Analysis of movement track of coarse particles during rutting test of asphalt mixture

作者：Wu, Wen-Liang^*; Zhang, Xiao-Ning; Li, Zhi

来源：Journal of South China University of Technology(Natural Science Edition), 2009, 37(11): 27-30+49.

• Coarse particles
• Digital image processing technologies
• Movement track
• Original images
• Particle movement
• Road engineering
• Rotation angles
• Rutting

The rutting of asphalt pavement is always one of the research focuses in road engineering. In this paper, the original image of AC-13C asphalt mixture during the APA rutting test and the corresponding sectional images after the loading respectively for 500, 1000, 2000, 4000 and 6000 times were acquired, and the movement track of coarse particles was analyzed according to the images. The results show that the digital image processing technology has great capability in movement tracking of coarse particles, and that, by defining the rotation angle θ, the displacement L and the statistics Δ and α, the complicated particle movement in different loading stages during the APA rutting test can be well described and quantified.

• 出版日期2009-11
• 单位华南理工大学