Abstract
Classic wide-line nuclear magnetic resonance techniques are used to measure the quantitative amounts of asphalt in asphalt-aggregate mixtures, including full 4-inch highway cores. It is shown how wide-line NMR can be used to measure and study the physical properties of both neat asphalts and asphalt in mixtures. A correlation relating known physical property measurements to NMR parameters is given for a wide range of neat asphalts. It is also shown how interactions between the asphalt and the aggregate in a mixture influence the physical properties of the ashpalt and detemine the physical properties of the mix.