Viscosity Grade (VG)

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 Viscosity Grade (VG)

 

Classified based on viscosity, VG bitumen is suitable for asphalt mixtures, including hot mix asphalt (HMA) and warm mix asphalt (WMA). It ensures optimal performance and durability in different climates and traffic conditions.

 

  • VG 10: Suitable for low-traffic roads and light-duty applications, offering good workability and durability.
  • VG 20: Ideal for moderate-traffic roads and general-purpose asphalt mixes, providing a balance of viscosity and performance.
  • VG 30: Designed for high-traffic roads and heavy-duty applications, offering superior resistance to deformation and cracking.

 

Application

  • Road Construction: Viscosity grade bitumen is widely used as a binder in the construction of roads, highways, and pavements.
  • Asphalt Mixes: It is commonly utilized in the production of hot mix asphalt (HMA) for surfacing roads, parking lots, driveways, and other paved areas.
  • Waterproofing: Viscosity grade bitumen is employed in manufacturing bituminous waterproofing membranes for roofs, basements, and other waterproofing applications.
  • Industrial Applications: It finds use in various industrial applications such as manufacturing bitumen-based coatings, sealants, adhesives, and paints.
  • Road Maintenance: Viscosity grade bitumen is utilized in road maintenance and repair projects for patching, crack sealing, and pothole repair.

 

VG 10

Bitumen Grade VG 10 Amount Test Method
Viscosity at 60°C (Poises) 800-1200 ASTM D 2117 IS 1206
Kinematic Viscosity at 135°C (CST), Min 250 ASTM D 2170 IS 1206
Penetration at 25°C (0.1 mm), Min 80 ASTM D5 IS 1203
Softening Point (°C), Min 40 ASTM D36 IS 1205
Ductility at 25°C (cm), Min 75 ASTM D 36 IS 1208
Flash Point (°C), Min 220 ASTM D 92 IS 1448
Solubility in TCE (%WT), Min 99 ASTM D 2042 IS 1216
Test on residue from rolling thin film oven test /RTFOT
Viscosity Ratio at 60°C, Max 4 ASTM D 2171 IS 1206
Ductility at 25°C (cm), Min 75 ASTM D 36 IS 1208

 

VG 20

Bitumen Grade VG 20 Amount Test Method
Viscosity at 60°C (Poises) 1600-2400 ASTM D 2117 IS 1206
Kinematic Viscosity at 135°C (CST), Min 300 ASTM D 2170 IS 1206
Penetration at 25°C (0.1 mm), Min 60 ASTM D5 IS 1203
Softening Point (°C), Min 45 ASTM D36 IS 1205
Ductility at 25°C (cm), Min 50 ASTM D 36 IS 1208
Flash Point (°C), Min 220 ASTM D 92 IS 1448
Solubility in TCE (%WT), Min 99 ASTM D 2042 IS 1216
Test on residue from rolling thin film oven test /RTFOT
Viscosity Ratio at 60°C, Max 4 ASTM D 2171 IS 1206
Ductility at 25°C (cm), Min 50 ASTM D 36 IS 1208

VG 30

Bitumen Grade VG 30 Amount Test Method
Viscosity at 60°C (Poises) 2400-3600 ASTM D 2117 IS 1206
Kinematic Viscosity at 135°C (CST), Min 350 ASTM D 2170 IS 1206
Penetration at 25°C (0.1 mm), Min 45 ASTM D5 IS 1203
Softening Point (°C), Min 47 ASTM D36 IS 1205
Ductility at 25°C (cm), Min 40 ASTM D 36 IS 1208
Flash Point (°C), Min 220 ASTM D 92 IS 1448
Solubility in TCE (%WT), Min 99 ASTM D 2042 IS 1216
Test on residue from rolling thin film oven test /RTFOT
Viscosity Ratio at 60°C, Max 4 ASTM D 2171 IS 1206
Ductility at 25°C (cm), Min 40 ASTM D 36 IS 1208

VG 40

Bitumen Grade VG 40 Amount Test Method
Viscosity at 60°C (Poises) 3200-4800 ASTM D 2117 IS 1206
Kinematic Viscosity at 135°C (CST), Min 400 ASTM D 2170 IS 1206
Penetration at 25°C (0.1 mm), Min 35 ASTM D5 IS 1203
Softening Point (°C), Min 50 ASTM D36 IS 1205
Ductility at 25°C (cm), Min 25 ASTM D 36 IS 1208
Flash Point (°C), Min 220 ASTM D 92 IS 1448
Solubility in TCE (%WT), Min 99 ASTM D 2042 IS 1216
Test on residue from rolling thin film oven test /RTFOT
Viscosity Ratio at 60°C, Max 4 ASTM D 2171 IS 1206
Ductility at 25°C (cm), Min 25 ASTM D 36 IS 1208