Hiwa Oil Co, bitumen penetration grade 160/220 is used mainly as a paving grade, which is suitable for road construction, and maintenance, and also water proof projects. Bitumen 160/220 is one of the other most used bitumen.
Penetration bitumen grade 160/220 is produce by process of vacuum Bottom (VB) and air in the reactor. And due to the control of the process conditions, we reaching to pure quality of penetration grade bitumen 160/220 which has a penetration 160 to 220. The penetration grade bitumen 160/220 has a thermoplastic property which causes the material to soften at high temperatures and to harden at lower temperatures.
Guaranty and safety of penetration grade bitumen 160/220
Hiwa Oil Co, guaranty the quality of penetration grade bitumen 160/220, while inspecting by international inspection companies, the both quality and quantity of Penetration Bitumen grade 160/220, at loading port before loading and completing containers stuffing. The penetration Bitumen grade 160/220 also has its own prove of product quality of each batches by QC, while producing in refinery and before shipping. Hiwa Oil Co, guarantees the quality which meet with ASTM, according to following specification.
Specification of penetration bitumen 160/220
|Bitumen 160-220||Specification||Test method|
|Penetration @ 25 c||160-220||D.5|
|Softening point c||35 min||D.36|
|Ductility @25 c||100 Min||D.113|
|Loss on heating(wt) %||0.5 Max||D.6|
|Flash point c||218 Min||D.92|
|Solubility in CS2(wt) %||99.0 Min||D.4|
|Drop in penetration after heating %||20 Max||D.5|
|Density @25 c||1.000/1.05||D.70/D.3289|
|Kinematic Viscosity@135ºc mm2/s||135 min||ASTM D 2171|