Laboratory Pavement Polishing Device (Wear Machine) versus Field Friction Test Units and Accumulative Traffic (ADT). Phase II. Correlation Study

摘要

Phase I of this program involved predicting in-situ pavement friction values by testing pavement samples in a Laboratory Pavement Polishing Device, developed to determine aggregate wear. Results from this correlation were favorable, but additional testing was needed to verify these findings. Phase II of the program was to determine if degrees of pavement wear (vehicular traffic) could be predicted from testing samples of in-service pavements in the Laboratory Pavement Polishing Device and to verify the testing from Phase I. This investigation was made on asphaltic concrete pavements, primarily friction courses used in Florida. These pavements were tested at different levels of accumulative traffic (ADT) for approximately 2 years.