ABSTRACT
The space distribution of aggregate, asphalt binder and pore in the structure of asphalt mixture is affected by raw materials, construction technology and other factors, it has great variability, asphalt mixing material differences in macroeconomic performance is asphalt mixture phase differences in the microscopic distribution in the final analysis. This paper attempts to apply the fractal theory to test the gradation, in order to reduce the amount of experiment in the course of gradation test. The correlation models of fractal volume parameters and fractal dimension of GAC-20 modified asphalt mixture are established. The volume parameters of GAC-20 modified asphalt mixture can be predicted by the known fractal dimension, which is advantageous to test the grading and determine the structure type of asphalt mixture. Thereby the workload can be reduced and the design.
