Investigation of Short-Term Laboratory Aging of Neat and Modified Asphalt Binders

This report provides a proposed method of test for short-term laboratory aging of neat and modifiedasphaltbinders using the Modified German Rotating Flask (MGRF) as an alternative to the Rolling Thin Film Oven Test (RTFOT, AASHTO T 240). Thus, the report will be of immediate interest to staff of state highway agencies, materials suppliers, and paving contractors with responsibility forspecificationand testing ofasphaltbinders.