Abstract
We have established that earlier concrete roads, built between the 1920s and 1960s, proved to be very resistant to wear by tyre studs. In the spring of 1989, it was therefore decided to build two new concrete roads in Sweden, one of which was the the E4.65 Arlanda road - a 1,7 km test stretch of motorway - and the E6 Falkenberg bypass - a 16 km stretch of motorway. As one element in the planning of these roads, systematic development work was undertaken with the aim of acquiring knowledge of the wear-affecting factors on concrete wear surfaces. The evaluation was carried out principally in the Norwegian "Veijslitern" road-testing machine. (A)