A study on the oxidation kinetics of warm mix asphalt

摘要

Warm mix asphalt (WMA) is increasingly used in pavements to reduce energy consumption and emissions, and to extend workability times. Literature reports on warm mix asphalt have addressed its usage, but its oxidation kinetics and possible effects on pavement durability are unknown. In this work, several popular types of WMAs were used in multi-temperature experiments to estimate oxidation kinetics parameters of an Arrhenius reaction model. Additionally, an example pavement aging simulation explored the potential effects of differences in activation energy on pavement aging.