The role of sand gravel in lowering the mechanical wear of traffic paints

Tar‐impregnated paper strips, 2m long and 20cm width were painted with 1–1.25mm thick yellow traffic paint. Sand gravel having a grain size 2.0 + 1.5 mm was uniformly screened over the wet paint film. The dry painted samples were fixed on pavements of Jeddah‐Taif highway during the summer [42 ± 2°C]. The mechanical wear rate was determined and compared with that of sand‐free paint.