Steps towards the detection of reclaimed asphalt pavement in superpave mixtures

For quality control and quality assurance purposes, it would be desirable to quantify the amount of reclaimed asphalt pavement (RAP) already incorporated in a recycled hot mixture. If RAP is incorporated in higher amounts than approved, without a proper design, it can affect the integrity of the mix and can compromise the performance and lifespan of the pavement. Twelve different laboratory prepared asphalt mixtures with variable virgin asphalt …