Application of Digital Image Processing Technique to Simulate the Macro-Mechanical Behavior of Asphalt Concrete
by Zhi-yi Huang, (Professor, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, China. E-mail: hzy@zju.edu.cn), Xin-fei Wang, (Graduate student, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, China. E-mail: wangxinfei@zju.edu.cn), Xing-yi Zhu, Ph.D., (Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai, China; Department of Engineering Mechanics, Zhejiang University, Hangzhou, China. E-mail: zhuxingyi66@yahoo.com.cn), and Zhuo Liu, (Graduate student, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou China. E-mail: lliuzzhuo051834@yahoo.com.cn)
pp. 167-174, (doi: http://dx.doi.org/10.1061/47623(402)20)
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| Document type: |
Conference Proceeding Paper |
| Part of: |
Pavements and Materials: Recent Advances in Design, Testing and Construction |
| Abstract: |
The digital image processing technique is implemented to build the geometrical model, and several factors such as the properties of asphalt mastic, the size and volume content of coarse aggregate, the size and ratio of air voids, and aggregate gradations are considered in the model. In the geometrical model, the aggregate are drawn as the equivalent ellipses in order to improve the efficiency of numerical calculation. The numerical method fast multipole boundary element method is employed to predict the elastic modulus of the asphalt concrete, and the test results are compared to verify the accuracy of the established geometrical model and numerical method. |
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