Laboratory evaluation of pavement macrotexture durability

ABSTRACT The aim of this paper is to present a study concerning the evaluation of the durability of the asphalt concrete macrotexture in laboratory. An experimental procedure was developed. This experimental procedure consists in a mechanical test which aims to alter the upper face macrotexture of a cylindrical specimen through the application of a sinusoidal repeated load on its surface. In order to quantify the macrotexture evolution produced we use a laser texture evaluation system. This system allows the scanning of surface specimen before and after mechanical solicitation. In this paper, we first present the materials and the experimental procedure. Then, we expose the various surface indicators analysis and finally we discuss the experimental results.