The Asphalt Binder Oxidative Aging Chemo-Mechanical Model: [techbrief]

2018PDFTech ReportFHWA-HRT-15-052HRDI-10/05-18(WEB)EBinder courseOxidationPavement performanceUnited StatesUnited States. Federal Highway Administration. Office of Research, Development, and TechnologyUnited States. Federal Highway Administration. Office of Research, Development, and TechnologyTurner-Fairbank Highway Research CenterYoutcheff, JackFederal Highway AdministrationThe asphalt binder oxidative aging chemomechanical model provides a significant improvement in the understanding of asphalt binder oxidation chemistry. It offers a more consistent mathematical description of the oxidation process and provides evidence that greatly simplified testing methods can be developed to describe the oxidation behavior of asphalt binders for the interpretation of pavement monitoring and for use in pavement performance prediction models. This model is also compatible with diffusion studies because the role of oxygen concentration in determining the oxidation rate is explicitly described