Paving grade bitumen 20/30 is the hardest paving grade bitumen offered by ORLEN Group. Its high softening point and high sensitivity to low-temperature cracks renders it recommendable solely for the binder and base courses of high-stiffness modulus asphalt concrete (AC EME) in regions with suitable climate. Courses with bitumen 20/30 should not be left over the winter period without being covered with the next course. Additionally, for main roads, in WT-2 part I of 2014 [6] are given special requirements and climate zones where specific types of binders (paving grade 20/30 or polymer modified) are used in AC EME,
2.Properties
Reference standard: EN 12591:2009
| Property |
Unit |
Test Method |
Requirement
|
|---|
| Penetration at 25°C |
0.1 mm |
EN 1426 |
20 - 30 |
| Softening point |
°C |
EN 1427 |
55 - 63 |
| Resistance to hardening at 163°C |
|
EN 12607-1 (RTFOT method) |
- |
Retained penetration
|
%
|
EN 12607-1 (RTFOT method) |
≥ 55
|
Increase in Softening point
|
°C
|
EN 12607-1 (RTFOT method)
|
≤ 8
|
Change of mass* (absolute value)
|
% |
EN 12607-1 (RTFOT method) |
≤ 0.5
|
| Flash point |
°C
|
EN ISO 2592 |
≥ 240 |
Solubility
|
% (m/m)
|
EN 12592
|
≥ 99.0
|