[1] Zhang Xiaoning, Chi Fengxia, Wang Lijian, Shi Jinfeng, et al. Study on viscoelastic performanceof asphalt mixture based on CAM model [J]. Journal of Southeast University (English Edition), 2008, 24 (4): 498-502. [doi:10.3969/j.issn.1003-7985.2008.04.020]

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Study on viscoelastic performanceof asphalt mixture based on CAM model()

基于CAM模型的沥青混合料粘弹性能研究

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

24

Issue:

2008 4

Page:

498-502

Research Field:

Traffic and Transportation Engineering

Publishing date:

2008-12-30

Info

Title:

Study on viscoelastic performanceof asphalt mixture based on CAM model

基于CAM模型的沥青混合料粘弹性能研究

Author(s):

Zhang Xiaoning¹, Chi Fengxia¹, Wang Lijian², Shi Jinfeng³

¹Road Engineering Research Institute, South China University of Technology, Guangzhou 510640, China
²Guangdong Provincial Freeway Co., Ltd, Guangzhou 510100, China
³Shanghai Keda Municipal and Traffic Design Institute, Shanghai 200030, China

张肖宁¹, 迟凤霞¹, 王丽健², 史金锋³

¹华南理工大学道路工程研究所, 广州510640; ²广东省高速公路有限公司, 广州 510100; ³上海科达市政交通设计院, 上海 200030

Keywords:

asphalt mixture;  CAM model;  master curve

沥青混合料;  CAM模型;  主曲线

PACS:

U414.1

DOI:

10.3969/j.issn.1003-7985.2008.04.020

Abstract:

In order to study the viscoelastic characteristics of asphalt mixtures in the whole-frequency range, a dynamic shearing rheometer is used to carry out dynamic frequency sweeps for asphalt mixtures, which obtains the three-dimensional relationships among G^*, temperature and frequency. Then the time-temperature shift principle is used to translate the relationships from three dimensions to two dimensions, so master curves are obtained regarding dynamic modules changing along with the frequency over 15 amount levels. The Christensen-Anderson-Marasteanu(CAM)model, a kind of the rheological model, is used to analyze and compare rheological performances of several asphalt mixtures based on the obtained master curves. The results indicate that the dynamic rheological test is an effective method for obtaining the master curve. Besides, the CAM model can describe well the viscoelastic deformation characteristics of asphalt mixtures.

为了在全频范围内研究沥青混合料的粘弹特性, 采用动态剪切流变仪对沥青混合料进行连续动态频率扫描, 得到温度-频率-动态模量的三维关系.利用时温等效原理, 将频率扫描试验得到的三维关系进行温-频转换, 获得了跨越15个数量级的动态模量随频率变化的二维全频主曲线.基于试验所得到的全频主曲线, 利用CAM流变模型对几种沥青混合料的流变性能进行了比较分析.结果表明, 动态流变试验是获得沥青混合料全温全频主曲线的有效方法, 基于全频域的CAM模型能够很好地描述沥青混合料的粘弹变形特性.

References:

[1] Marasteanu M O, Anderson D A.Improved model for bitumen rheological characterization[C]//Eurobitume Workshop on Performance Related Properties for Bituminous Binders.Luxembourg, 1999:133-134.
[2] Stastna J, Zanzotto L, Berti J.How good are some rheological models of dynamic functions of asphalt [J].Journal of the Association of Asphalt Paving Technologists, 1997, 66(5):458-485.
[3] Reinke Gerald H, Glidden Stacy.Development of mixture creep performance tests using a dynamic shear rheometer [J].Transportation Research Board of the National Academies, 2004, 9(3):1-43.
[4] Zeng Menglan, Bahia Hussain U, Zhai Huachun, et al.Rheological modeling of modified asphalt binders and mixtures [J].Journal of the Association of Asphalt Paving Technologists, 2001, 70(6):403-435.
[5] Shen Jinan.Pavement performance of asphalt and asphalt mixture [M].Beijing:China Communications Press, 2001:125-138.(in Chinese)
[6] Li Xiaomin.The research on evaluation method and property of asphalt mastic based on rheological property [D].Harbin:Traffic Science and Engineering Institute of Harbin Institute of Technology, 2006.(in Chinese)
[7] Zhang Xiaoning.Viscoelastical mechanics principle and application of asphalt and asphalt mixture [M].Beijing:China Communications Press, 2006:71-86.(in Chinese)
[8] Bahia H U, Hanson D L, Zeng M, et al.Characterization of modified asphalt binders in superpave mix design, NCHRP Report 459 [R].Washington, DC:National Academy Press, 2001:37-46.
[9] Chi Fengxia.Study on morphology of asphalt mixture basing on characteristic of deformation [D].Guangzhou:Road Engineering Research Institute of South China University of Technology, 2008.(in Chinese)

Memo

Memo:

Biography: Zhang Xiaoning(1951—), male, doctor, professor, prozxn@163.com.
Foundation item: The National Natural Science Foundation of China(No.50278037).
Citation: Zhang Xiaoning, Chi Fengxia, Wang Lijian, et al.Study on viscoelastic performance of asphalt mixture based on CAM model[J].Journal of Southeast University(English Edition), 2008, 24(4):498-502.

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