Grade 30/40

Description of bitumen 30/40

Bitumen 30/40 is a kind standard penetration grade bitumen. The bitumen penetration grade 30/40 supplied by jey pasargad is produced from the vacuum residue (short residue) feedstock. Penetration grade bitumen are specified by the penetration and softening point test. Penetration grade bitumen 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.

Uses of bitumen 30/40

Bitumen 30/40 is suitable for road construction and repair for the asphalt pavements with superior properties. This type of bitumen used in the manufacture of hot mix asphalt for bases and wearing courses.

Softening point and penetration of bitumen 30/40

Penetration grade bitumen supplied by jey pasargad is pure petroleum grade bitumen, manufactured from vacuum bottom by passing hot air. The bitumen supplied by jey pasargad 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 55 ~ 63C. The penetration grade 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.

Application of bitumen penetration grade 30/40

Guaranty|warranty

jey pasargad 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. jey pasargad guaranty the quality to meet with ASTM/EN 12591.

Specification and analysis

Bitumen 30/40	Test method	Unit	Specification
Specific gravity @ 25°C	ASTM D70	kg/cm³	1.01-1.06
Penetration @ 25°C	ASTM D5	mm/10	30-40
Softening point	ASTM D36	°C	55-63
Ductility @25°C	ASTM D113	cm	100 min
Loss on heating	ASTM D6	wt %	0.2 max
Drop in penetration after heating	ASTM D5-D6	%	20 max
Flash point	ASTM D92	°C	250 min
Solubility in CS2	ASTM D4	wt %	99.5 min
Spot test	AASHOT102	–	Negative