Hot Mix Asphalt Patching (old)

Asphalt ain’t rocket science, but there are several things that directly affect pavement performance. Paying attention to these critical details is important to achieving the expected performance. Over the years, through experience I have identified these factors as some that matter.” – Dwight Walker

Warm mix asphalt (WMA) is a group of processes that allow a reduction in the temperature at which an asphalt mix is produced and placed. A temperature reduction of 50 °F is fairly typical, with reductions up to 100 °F documented. There are many advantages to using WMA, including reduced mixing plant fuel consumption and decreased emissions. As a result, there has been a tremendous interest in WMA.