Micromechanical and Chemical Characterization of Foamed Warm-Mix Asphalt Aging

This study evaluates the effects of aging on the micromechanical and chemical properties of foamed warm-mix asphalt (WMA) and hot-mix asphalt (HMA) materials. Two asphalt binders were considered. Atomic force microscopy (AFM) was used to examine the micromechanical and adhesion properties of the asphalt binders considered at different aging conditions. In addition, Fourier-transform infrared spectroscopy (FTIR) and gel permeation chromatography...