Road rehabilitation as an opportunity to analyse the approach in designing pavement constructions

摘要

The pavement constructions of highways built in he eighties mainly featured low bearing surfaces with cement stabilization and asphalt layers with the total thickness of up to 26 cm. The nineties were a period of rationalization, mainly referring to the reduction of the asphalt layer thickness. This paper will compare the two approaches upon the designing of pavement constructions in Serbia and in Macedonia. The paper presents subjects dealing with issues like the choice between the “long-term“ or “rationalized” pavement construction as well as with problems in the evaluation of layers of non-cohesive granulated material or the layer of cement-connected stone material. Contrary to this, the present paper does not deal with questions related to numerous diagnostic methods applied in the assessment of the pavement conditions, which is otherwise a rather important segment in the process of road rehabilitation design.