What is the purpose of the superpave design procedure?

The superpave design procedure was developed to optimize hot mix asphalt (HMA) mixture design and ensure that the final product performs well under various environmental conditions and traffic loads. This methodology focuses on evaluating and selecting the appropriate materials, including aggregates and asphalt binder, and determining the right proportions to meet specific performance criteria.

By accounting for factors such as climate, traffic, and pavement structure, the superpave approach enhances the durability and longevity of asphalt pavements. The adoption of this design method directly impacts the overall performance of the paving material, leading to improved resistance to rutting, cracking, and moisture damage. Therefore, the primary purpose of superpave is to create a well-designed mix that meets both the engineering requirements and serviceability expectations for different applications.