The asphalt mixture must be both flexible at low temperatures to prevent cracking and sufficiently rigid at high temperatures to prevent permanent deformation. Permanent deformations of flexible pavements are mainly due to creep of asphalt mixtures. Permanent deformations occur due to repeated traffic loads superimposed with high temperature.
Determining the resistance of asphalt mixtures to permanent deformation is very important, as it characterises the limit of the elastic range and helps to achieve quality asphalt mixtures. Like the fatigue phenomenon, the permanent deformation phenomenon also plays an important role in the design of road pavements.
The present paper aims to highlight the laboratory results on the permanent deformation resistance of asphalt mixtures used in wearing courses (BBA 16 - airport asphalt mix, SMA 16 – stone mastics asphalt and MAMR 16 - asphalt mix which meets the requirements of a wearing course asphalt mix but which has been designed to have a higher modulus of rigidity than those normally used for wearing courses). The results of the laboratory tests are presented in the form of tables and graphs.

permanent deformations, wearing course, asphalt mixtures