What is the purpose of tests like the Marshall or Superpave in quality control?

The purpose of tests like the Marshall or Superpave is to evaluate properties of asphalt mix. These tests are critical components in the quality control process for asphalt production and pavement design. The Marshall test determines optimal asphalt content and evaluates the stability and flow characteristics of the mix, which are essential for ensuring durability and performance under traffic loads. The Superpave method builds on this concept by incorporating additional factors such as temperature susceptibility and traffic volume, ensuring that the asphalt mix performs well in various environmental conditions and over time. This focus on evaluating the mix's properties directly contributes to the overall integrity and lifespan of the pavement, making it an essential practice in quality control within road construction and maintenance.