Sand can be ordered into three kinds dependent on grain sizes, as coarse, medium and fine. The assurance of these divisions is significant since they influence the designing qualities and execution of sands as asphalt layers as far as versatility, quality and bearing limit. The state of sand particles influences its thickness and steadiness and by and large designing conduct. Smooth adjusted particles would offer less protection from revision than rakish or extended particles with harsh surfaces
Ocean and desert sands only from time to time fulfill the prerequisites of customary determinations for use as a development material, particularly in their untreated state.