Laboratory and Field Performance Measurements to Support the Implementation of Warm Mix Asphalt in Texas (5-5597-01-1)

An objective of this study was to monitor the performance of more than 10 warm asphalt (WMA) projects in the state. Several WMA technologies were included in the study (foaming, Advera, Evotherm, Rediset, Sasobit) and it was determined that performance of the warm mix was comparable to hot mix. In addition, mix from two warm mix projects were subjected to different curing times and temperatures and then evaluated for mixture volumetrics and performance properties. Results from this study lend support to the current procedures TxDOT has adopted.