Steep Shear Properties of Asphalt Mixtures Based on Fractal Theory

Abstract A growing body of evidence showed that flow rutting and inter-layer slippage in asphalt pavements at intersections and large longitudinal slopes is directly related to the capacity of the asphalt mixture to resist shear flow deformation. This study used fractal theory to analyze the microstructures of asphalt mixtures AC-13, SMA-13, and Sup-13, the volume fractal dimensions of which are also determined. The relation between the volume fractal dimensions and shear properties of asphalt mixtures was determined through repeated load creep tests.