In the design of asphalt mixtures for paving, the choice of components
has a remarkable importance,as requirements of quality and durability
must be assured in use, guaranteeing adequate standardsof safety and
In this paper, an approach of analysis on the aggregate materials using
fractal geometry is proposed. Following an analytical and an
experimental approach, it was possible to find a correlation
betweencharacteristics of the asphalt concrete (specific gravity and
porosity) and the fractal dimension ofthe aggregate mixtures.
The studies revealed that this approach allows to draw the optimal
fractal dimension and, conse-quently, it can be used to choose an
appropriate aggregate gradation for the specific application;once the
appropriate initial physical parameters are finalized.
This fractal approach could be employed for predicting the porosity of
mixed asphalt concretes,given as input the fractal characteristics of
the aggregate mixtures of the concrete materials.