Evaluation of WMA Healing Properties Using Atomic Force Microscopy

Warm Mix Asphalt (WMA) technology has received considerable attention in past few years due to its benefits in reducing energy consumption and pollutant emissions during production and placement of asphalt mixtures, widening the paving season, and increasing the pace of the construction process. However, many concerns and questions are still unanswered regarding its long-term performance. One of those questions is the effect of using WMA technology on the healing characteristics of asphalt materials, which has significant impact on their performance.

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