Funding/Research Supports

City of St. John’s

Project Status


Project Overview

The goal of this research project is to enhance rutting and moisture induced damage resistance in asphalt mixture, while the project’s objectives are as follows: review the current asphalt binder and mixture specifications of the City of St. John’s; investigate the performance of asphalt binder additives and modifiers in binder and mastic levels for improving rut and moisture damage resistance for local application through standard and advanced testing; evaluate moisture damage and rut resistant asphalt mixture designs including stone matrix and high modulus mixtures, and mixture with steel slags and waste tire through laboratory and small-scale field testing.

Project Report

Link to Review Report: Review on Asphalt Binder Additives and Modifiers