Abstract—The viscous-elastic, ductile and flexible nature of asphalt pavements promote their extensive worldwide use. Nonetheless, some pavement sections are largely subjected to shear stresses and still loads. Consequently, a higher stiffness of the surface layer is required. In this concern, macro voids enriched asphalt pavements are filled with mortar to increase the rigidity. In this work, a mortar percolated asphalt surface layer was placed in a rest area truck parking to resist the high loads. Visual and optical inspections, compressive strength, freeze / thaw resistance, thermal dilatation and the microstructure were investigated. The lack of percolated mortar complete filling of the asphalt macro voids caused extensive cracking and rutting. Wide crack openings went down through the asphalt layer. The compressive strength and the resistance to frost complied with the normative regulations and exhibited a relatively high resistance, while the lowest tensile strengths and rupture were measured within the poorly percolated mortar layer. The microstructure exhibited variable adhesion at the interfaces, with a frequent presence of porosities also occasionally within the asphalt layer.

Keywords—pavement, asphalt, mortar, cracking, rutting

Cite: Christian Paglia, Michele Paderi, and Cristina Mosca, "The Damage of an Asphalt Mortar Highway Rest Area Truck Parking," International Journal of Structural and Civil Engineering Research, Vol. 13, No. 4, pp. 121-125, 2024.