General Description of Bitumen 20/30
Penetration Grade Bitumens 20/30 are specified by the penetration and softening point test. The designation is by penetration range only. The penetration grade bitumens have a thermoplastic property which causes the material to soften at high temperatures and to harden at lower temperatures. The Bitumen mode is dependent on temperature. The temperature-vs-stiffness relationship of bitumen is dependent on the type of crude oil and its refining method. Bitumen Penetration Grade 20/30 is mainly used in the manufacture of hot mix asphalt for bases and wearing courses. It is a kind of bitumen and standard penetration grade. This type is petroleum-grade bitumen, manufactured from fractional- vacuum destination of crude oil. Penetration Bitumen Grade 20/30 is Semi-Hard penetration grade bitumen used as Paving Grade Bitumen suitable for road construction and repair also for the production of asphalt pavements with below Penetration Bitumen 20/30 Specifications. Penetration determines the hardness of bitumen by measuring the depth to which a standard loaded needle will vertically penetrate in 5 seconds, in a sample of bitumen maintained at a temperature of 25 degrees Celsius.
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Application of Bitumen 20/30
This grade of bitumen is also mainly used in the manufacture of hot mix asphalt. also, Bitumen is suitable for road construction and repair for asphalt pavements with superior properties. Bitumen is used for hot mixed asphalt because of the properties of very strong viscosity compared to other grades. Also used in specialized applications like airport runways and also in very heavy traffic volume roads in coastal cities in the country.
Guaranty of Bitumen 20/30
The quality of bitumen penetration grade with the arrangement of the international inspector to check the quality and quantity of the bitumen penetration during the loading to the vessel and control the production by QC by batch test report before shipping.
Packing of Bitumen Grade 20/30
Bitumen grade 20/30 is commonly packed in new steel drums, 150, 180 & 220 Kg barrels and Jumbo Bags or Bitubag and 10 & 20kg Tubular cartons.
Specification of Bitumen 20/30
| Bitumen 20/30 | Test method | Unit | Specification |
|---|---|---|---|
| Penetration – 25°C, 100g, 5s | EN 1426 | mm | 20-30 |
| Softening Point (Ring & Ball) | EN 1427 | °C | 53/65 |
| Kinematic Viscosity @ 135⁰C | EN 12595 | mm²/s | 530 Min |
| Solubility | EN 12592 | % | 99 Min |
| Flashpoint (Cleveland Open) | EN 22592 | °C | 240 Min |
| Change in mass (m/m) | EN12607-1 | % | 0.5 Max |
| Retained Penetration 25°C, 100g, 5s (% of original) | EN 1426 | % | 55 Min |
| Increase in softening point | EN 1427 | °C | 8 Max |
