Gradation theory of asphalt mixture aggregate based on fractal theory

DOI

10.2991/icmmct-17.2017.41How to use a DOI?

Keywords

road engineering, asphalt mixture, gradation theory, fractal

Abstract

This paper introduces the method to calculating fractal dimension of aggregate. Analyze the fractal character of asphalt mixture aggregate. For dense-graded aggregate, the distribution of particles has one fractal model. But for gap-graded aggregate, the distribution of particles has two different multi-fractal models. Adopt Dc (fractal dimension of coarse aggregate) and Df (fractal dimension of fine aggregate) as the indexes to describe the fractal characters of asphalt mixture aggregate. Fractal gradation theory is developed to calculate the amount of material in the system finer than size "r". This theory can be used for asphalt mixture aggregate gradation design not only for dense-graded aggregate, but also for gap-graded aggregate. Analyze the relationship between the fractal gradation theory and other gradation theories. The results showed that the fractal gradation theory can contain the others because fractal is the essence of aggregate.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Ruihua Yang
AU  - QianCheng Zhou
PY  - 2017/04
DA  - 2017/04
TI  - Gradation theory of asphalt mixture aggregate based on fractal theory
BT  - Proceedings of the 2017 5th International Conference on Machinery, Materials and Computing Technology (ICMMCT 2017)
PB  - Atlantis Press
SP  - 206
EP  - 214
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmct-17.2017.41
DO  - 10.2991/icmmct-17.2017.41
ID  - Yang2017/04
ER  -