Bitumen 50/70 is a widely used penetration grade bitumen that offers a perfect balance between flexibility and strength. Produced by the controlled distillation of crude oil, this grade is classified as a medium-hard binder with excellent performance in a wide range of paving and construction projects. Its penetration value makes it softer than grades like 35/50 and 40/50, providing better workability while maintaining sufficient durability under heavy traffic loads.
Bitumen 50/70 is a widely used penetration grade bitumen that offers a perfect balance between flexibility and strength. Produced by the controlled distillation of crude oil, this grade is classified as a medium-hard binder with excellent performance in a wide range of paving and construction projects. Its penetration value makes it softer than grades like 35/50 and 40/50, providing better workability while maintaining sufficient durability under heavy traffic loads.
| Specification | Value |
|---|---|
| Penetration at 25°C | 50 – 70 (0.1 mm) |
| Softening Point (R&B) | 46 – 54 °C |
| Flash Point (COC) | Minimum 230 °C |
| Ductility at 25°C | Minimum 100 cm |
| Specific Gravity at 25°C | Approx. 1.01 g/cm³ |
| Solubility in Trichloroethylene | ≥ 99.5 % |
| Loss on Heating (163°C, 5h) | ≤ 0.2 % |
This makes Bitumen 50/70 a versatile paving grade suitable for both moderate and warm climates, ensuring durability and resistance against deformation.
• Workability and flexibility: Easier mixing and application compared to harder penetration grades.
• Durability under load: Maintains stability under medium to heavy traffic conditions.
• Thermoplastic performance: Softens when heated and hardens when cooled, ensuring excellent aggregate binding.
• Resistance to aging: Designed to perform well under long-term exposure to weather and oxidation.
• Versatility: Compatible with asphalt mixtures for diverse construction needs.
• Highways and main roads: Particularly suitable for urban and intercity traffic.
• Airport pavements: Withstands load-bearing demands in moderate climates.
• Industrial sites and parking areas: Reliable for pavements exposed to medium to heavy vehicle activity.
• Asphalt production: Commonly used in hot mix asphalt (HMA) designs for durable surfaces.
• Infrastructure projects in moderate climates: Prevents premature cracking or rutting.
Bitumen 50/70 is typically supplied in:
• New steel drums (200 kg net)
• Jumbo bags (1 MT)
• Bulk shipments for large infrastructure projects
• Store in cool and ventilated facilities, away from direct sunlight.
• Use protective equipment to avoid contact with hot bitumen.
• Heating should be carefully controlled; maximum safe temperature is 200°C.
• Follow international safety and occupational health standards during storage and application.
