What are the three components of a Superpave mix design?

The choice that identifies the three components of a Superpave mix design as binder selection, aggregate selection, and mixture design encapsulates the core elements critical to producing high-performance asphalt mixtures.

Binder selection is essential as it determines the asphalt's physical properties, including its strength and durability under varying temperature and load conditions. The type of binder used also influences the asphalt's resistance to deformation, oxidation, and moisture damage.

Aggregate selection is equally important, as aggregates provide the necessary structural framework and also contribute to the stability, workability, and durability of the asphalt mix. The right combination of aggregate size, shape, and gradation ensures proper voids and interlock necessary for optimal mixture performance.

Mixture design refers to the systematic process of combining the selected binder and aggregates in the right proportions to achieve the desired performance characteristics. This involves determining the optimal air void content and evaluating the mix's resistance to rutting, fatigue cracking, and thermal cracking, among other performance-related criteria.

The other options, while mentioning aspects related to asphalt paving, do not accurately represent the primary components of Superpave mix design as recognized in industry standards. The correct answer identifies the essential elements that work together to create a balanced and effective asphalt mixture suitable for various road conditions and