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.
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.
|Specific Gravity @25 (°C)||1.01/1.06||ASTM D-70|
|Penetration @25 (°C)||20/30||ASTM D-5|
|Softening point, (°C)||55/63||ASTM D-36|
|Ductility @ 25 (°C)||100 min||ASTM D-113|
|Loss on heating (wt%)||0.2 max||ASTM D-6|
|Drop in penetration after heating %||20 max||ASTM D-6
|Flash point, (°C)||250 min||ASTM D-92|
|Solubility IS CS2 (wt%)||99.5 max||ASTM D-4|
- Poly Bag
- For paving
- Road construction
- Used for hot mixed asphalt because of the properties of very strong viscosity compared to other grade