Paving Bitumen (Straight Grade)- shall be prepared by the distillation of suitable crude,petroleum oil without subsequent blending with other grades. The material shall be homogenous and shall not foam when heated to 175°C. No mineral matter other than naturally contained in the materialshall be present
Paving Bitumen specification covers physical and chemical requirement for use in Roads,Airfields and allied construction. Also some of the grades may be used for Industrial purpose.
|Sr.No.||TEST PARAMETERS||VG-10||VG-30||VG-40||BIT 10/20|
|1.||Absolute viscosity at 60°C, poises, Min.||800||2400||3200||--|
|2.||Kinematic viscosity at 135 °C, cSt, Min.||250||350||400||---|
|3.||Flash point cleave land open cup, °C, Min.||220 °C||220 °C||220 °C||---|
|4.||Penetration at 25 °C,100 gm5 sec, 1/10 mm||80 - 100||50 - 70||40 - 60||15 ± 5|
|5.||Softening point (R&B), °C.,Min||40 °C||47 °C||50 °C||65 ± 10|
|6.||Matter soluble in Trichloroethylene, % by mass, Min.||99||99||99||95%|
|7.||Thin Film Oven Test, on Residue
|8.||Ductility at 25° C, cm, after TFOT Min.||75||40||25||--|
|9.||Loss on heating, oven test % by mass, Max.||-||-||-||2.0|
|10.||Ash, % by mass , Max.||-||-||-||1.0|
Construction and maintenance of Roadways, Saturant for roofing felt, electrical cables for manufacturing Bitumen Emulsions etc.
Back to Top