Bitumen VG-30

Bitumen VG-30 is a viscosity grade bitumen which is primarily used for the construction of extra-heavy bitumen pavements that have to bear significant traffic loads. Bitumen VG-30 is the most widely used type of bitumen in road construction, insulation, building construction industries. VG-30 bitumen is a popular grade of bitumen in India.

Advantages of using VG-30

  • Bitumen VG-30 is perfect for the Indian subcontinental weather. It is suitable for the temperature above 30◦
  • Bitumen VG-30 is the Bitumen with higher viscosity hence it is suitable for the clayed soil.

Specifications of Bitumen VG-30

Characteristics Specifications Test Method
Penetration @ 25°C,100 gm,0.1 mm, dmm
>45
IS 1203
Absolute Viscosity at 60°C, Poises
2400-3600
IS 1206 (Part 2)
Kinematic Viscosity at 135°C, cSt
>350
IS 1206 (Part 3)
Flash Point (Cleveland Open Cup,) °C
>220
IS 1448(P:69)
Softening Point (R&B), °C
>47
IS 1205
Solubility in trichloroethylene, %
>99
IS 1216
Test on RTFO Aged Residue
Viscosity ratio at 60°C
<4
IS 1206(Part 2)
Ductility at 25°C, cm
>40
IS 1208

Bitumen VG-40

Bitumen VG-40 is mainly used in areas with high pressure and heavy traffic loads. Due to the high viscosity, it is more appropriate for improving resistance to shoving and other problems associated with higher temperatures and heavy traffic loads.

Advantages of using VG-40

  • It is suitable for a temperature above 40◦
  • It is a preferred type of bitumen when heavy traffic load is expected.

Specifications of Bitumen VG-40

Characteristics Specifications Test Method
Penetration @ 25°C,100 gm,0.1 mm, dmm
>35
IS 1203
Absolute Viscosity at 60°C, Poises
3200-4800
IS 1206 (Part 2)
Kinematic Viscosity at 135°C, cSt
>400
IS 1206 (Part 3)
Flash Point (Cleveland Open Cup,) °C
>220
IS 1448(P:69)
Softening Point (R&B), °C
>50
IS 1205
Solubility in trichloroethylene, %
>99
IS 1216
Grade Absolute Viscosity Range Applications
VG-30
2400-3600
Bitumen VG-30 maximizes asphalt performance in hot regions. It is the most used bitumen amongst the all grade.
VG-40
3200-4000
Bitumen VG-40 is mainly used in areas with high traffic loads such as NHAI roads. Since its viscosity and softening point is comparitavely high, It is well suited for road construction in hot weather.