Which road material is a mix of bitumen and aggregates used for paving because it is cheap, quick to lay, and easy to maintain?

Which road material is a mix of bitumen and aggregates used for paving because it is cheap, quick to lay, and easy to maintain?

• A. Asphalt
• B. Corduroy road
• C. Pavement
• D. Macadam

Answer: (A)

Asphalt is the road material that fits this description. It is a blend where bitumen acts as a sticky binder and coats together aggregates like sand and crushed stone. This mix is heated, laid down quickly, and then rolled to compact, forming a smooth, durable surface that’s water-resistant. Because it’s economical to produce, easy to lay, and straightforward to maintain or resurfaced, it’s widely used for roads. Other options don’t match this combination. Macadam is an older method using layers of crushed stone bound with tar rather than a modern bitumen-aggregate mix. Corduroy road uses logs laid across the surface, and pavement is a general term for a surfaced area rather than a specific material.

Asphalt is the road material that fits this description. It is a blend where bitumen acts as a sticky binder and coats together aggregates like sand and crushed stone. This mix is heated, laid down quickly, and then rolled to compact, forming a smooth, durable surface that’s water-resistant. Because it’s economical to produce, easy to lay, and straightforward to maintain or resurfaced, it’s widely used for roads.

Other options don’t match this combination. Macadam is an older method using layers of crushed stone bound with tar rather than a modern bitumen-aggregate mix. Corduroy road uses logs laid across the surface, and pavement is a general term for a surfaced area rather than a specific material.