What percentage of the total asphalt mixture do aggregates normally constitute?

Aggregates typically constitute a significant portion of asphalt mixtures, usually ranging from 90 to 96% by total weight. This high percentage reflects the fundamental role aggregates play in providing strength, stability, and durability to the asphalt pavement.

When mixed with bitumen, aggregates help to form a composite material that can withstand traffic loads, environmental conditions, and other stresses. Their size and gradation are crucial for achieving the desired performance properties in the final pavement.

In contrast, other components of the asphalt mix, such as the asphalt binder, are present in much smaller percentages, indicating that aggregates are the primary constituent by weight. Understanding this percentage is essential for mix design, construction practices, and performance evaluations in roadway applications.