Bitumen grade 20/30 is a premium brand that is dark brown or black color similar to cement-shape semi-solid or viscous liquid form produced by the non-destructive refining of crude oil during petroleum refining.
Penetration Bitumen Grade 20/30
The exact chemical composition of bitumen is dependent on the chemical complexity of the original crude oil and the manufacturing process. Penetration grade bitumen 20/30 has penetration between 20~30 desi-millimeter and softening point between 55 ~ 63°C. The penetration grade bitumen 20/30 has a thermoplastic property which is like as synthetic resin material which gets softer with heating and hardens when cooled. This grade of bitumen 20/30 has very strong viscosity compare to other grades.
Application of bitumen 20/30 grade:
Penetration bitumen grade 20/30 is used for paving, road construction and used for hot mixed asphalt because of the properties of very strong viscosity compared to other grade.
Data Sheet of bitumen 20/30 grade:
|Bitumen 20/30||Specification||Test method|
|Specific Gravity @25/25cg||1.01/1.06||D-70|
|Penetration @25 Deg.C||20/30||D-5|
|Softening point, Ddeg.C||55/63||D-36|
|Ductility @ 25 Deg.C||100min||D-113|
|Loss on heating (WT) %||0.2 max||D-6|
|Drop in penetration after heating %||20 max||D-6, D-5|
|Flash point, Deg.C||250 min||D-92|
|Solubility IS CS2(WT) %||99.5 max||D-4|