Oxidized bitumen 85/25


General description of oxidized bitumen 85/25

Bitumen 85/25 having a sol structure, recovered as a semi hard in the fractioned column under vacuum by applying an oxidation process or air blowing. The latter consists to pass air through the heated bitumen to raise an appropriate viscosity of the bitumen 85/25. This process produces a bitumen with a maintained flexibility while it will not flow when it is used, at an ambient temperature. When the bitumen is processed by air blowing, its viscosity is modified and the equilibrium mentioned above is therefore different.

Uses of 85/25 grade bitumen

It is use in the chemical, fuel, paints, lacquers, varnishes, paper-pulp-board, textile processing, road construction, pavement ,crack seal and repairmen, civil works, roofing, construction industries; sealing and insulating buildings, adhesive, construction materials additive, dust-binding, coating, flooring, insulating and impregnating agent, make rubber and plastic products. The bitumen products are for paving, roofing; also used in asphalt based paints for corrosion protection of metals, in lining public works structures, adhesives in electrical laminates, base for synthetic turf; typical uses for bitumen 85/25 include roofing, pipe coating, Portland cement pavement, hydraulic applications, paint manufacturing.

Packing of products

The ATDM is manufacturer of blown asphalt in various packing including kraft bag, meltable plastic bag, drum and bulk from penetration grade bitumen, which is blown by hot air in a controlled process until the desired specification is reached. The ATDM can be supplied in any grade and are designated by two numbers to indicate the softening point and penetration ranges. The oxidized bitumen grade 85/25 means softening point is 85°c and penetration is 25 desimillimiter is produced in compliance and conformity to ASTM standard and meets the following specification.

Guaranty/warranty of bitumen

ATDM guaranty the quality of bitumen with arrangement of international inspector to check quality and quantity of the bitumen on each shipment during the loading to vessel and controlling the production by qc team via batch test report before shipping. ATDM guaranty the quality to meet with ASTM/EN 13304:2009.

Bitumen 85/25 specification

Bitumen 85/25


Test method ASTM/EN13304

Specific gravity @ 25/25 cg



Penetration @ 25 c



Softening point c



Loss on heating(wt) %

0.2 Max


Flash point c

250 min


Solubility is CS2(wt) %

99.5 Max


Spot test



Our approvals

Hello how can i help you?