Viscosity grade bitumen has a thermoplastic feature which causes the material to soften at high temperatures and to harden at lower temperatures. This temperature viscosity relevance is significant when specifying the performance parameters such as the adhesion, rheology, durability, and application temperatures of bitumen. In the Viscosity Grade Bitumen specifications, the most important emphasize is based on the Bitumen ductility. Viscosity Grade Bitumen is widely used in spraying applications such as surface-dressing and paving in a very cold climate. It is also used to manufacture bitumen emulsion and modified bitumen products