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Bitumen penetration grade 60/70 is semi 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.Bitumen 60/70 is most used
bitumen grade and basic material for all other bitumenious products.
What is bitumen 60/70?
Bitumen 60/70 has the highest-boiling point, heaviest and most polar
fraction from the vacuum distillation of crude oil. Bitumen 60 70 is
composed of asphaltene and maltene. The heavy insoluble asphaltene
molecules give bitumen 60/70 its body and softening point while the
maltenes are oily and make asphalt flexible. Asphaltene molecules are
soluble in aromatic solvents like toluene but insoluble in heptane. The
maltenes are heptane-soluble molecules and less aromatic.
Softening point and penetration of bitumen 60/70
Penetration grade bitumen supplied by is pure petroleum grade bitumen,
manufactured from vacuum bottom by passing hot air. The bitumen supplied by
is produced from remain of crude oil after cracking and removing
hydrocarbon. Penetration grade bitumen 60/70 has penetration between 60~70
desi-millimeter and softening point between 48 ~ 52C. The penetration grade
bitumen 60/70 has a thermoplastic property which is like as synthetic resin
material which gets softer with heating and hardens when cooled. This grade
of bitumen 60/70 has very strong viscosity compare to other grades.
Guaranty/warranty of bitumen 60/70
guaranty the quality of bitumen 60/70 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. Quaranty the quality to meet with ASTM/EN 12591.
Packing of bitumen 60/70
It is 180 (+/-2.5) Kg New Steel Drum, Original Package, 0.6 mm thickness of
Drum // Each 20” FCL: 110 Drums
Specification of penetration bitumen 60/70
SOURCE: Import-Export Bulletin Board (http://www.imexbb.com/)
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