Description of bitumen 50/70
Bitumen penetration grade 50/70 is a standard penetration grade bitumen usually used as a paving grade bitumen for roadworks and also used to manufacture hot-mix asphalt. Our penetration grade bitumen is a petroleum grade bitumen, manufactured from fractional/vacuum distillation of crude oil. The grades of our bitumen are specified by the penetration and softening point test. The term 50/70 are actually its penetration range at 25°C (from 50 to 70 mm/10). Our penetration grade bitumens have a thermoplastic property which causes the material to soften at high temperatures and to harden at lower temperatures. This unique temperature and viscosity relationship is important when determining the performance parameters such as adhesion, rheology, application temperatures and durability.
Uses of bitumen 50/70
Bitumen 50/70 is suitable for road construction and repairs. It is also used in the manufacture of hot mix asphalt for bases and wearing courses.
Properties of bitumen 50/70
Bitumen Malaysia’s bitumen 50/70 is fully qualified and guaranteed through the expertise of our international inspectors to ensure the quality meets the industry standards. Bitumen Malaysia’s bitumen is guaranteed to meet the international standard of European Standard DIN EN 12591:99 as well as the ASTM standard.
Technical specification of our bitumen 50/70
|Bitumen 50/70||Test method||Unit||Specification|
|Penetration @25°C||IP 49||mm/10||50-70|
|Softening point||IP 58||°C||46-54|
|Kinematic Viscosity @135⁰C||IP 370||mm²/s||295 min|
|Flashpoint||IP 36||°C||230 min|
|Solubility in CS2||IP 47||wt%||99 min|