ABSTRACT

Pavements and, more generally speaking, road structures are made up of materials varying very widely both in nature and in properties (unbound aggregates, bitumen-bound materials, materials treated with cementitious binders,…). All these structures are liable to fracture by many causes, giving rise to cracks of highly different shapes and natures. As a result of traffic and environmental stresses, these different cracks will produce a great variety of stresses in any overlay applied on the cracked structure. Controlling crack reflection through pavements is, therefore, a complex task and any procedure effective for certain types of cracking may be ineffective for others.