Bitumen VG 30 Producing Method of Asia Bitumen

Bitumen VG 30 is one of the classified bitumen that is created by blowing air into a vacuum bottom (VB) in the distillation tower by Blowing air continuously and intermittently.

The classification of VG bitumen is based on viscosity, and viscosity is one of the fundamental characteristics of bitumen, which determines how this sample of bitumen reacts at a certain temperature or in a certain thermal condition.

Bitumen VG30 is widely used in road construction projects that have heavy traffic, as well as in the building construction projects and insulation industry and the production of liquid bitumen, and this bitumen is very suitable for use in areas with moderate weather.

Bitumen VG30 is prepared according to AASHTO-M226 and ASTM-D3381 standards.

And the tests performed on the Bitumen VG30 product sample are presented according to the following Table:

SPECIFICATION OF BITUMEN GRADE VG 30
SPECIFICATION AS PER NATIONAL IRANIAN OIL COMPANY (NIOC)
SPECIFICATIONSpecificationTEST METHOD
Absolute Viscosity, 60 C°, poises, min2400IS 1206
Kinematic Viscosity, 135 C°, CST, min350IS 1206
Flashpoint, C°, min220IS 1209
Solubility in trichloroethylene, %, min99IS 1206
The softening point, C°, min47IS 1205
Penetration at 25 C°50-70IS 1203
Viscosity ratio at 60 C°, max4.0IS 1206
Ductility at 25 C°, cm, min, after thin film over test40Is 1208
Specific Gravity @ 27/27 C°0.99Is 1202