asphalt

a black sticky substance which is the combination of dark bituminous pitch with sand or gravel, commonly used in building roads

Asphalt is a black, sticky substance made from a mixture of tar and materials like sand or gravel. It is commonly used for paving roads, parking lots, and driveways because it creates a smooth, durable, and weather-resistant surface. Asphalt is flexible, which allows it to withstand pressure from vehicles without cracking easily. It is also used in roofing and waterproofing. Asphalt is preferred for road construction because it is cost-effective, long-lasting, and easy to maintain.

a dark bituminous substance found in natural beds and as residue from petroleum distillation; consists mainly of hydrocarbons