What is 30 40 grade bitumen?
Iran bitumen penetration grade 30-40 is semi hard penetration grade bitumen using as paving grade bitumen suitable for road construction and repair also for the production of asphalt pavements with below technical specification. This grade of bitumen is mainly used in the manufacture of hot mix asphalt for bases and wearing courses.Bitumen 30-40 is most used bitumen grade and basic material for all other bituminous products.
|Density@25˚C||Kg/m3||1010-1060||ASTM D7 or D3289|
|Softening Point||˚C||55-63||ASTM D36|
|Ductility@25˚C||cm||100 min||ASTM D113|
|Loss on heating||Wt%||0.2 Max||ASTM D6|
|Drop in Penetration after heating||%||20 Max||ASTM D5|
|Flash Point||˚C||250 Min||ASTM D92|
|Solubility in Trichloroethylene||Wt%||99.05 Min||ASTM D2042|
|Spot Test||—||Negative||AASHTO T102|
|Viscosity@135˚C||cSt||400 Min||ASTM D2170|
Definition of bitumen penetration grade 30/40
Penetration grade bitumen supplied by Iran Bitumen Co. is pure petroleum grade bitumen, manufactured from vacuum bottom by passing hot air. The bitumen supplied by Iran Bitumen Co. is produced from remain of crude oil after cracking and removing hydrocarbon. Penetration grade bitumen 30/40 has penetration between 30~40 desi-millimeter and softening point between 52 ~ 60C. The penetration grade bitumen 30-40 has a thermoplastic property which is like as synthetic resin material which gets softer with heating and hardens when cooled. This grade of bitumen 30/40 has very strong viscosity compare to other grades.
Iran Bitumen Co. guaranty the quality of bitumen 30-40 with arrangement of international inspector to check quality and quantity of the bitumen during the loading to vessel and controlling the production by QC by batch test report before shipping. Iran Bitumen Co. bitumen quality is as per ASTM/EN 12591.
Application of bitumen penetration grade 30/40
Iran bitumen Company guaranty the quality of bitumen penetration grade 30/40 with the arrangement of the international inspector to check quality and quantity of the bitumen penetration grade 30/40 during the loading to the vessel and controlling the production by QC by batch test report before shipping. iranbitumen Company guarantees the quality to meet with ASTM.
Description of bitumen 30/40
Bitumen 30/40 is a kind standard penetration grade bitumen. The bitumen penetration grade 30/40 supplied by IRANBITUMEN CO is produced from the vacuum residue (short residue) feedstock. Penetration grade bitumens are specified by the penetration and softening point test. Penetration grade bitumens have a thermoplastic property which causes the material to soften at high temperatures and to harden at low temperatures.
The temperature-vs-stiffness relationship of bitumen is dependent on the type of crude oil and its refining method. Bitumen penetration grade 30/40 is semi-hard penetration grade bitumen used as a paving grade bitumen which is suitable for road construction and repair. It is also used for the production of asphalt pavements with technical specifications listed below. This grade of bitumen is mainly used in the manufacturing of hot mix asphalt for bases and wearing courses. Bitumen penetration grade 30/40 is one of the most used bitumen grades and it’s a basic material for all other bituminous products.