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Fractal analysis of asphalt mixture based on two-dimensional imaging technology

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Document pages: 7 pages

Abstract: Fractal is a mathematical set, its fractal dimension usually exceeds its topological dimension, and may be non integer. Due to the limitations of randomness and self similarity of asphalt pavement structure, fractal theory is explored to quantify asphalt pavement structure, and has good applicability in dealing with and analyzing the complex details of the research object. In this paper, the area fractal dimension and contour fractal dimension are used to measure the two-dimensional digital image of pavement, which are correlated with aggregate gradation and British Pendulum number (BPN) respectively. The results show that the area fractal dimension of aggregate provides a simple method to obtain the continuous gradation and contour fractal dimension of asphalt concreteension is an available parameter to characterize roughness and friction of pavement surface texture.

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