At the bitumen production reactor, during the air acting, the mixture of the two Vacuum Bottom (VB) and Vacuum Silabes (VS) feedstock pressed under a special and temperature pressure between 200-300 C of which the hydrogen atoms content in bitumen molecular oxidize to oxygen of air, and obtains with higher hydrocarbons polymerization reaction that has lower penetration and bigger softening points rather than the primary pure bitumen. This kind of bitumen has the softening point of 90 and permeability of 15.

Characteristics

 

Bitumen R90-15 Specification Test method
Specific gravity @25/25 C 1.05 approx. D-70
Penetration @25 C 10/20 D-5
Softening point C 85/95 D-36
Ductility @25 C 1.5 min. D-113
Loss on heating (wt)% 0.2 max. D-6
Flash point C 225 max. D-92
Solubility in CS2 (wt)% 99 min. D-4
 

 

Usage

Covering of the floor of water channels; the concrete surface cracks; to cover the cracks in the concrete surface; for other construction works; producing different types of moisture insulation.