Pavement

This report presents a laboratory assessment of a warm mix produced using an organic additive (Sasobit wax). Three different types of mixes (control, Sasobit dry and Sasobit pre-blend) were produced at various mixing and compaction temperatures (ranging from 95 to 150 C), and their volumetrics (maximum density, bulk density and air voids) and performance (resilient modulus and rut resistance) were reviewed. In general, the Sasobit modifier appeared to mitigate the influence of using lower production temperatures. Other than providing relatively better compaction, it was unclear whether Sasobit provided any improvement in performance. However, it was noted that no reduction in performance was observed either.