What is the meaning of VG 40?
VG40 bitumen is used in areas in which high pressure comes from heavy traffic loads, such as intersections, near tolls booths, and truck parking lots.
Due to the high viscosity of this bitumen, it is more appropriate for improving resistance to shoving and other problems associated with higher temperatures and heavy traffic loads. It’s long time that industries use vg-40 instead of the penetration grade bitumen 40/50.
The difference between VG30 and VG40
The difference between VG30 and vg40 is that the VG 30 bitumen is suitable for mild weather and VG 40 bitumen is better to use in hot climate. If you need to consult before buying VG40 contact us.
What are the Advantages in the Application of Viscosity Grade 40 Bitumen?
- – It is suitable for a temperature above 40 ◦C
- – Its absolute viscosity is 3200
- – It is a preferred type of bitumen when heavy traffic load is expected
Specification of Bitumen Penetration Grade VG 40
TEST | METHOD | SPECIFICATION |
VG 40 | ||
Absolute viscosity at 60°C, Poises | ASTMD-2171 | Min. 3200 |
Kinematic viscosity at 135°C, cSt | ASTMD-2170 | Min. 400 |
Flash Point (Cleveland open cup)°C | ASTMD-92 | Min.220 |
Solubility in trichloroethylene,% | ASTMD-2040 | Min.99 |
Softening Point (R&B), °C | ASTMD-36 | Min.50 |
Penetration @ 25°C, 0.1mm 100gm, 5 sec | ASTMD -5 | 40-60 |
Tests on Residue from Thin Film Oven Tests/RTFOT | ||
I) Viscosity ratio at 60°C | ASTMD-2171 | Max.4.0 |
II) Ductility at 25°C, cm, after thin-film oven tests | ASTMD-113 | Min.25 |
Specific gravity @ 27/27° C | ASTMD-70 | Min.0.99 |