Matériaux composites à base de graves et de liants polymères—IV. Étude des propriétés mécaniques des matériaux réalisés à base de polyéthylène noble

This study concerns mixtures of calcareous, silica-calcareous, basaltic and sandy granules with polyethylene. The polyethylene (PE) is a low density material or a mixture of recovered PE and PE waxes. The compression resistances (RC) of these composits are related to the kneading temperature, the kneading time, the binder ratio and the fluidity index (I.F.). The two most important factors are the PE ratio and its oxidation rate. On the other hand, I.F. and granules nature are less important factors. In all cases the mechanical performances obtained are always better than those obtained with classical bituminous materials.