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

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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.