Iran Oxidized Bitumen
Bitumen Grades 75/30, 85/25, 85/40, 95/25, 105/35, 115/15
Oxidized Bitumen or Blown bitumen is produced by blowing hot air into the penetration bitumen. This action makes the bitumen more rubbery than its original formula and it becomes harder bitumen. This bitumen recovery the weight loss under heating. Due to low thermal sensitivity, the softening point is much higher than regular bitumen and the penetration index (PI) is higher than road construction bitumen (8>PI>2) due to the letter has a gel-like structure because of asphalt accumulation.
This bitumen is mostly used in industry, such as roof insulation, flooring, industrial mastic, pipe coating, and paints. Specification of Oxidized bitumen is categorized based on softening points and penetration rate.
Atlas Oil has the capability to supply customers a wide range of this type of bitumen grades such as 75/30, 85/25, 85/40, 95/25, 105/35 and 115/15.
Oxidized Bitumen Specification
|Index||Test Metode||Oxidized Bitumen Grade|
|Softening Point (̊C)||ASTM D36||115±5||105±5||95±5||85±5||85±5||75±5|
|Peneteration at 25 ̊C||ASTM D5||15±5||35±5||25±5||40±5||25±5||30±5|
|Thermal Loss %||ASTM D1754||0.2||0.5||0.2||0.5||0.2||0.2|
|Solubility in trichloroethylene||ASTM D2042||99.5||99.5||99.5||99.5||99.5||99.5|