Hiwa Oil Co, bitumen penetration grade 30/40 is used mainly as a paving grade, which is suitable for road construction, and maintenance. This grade of bitumen is normally used in the manufacturing of hot mix asphalt for pavement bases and wearing courses. Bitumen 30/40 is one of the most used bitumen grades among all other bituminous products.
Penetration bitumen grade 30/40 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 30/40 which has a penetration between 30/40. Bitumen is specified by the penetration and softening point test. The penetration grade bitumen 30/40 has a thermoplastic property which causes the material to soften at high temperatures and to harden at lower temperatures. 30/40 is one of the most used bitumen grade for paving constructions.
Guaranty and safety of penetration grade bitumen 30/40
Hiwa Oil Co, guaranty the quality of penetration grade bitumen 30/40, while inspecting by international inspection companies, the both quality and quantity of Penetration Bitumen grade 30/40, at loading port before loading and completing containers stuffing. The penetration Bitumen grade 30/40 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 30/40
|Bitumen 30-40||Specification||Test method|
|Penetration @ 25 c||30/40||D.5|
|Softening point c||55/63||D.36|
|Ductility @25 c||100 Min||D.113|
|Loss on heating(wt) %||0.2 Max||D.6|
|Flash point c||250 Min||D.92|
|Solubility in CS2(wt) %||99.05 Min||D.4|
|Drop in penetration after heating %||20 Max||D.5|
|Density @25 c||1.01/1.06||D.70/D.3289|