Performance Grade (PG) Bitumen PG 70-16 is a premium asphalt binder engineered under the Superpave performance grading system to deliver superior performance in hot climates with colder winters. This grade is designed to resist rutting and permanent deformation at high pavement service temperatures up to 70°C, while also providing excellent flexibility and crack resistance at low service temperatures down to -16°C. Its balanced rheological characteristics make it highly suitable for heavily trafficked highways, airports, and industrial pavements exposed to extreme temperature variations.
Performance Grade (PG) Bitumen PG 70-16 is a premium asphalt binder engineered under the Superpave performance grading system to deliver superior performance in hot climates with colder winters. This grade is designed to resist rutting and permanent deformation at high pavement service temperatures up to 70°C, while also providing excellent flexibility and crack resistance at low service temperatures down to -16°C. Its balanced rheological characteristics make it highly suitable for heavily trafficked highways, airports, and industrial pavements exposed to extreme temperature variations.
| Specification | Value |
|---|---|
| Performance Grade (PG) | 70-16 |
| High-Temperature Grade | 70°C (resistant to rutting and deformation) |
| Low-Temperature Grade | -16°C (resistant to thermal cracking) |
| Viscosity at 135°C | 0.3 – 0.6 Pa·s |
| Dynamic Shear Rheometer (DSR), G/sin δ* | ≥ 1.00 kPa at 70°C (unaged) |
| Dynamic Shear Rheometer (RTFO-aged), G/sin δ* | ≥ 2.20 kPa at 70°C |
| Bending Beam Rheometer (BBR) stiffness at -16°C | ≤ 300 MPa |
| BBR m-value at -16°C | ≥ 0.300 |
| Flash Point (COC) | Minimum 230 °C |
| Solubility in Trichloroethylene | ≥ 99 % |
These parameters ensure a high-performance binder that maintains durability under both high-temperature traffic stresses and low-temperature cracking risks.
• Superior rutting resistance: Withstands heavy axle loads and high-temperature conditions.
• Enhanced thermal cracking resistance: Remains flexible and prevents cracking at -16°C.
• Excellent workability: Maintains optimal viscosity for mixing and compaction in asphalt plants.
• High adhesion to aggregates: Ensures strong bond and long-lasting pavement life.
• Resistance to aging and oxidation: Provides extended service life under environmental exposure.
• Highways and expressways in regions with hot summers and cold winters.
• Airport runways and taxiways exposed to both heavy loads and temperature extremes.
• Urban arterial roads and regional networks with high traffic volumes.
• Industrial pavements, ports, and container terminals requiring durability and flexibility.
• Superpave asphalt mixtures designed for extreme climatic conditions.
Bitumen PG 70-16 is supplied in:
• New steel drums (200 kg net)
• Jumbo bags (1 MT)
• Bulk shipments for large-scale projects
• Store in dry, ventilated storage areas, away from moisture and direct heat.
• Avoid heating above 175–180°C to prevent degradation.
• Use appropriate personal protective equipment (PPE) when handling.
• Follow Superpave guidelines and international transport standards for safe handling
