical analysis validates the applicability of the two parameter mathematical model to characterize air void distribution in asphalt mixture, and to quantify the effects of compaction methods and gradation of aggregate on air voids.

Key words: road engineering, asphalt mixture, air voids, X-ray CT, compaction method

中图分类号: 

  • U414.103

[1] Masad E, Jandhyala V K, Dasgupta N, et al. Characterization of air void distribution in asphalt mixes using X-ray computed tomography[J]. Journal of Materials in Civil Engineering, 2002, 14(2): 122-129.

[2] Masad E, Muhunthan B. Internal structure characterization of asphalt concrete using image analysis[J]. Journal of Computing in Civil Engineering, 1999, 13(2): 88-95.

[3] Wang L B, Frost J, Mohammad L, et al. Three-dimensional aggregate evaluation using X-ray tomography imaging[C]//The 81st Annual Meeting of Transportation Research Board, Washington D C, 2002:1-22.

[4] You Z P. Development of a micromechanical modeling approach to predict asphalt mixture stiffness using the discrete element method[D]. Urbana-Champaign: University of Illinois, 2003.

[5] Arambula E, Masad E, Martin A E. Influence of air void distribution on the moisture susceptibility of asphalt mixes[J]. Journal of Materials in Civil Engineering, 2007, 19(8): 655-664.

[6] 裴建中, 张嘉林. 矿料级配对多孔沥青混合料空隙分布特征的影响[J]. 中国公路学报, 2010, 23(1):1-6. Pei Jian-zhong, Zhang Jia-lin. Influence of mineral aggregate gradation on air void distribution characteristic of porous asphalt mixture[J]. China Journal of Highway and Transport, 2010, 23(1): 1-6.

[7] 李芬, 沈成武. 基于CT图像的沥青混合料分形特征的研究[J]. 华中科技大学学报:城市科学版, 2006, 23(2):35-37. Li Fen, Shen Cheng-wu. Study on fractal characteristics of asphalt mixture based on CT image[J]. Journal of Huazhong University of Science and Technology(Urban Science Edition), 2006, 23(2): 35-37.

[8] 汪海年, 郝培文. 沥青混合料微细观结构的研究进展[J]. 长安大学学报:自然科学版, 2008, 28(3):11-15. Wang Hai-nian, Hao Pei-wen. Advances in microstructure study on asphalt mixture[J]. Journal of Chang'an University(Natural Science Edition), 2008, 28(3):11-15.

[9] 李晓军. 沥青混合料破损识别与仿真[D]. 广州:华南理工大学, 2004. Li Xiao-jun. Damage identification and simulation of asphalt mixture[D]. Guangzhou: South China University of Technology, 2004.

[10] 李晓军, 张肖宁. CT技术在沥青胶结颗粒材料内部结构分析中的应用[J]. 公路交通科技, 2005, 22(2):14-16. Li Xiao-jun, Zhang Xiao-ning. Application of X-ray computerized tomography in analysis of inner structure of asphalt mix[J]. Journal of Highway and Transportation Research and Development, 2005, 22(2): 14-16.

[11] Masad E, Tashman L, Somedavan N, et al. Micromechanics based analysis of stiffness anisotropy in asphalt mixtures[J]. Journal of Materials in Civil Engineering, 2002, 14(5): 374-383.

[12] Masad E, Button J W. Unified imaging approach for measuring aggregate angularity and texture[J]. Computer Aided Civil and Infrastructure Engineering, 2000, 15(4): 273-280.
[1] 李伊,刘黎萍,孙立军. 沥青面层不同深度车辙等效温度预估模型[J]. 吉林大学学报(工学版), 2018, 48(6): 1703-1711.
[2] 臧国帅, 孙立军. 基于惰性弯沉点的刚性下卧层深度设置方法[J]. 吉林大学学报(工学版), 2018, 48(4): 1037-1044.
[3] 念腾飞, 李萍, 林梅. 冻融循环下沥青特征官能团含量与流变参数灰熵分析及微观形貌[J]. 吉林大学学报(工学版), 2018, 48(4): 1045-1054.
[4] 宫亚峰, 申杨凡, 谭国金, 韩春鹏, 何钰龙. 不同孔隙率下纤维土无侧限抗压强度[J]. 吉林大学学报(工学版), 2018, 48(3): 712-719.
[5] 程永春, 毕海鹏, 马桂荣, 宫亚峰, 田振宏, 吕泽华, 徐志枢. 纳米TiO2/CaCO3-玄武岩纤维复合改性沥青的路用性能[J]. 吉林大学学报(工学版), 2018, 48(2): 460-465.
[6] 张仰鹏, 魏海斌, 贾江坤, 陈昭. 季冻区组合冷阻层应用表现的数值评价[J]. 吉林大学学报(工学版), 2018, 48(1): 121-126.
[7] 季文玉, 李旺旺, 过民龙, 王珏. 预应力RPC-NC叠合梁挠度试验及计算方法[J]. 吉林大学学报(工学版), 2018, 48(1): 129-136.
[8] 马晔, 尼颖升, 徐栋, 刁波. 基于空间网格模型分析的体外预应力加固[J]. 吉林大学学报(工学版), 2018, 48(1): 137-147.
[9] 罗蓉, 曾哲, 张德润, 冯光乐, 董华均. 基于插板法膜压力模型的沥青混合料水稳定性评价[J]. 吉林大学学报(工学版), 2017, 47(6): 1753-1759.
[10] 尼颖升, 马晔, 徐栋, 李金凯. 波纹钢腹板斜拉桥剪力滞效应空间网格分析方法[J]. 吉林大学学报(工学版), 2017, 47(5): 1453-1464.
[11] 郑传峰, 马壮, 郭学东, 张婷, 吕丹, 秦泳. 矿粉宏细观特征耦合对沥青胶浆低温性能的影响[J]. 吉林大学学报(工学版), 2017, 47(5): 1465-1471.
[12] 于天来, 郑彬双, 李海生, 唐泽睿, 赵云鹏. 钢塑复合筋带挡土墙病害及成因[J]. 吉林大学学报(工学版), 2017, 47(4): 1082-1093.
[13] 蔡氧, 付伟, 陶泽峰, 陈康为. 基于扩展有限元模型的土工布防荷载型反射裂缝影响分析[J]. 吉林大学学报(工学版), 2017, 47(3): 765-770.
[14] 刘寒冰, 张互助, 王静. 失水干燥对路基压实黏质土抗剪强度特性的影响[J]. 吉林大学学报(工学版), 2017, 47(2): 446-451.
[15] 崔亚楠, 韩吉伟, 冯蕾, 李嘉迪, 王乐. 盐冻循环条件下改性沥青微细观结构[J]. 吉林大学学报(工学版), 2017, 47(2): 452-458.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
版权所有 © 《吉林大学学报(工学版)》编辑部
地址：长春市人民大街5988号　电话：+86-431-85095297　传真：+86-431-85094074　E-mail: xbgxb@jlu.edu.cn
本系统由北京玛格泰克科技发展有限公司设计开发