High-performance coated material for pavement and a road surface

摘要

The invention relates to coated material (1) for the base layer (5) of road pavement, made up of aggregate (2) coated with a hydrocarbon binder (3), wherein the aggregate (2) is more than 95 wt % of the coated material (1); wherein the aggregate (2) includes a granular structure, which includes a plurality of granular fractions d/D; one intermediate fraction of which is less than 15% of the granules; wherein the hydrocarbon binder (3) is less than 5 wt % of the coated material; wherein the coated material (1) includes, after compacting, a void fraction of less than 8%; wherein the hydrocarbon binder (3) is a hydrocarbon binder modified by adding polymers or oil, or modified by foaming or by emulsion, by means of which the modulus of rigidity of the coated material (1), once compacted, is higher than 9000 MPa.