Bitumen Performance Grade 76 -10
Bitumen PG 76-10 is a high-performance paving binder designed for extreme temperature conditions. It exhibits excellent resistance to rutting and permanent deformation at high pavement temperatures, with a minimum dynamic shear value of 1 KPa at 76 °C and a low rotational viscosity of 0.61 Pa.s at 135 °C, ensuring easy handling and application during asphalt mixing and paving. Its high flash point of 334 °C guarantees safe operation during heating and mixing processes.
This bitumen also demonstrates outstanding durability under long-term aging and environmental stress. The Pressure Aging Vessel (PAV) test shows a maximum shear of 5000 KPa at 34 °C, while the Rolling Thin Film Oven (RTFO) test ensures a minimum shear of 2.2 KPa at 76 °C, confirming its stability against short-term aging. Additionally, the Bending Beam Rheometer (B.B.R) results at 0 °C—stiffness of 95.7 MPa and m-value of 0.32—highlight its excellent low-temperature cracking resistance, making it suitable for regions experiencing both high heat and extreme cold.
| Bitumen PG 76-10 Specification | ||||
|---|---|---|---|---|
| Test | Method | Unit | Result | Range |
| Dynamic Shear Rheometer (D.S.R) at 76 °C | ASTM D7175 | KPa | 1.38 | Min 1.0 |
| Rotational Viscometer (R.V) at 135 °C | ASTM D4402 | Pa.s | 0.61 | Max 3 |
| Change of Mass | ASTM D2872 | Wt% | 0.02 | – |
| Flash Point | ASTM D92 | °C | 334 | Min 220 |
| Spot Test | T 102 | – | Neg | Neg |
| Pressure Aging Vessel (PAV) ASTM D6521 | ||||
| Dynamic Shear Rheometer (D.S.R) at 34 °C | ASTM D7175 | KPa | 1800 | Max 5000 |
| Rolling Thin Film Oven Test (RTFO) ASTM D2872 | ||||
| Dynamic Shear Rheometer (D.S.R) at 76 °C | ASTM D7175 | KPa | 3.12 | Min 2.2 |
| Bending Beam Rheometer (B.B.R) at 0 °C, Stiffness | ASTM D6648 | MPa | 95.7 | Max 300 |
| Bending Beam Rheometer (B.B.R) at 0 °C, m-Value | ASTM D6648 | – | 0.32 | Min 0.3 |
