Laboratory Evaluation of Thin and Modified Asphalt Overlay Mix Design Procedures

This project will provide the Department with a comparison of performance-related mechanistic laboratory tests and the currently used stabilometer test methods for polymer-modified and rubber-asphalt mixes. The expected outcome is a set of recommendations for improving the Department's laboratory asphalt mix design procedures based on mix type, climate, and economic risk. The project will also include some comparisons of test results with those from the SHRP gyratory-compacted specimens.