Bitumen Penetration Grade 50/70

General Description of Bitumen 50/70

PUBLTD bitumen penetration grade 50/70 is hard penetration grade bitumen using as paving grade bitumen suitable for road construction and repair also for the production of asphalt pavements with below technical specification. This grade of bitumen is mainly used in the manufacture of hot mix asphalt for bases and wearing courses.

Softening point and penetration of bitumen 50/70

Penetration grade bitumen supplied by PUBLTD is pure petroleum grade bitumen, manufactured from vacuum bottom by passing hot air. The bitumen supplied by PUBLTD is produced from remain of crude oil after cracking and removing hydrocarbon. Penetration grade bitumen 50/70 has penetration between 50~70 desi-millimeter and softening point between 52 ~ 58C. The penetration grade bitumen 50/70 has a thermoplastic property which is like as synthetic resin material which gets softer with heating and hardens when cooled. This grade of bitumen 50/70 has very strong viscosity compare to other grades.

Guaranty/warranty of bitumen 50/70

PUBLTD guaranty the quality of bitumen 50/70 with arrangement of international inspector to check quality and quantity of the bitumen during the loading to vessel and controlling the production by QC by batch test report before shipping. JGPco guaranty the quality to meet with ASTM/EN 12591.

Specification of penetration bitumen 50/70

Bitumen 50/70


Test method

Specific gravity @ 25/25 cg



Penetration @ 25 c



Softening point c



Ductility @25 c

100 min


Loss on heating(wt) %

0.2 Max


Drop in penetration after heating %

20 Max

D-6 D-5

Flash point c

250 min


Solubility is CS2(wt) %

99.5 Max


Spot test