What are the main components of asphalt?

The main components of asphalt are aggregate and asphalt binder. The aggregate serves as the structural skeleton of the asphalt mixture, contributing strength and stability. It usually consists of stone, gravel, sand, or other granular materials that help to give the pavement its durability and resistance to deformation.

The asphalt binder, which is a byproduct of petroleum refining, acts as the glue that holds the aggregate particles together. It provides waterproofing and helps in the flexibility of the final product, allowing it to withstand various environmental conditions and traffic loads.

Understanding the role of these components is crucial for anyone involved in asphalt production and quality control, as the properties of the asphalt mixture depend heavily on the quality and correct proportioning of both the aggregate and the binder.