Influence of freeze–thaw on the polishing resistance of coarse aggregates on road surface

The aggregates used for surface layers are of central importance for the skid resistance of a road as they are subjected to a combined load due to traffic and weather conditions. In this paper, different aggregates are selected and two plate specimens are produced using each aggregate. One of the test plates is subjected to solely polishing load and the other one was treated with a combined load of polishing and freeze–thaw cycles. By comparing the texture changes and the skid resistance development, a statement is derived on the impact of a freeze–thaw effect for the short-term and long-term development of skid resistance.