Question

Name the petroleum product used for surfacing of roads.

Answer 1

“Petroleum is a crude oil which is naturally occurring and present beneath the earth's surface that can be refined into fuel by distillation”. Petroleum is a fossil fuel, meaning it is produced by the decomposition of organic matter over millions of years.

Complete step by step solution:

In the question it is mentioned that the name is the petroleum product used for surfacing of roads.
Generally Bitumen is the product used for surfacing of roads. Previously coal-tar was used for the surfacing of roads.
- Bitumen is a viscous liquid mixture of hydrocarbons produced naturally as a residue from fractional distillation of petroleum crude oil.
- Bitumen is also called Asphalt.
- Bitumen obtained by partial distillation of petroleum crude oil.
Additional information:
- The composition of the Bitumen is carbon-87%, hydrogen-11%, and oxygen-2% .
- The bitumen produced in solid or semi-solid state with black color or brown color.
- Bitumen is used in hydraulics, erosion control catchment areas, swimming pools, waste ponds, water proofing, and Dyke protection etc.
- The Bitumen can be classified into the following grade types.

1. Penetration Grade Bitumen
2. Oxidized Bitumen Grades
3. Cut Back Bitumen
4. Bitumen Emulsion
5. Polymer Modified Bitumen

Note: Don’t be confused with the words petroleum and Bitumen.
Petroleum is a crude oil obtained from earth’s crust. One of the products obtained from the fractional distillation of petroleum is Bitumen. Bitumen has a high boiling point and is used for various purposes.