What is Asphalt?
Asphalt, also known as bitumen, is a black, sticky, and highly viscous material derived from petroleum. It is widely used in road construction as a binding agent that holds together aggregates such as sand, gravel, and crushed stone. The result is a smooth, durable surface ideal for roads, highways, airports, and parking lots.
There are two main types of asphalt:
- Hot mix asphalt – commonly used for road paving due to its strength and durability.
- Cold mix asphalt – typically used for temporary road repairs and patching.
Asphalt is highly valued for its water resistance, flexibility, and long-term durability, making it a key component in modern infrastructure projects.
Asphalt mixtures are produced by heating and blending aggregates, including fines, with bitumen at high temperatures. The hot mix is then discharged into tipper trucks and transported to construction sites for paving. The final product offers a smooth and resilient driving surface that can withstand heavy traffic and varying weather conditions.
To meet diverse project requirements, asphalt mixtures can be customized to create different grades and types—ranging from high-performance mixes for airport runways to standard formulations for city roads and highways.
Asphalt products include:
- Asphaltic wearing course
- Asphaltic binder course
- Dense bituminious macadam
- Stone mastic asphalt