Testing High-RAP Mixes with Asphalt Rejuvenators
The use of reclaimed asphalt and recycled asphalt materials is becoming increasingly widespread. High-RAP mixtures, or those defined as those containing more than 25% RAP by total mix weight, can offer significant environmental and economic benefits by reducing reliance on virgin aggregates and binder. However, increasing RAP content can introduce performance challenges. The aged binder in RAP is typically stiff and brittle, which can negatively impact cracking resistance and long-term durability. [...]
