Asphalt concrete is a composite material commonly used in the construction of roads, parking lots, and runways. It consists of a mixture of aggregates, such as sand and gravel, combined with a binder, typically asphalt, which is a sticky, black substance derived from petroleum. This combination creates a durable surface that can withstand heavy traffic and varying weather conditions. The production of asphalt concrete involves heating the asphalt to reduce its viscosity, allowing it to coat the aggregates effectively. Once mixed, the material is laid down in layers and compacted to form a solid surface. Its flexibility and resistance to cracking make it a popular choice for infrastructure projects worldwide.