IDENTIFICATION OF CHEMICAL TYPES IN ASPHALTS STRONGLY ADSORBED AT THE ASPHALT-AGGREGATE INTERFACE AND THEIR RELATIVE DISPLACEMENT BY WATER

The purpose of the investigation described was to isolate the components strongly adsorbed at the asphalt-aggregate interface, characterize both quantitatively and qualitatively the chemical functional types strongly adsorbed by aggregates, support this study by determining the relative affinity of model compounds for aggregate surfaces, and determine those strongly adsorbed components easily displaced from aggregate surfaces by water during a moisture-damage test.