General description of oxidized bitumen 85/40
Generally, the bitumen 85/40 is essentially assessed by the technology of production, the relative concentration of resins, and asphaltene. The respective components in the bitumen 85/40 particular role giving a synergistic performance to the bitumen. Asphaltene is the heaviest and responsible components for a non-newtonian character of bitumen 85/40, and they have a direct influence on the softening point and the rigidity of the bitumen. The resins promote good adhesion of bitumen to the surface of the minerals and of ductility (elasticity). Saturates and aromatics are responsible for the rheological property of the bitumen, such as viscosity.
Uses of oxidized asphalt 85/40
Oxidised asphalt 85/40 uses 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, insulating and impregnating agent, make rubber and plastic products. The blown asphalt 85/40 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 oxidized asphalt 85/40 include roofing, pipe coating, Portland cement pavement, hydraulic applications, paint manufacturing.
Packing of blown asphalt 85/40
The ATDM is manufacturer of blown asphalt 85/40 in various packing including kraft bag, meltable plastic bag, drum and bulk blown asphalt 85/40 from penetration grade bitumen, which is blown by hot air in a controlled process until the desired specification is reached. The ATDM oxidised
bitumen 85/40 can be supplied in any grade and are designated by two numbers to indicate the softening point and penetration ranges. The oxidized asphalt grade 85/40 means softening point is 85°c and penetration is 40 desimillimiter is produced in compliance and conformity to ASTM standard and meets the following specification.
Guaranty/warranty of blown bitumen 85/40
ATDM guaranty the quality of blown bitumen 85/40 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.
Analysis of bitumen 85/40
Test method ASTM/EN13304
Specific gravity @ 25/25 cg
Penetration @ 25 c
Softening point c
Loss on heating(wt) %
Flash point c
Solubility is CS2(wt) %