Bitumen Grade 30/40

Bitumen grades numbers are representing softness or hardness of bitumen (completely melted form of bitumen, just like liquid) by measuring the depth in 1/10th of mm to which a standard needle carrying a weight of 100gms penetrates in 5 seconds at a temperature of 25 degree Celsius.

If grade of bitumen is 80/100 then penetration value lies between 8 to 10 mm. This grade is mostly used in India. Bitumen is also graded based on viscosity grading. 80/100 belongs to VG 10 group. Other grades of bitumen can be 30/40 (3-4 mm penetration value on penetration test), 60/70 (6–7 mm penetration).

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Description

Bitumen Grade 30/40 Specifications

NIOC (National Iranian Oil Company) analysis according to international standard and S.G.S inspections approved.

QUALITY : Iran Oil Refinery Bitumen are manufactured and supplied to a quality system complying with and approved to ISO29001:2003, ISO14001:2004, OHSAS: 18001:1999.

SPECIFICATION OF BITUMEN GRADE 30/40

SPECIFIC GRAVITY@25/25°C 1.01/1.05 D. 70
PENETRATION @ 25°C 30/40 D. 5
SOFTENING POINT 55/63 D. 36
DUCTILITY @ 25° C 100       MIN D. 113
LOSS ON HEATING (WT)% 0.2       MAX D. 6
FLASH POINT 250       MIN D. 92
SOLUBILITY IN CS2 (WT)% 99.5     Max D. 4
ORGANIC MATTER 0.2       MAX D. 4
INSOLUBLE IN CS2 (WT)%
DROP IN PENETRATION AFTER HEATING % 20        MAX D-6& D-5
SPOT TEST NEGATIVE A.A.S.H.O.T.102

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