Evaluation method for aging of asphalt after thin film oven test

摘要

Varisous asphalts were subjected to aging tests to simulate serveice in asphalt pavements using the Pressure Aging Vessel (PAV) test,Thin Film Oven test,Outdoor Exposure test,and the newly developed using the MBP test and Dynamci Shear Rheometer test. The HTLTD test method can be more easily performed and the specimen best reflects the asphalt surface properties afte raging.The aging is greater compared with the PAV test,and similar to the Outdoor Exposure test. The new HTLTD methd is effective for evaluating aging of straight asphalts and porous asphalts at high temperature and over long periods.