Asphalt

• Dark brown or black solids or sem i-solids which are found in natural state or the residue obtained in refining / distillation of petroleum . 
• is readily soluble in most petroleum products . 
• Composed almost entirely ob bitumen 
• Asphalt are bituminous mixtures containing substantial amounts of fine material in the form of sand and filter . 
• The sand and filler , together with binder , form a stiff 'mortar ' which provides strength and stiffness for the final product .