Bitumen production in according to three standard method (Blowing method ,Straight run
method and Blending method)
The Air Blowing Bitumen is produced by process of vacuum Bottom (VB) and air in the
reactor. and due to the control of the process conditions, different grades are produced.
Bitumen clasification according to various specification such as Penetration, Viscosity,
Performane of bitumen in the road and ….
