TBTPAV-II Bitumen PAV System consists of TBTPAV-I Pressure Aging Vessel (PAV) & TBTPAV-II Vacuum Degassing Oven (VDO).

The method is first aged using T 240(RTFOT, TBT-0610W is suitable model). A specified thickness of residue, from the RTFOT, is then placed in stainless steel pans and aged at the specified aging temperature for 20h in a vessel pressurized with air to 2.10 MPa. The aging temperature is selected according to the grade of the asphalt binder. At the completion of the PAV process, the asphalt binder residue is then vacuum degassed.