Semi-flexible multi-layer paving

摘要

A semi-flexible, multi-layer paving (pavement) for the construction of carriageways with high load stresses is described, comprising a bottom foundation layer (1) composed of a mixture of cement with crushed stone aggregates, and a base layer (2), positioned on top of the layer (1), composed of a mixture of cement with crushed stone aggregates with a high cement content, in which above the layer (2) are positioned a tack coat of overstabilized bituminous emulsion and a continuous surface layer (3) composed of a composite mixture deriving from a matrix formed by an open-graded bituminous mix, the voids being filled with a highly-fluid cement mortar and in which the stone aggregates of the layer (1) and of the layer (2) are recycled cementitious materials deriving from crushing of recycled concrete.