Which petroleum product is used to surface the roads?

• A. Coal tar
• B. Bitumen
• C. Paraffin wax
• D. Cement

The petroleum product commonly used to surface roads is Bitumen. This material is a sticky, black substance derived from crude oil and is essential for creating durable and weather-resistant road surfaces.

Why Bitumen is Preferred

Bitumen is favored for several reasons:

• Durability: It withstands heavy traffic and harsh weather conditions.
• Adhesion: It effectively binds aggregates, ensuring a strong surface.
• Flexibility: It can expand and contract with temperature changes, reducing cracking.

Other Options Explained

Here’s a brief overview of the other options:

• Coal Tar: Used in some applications but less common for road surfacing.
• Paraffin Wax: Primarily used in candles and packaging, not for roads.
• Cement: Used in concrete but not suitable for asphalt surfaces.

In summary, Bitumen is the correct choice for road surfacing due to its unique properties that enhance road performance and longevity.