Meso-analysis on Skeleton Structure of Coarse-graded Asphalt Mixtures

Abstract

Meso-structure of skeleton of coarse-graded asphalt mixture was studied numerically in terms of particle coordination numbers and mixture porosity. The results show that coarse aggregates play a double role in the mixture. They are elements of the mixture skeleton and also void filling materials of the skeleton structure. Upon the assumption that the coarse aggregates can be further categorized into two classes as larger coarse aggregates and fine-coarse aggregates which divided by the sieve size of