1. Research Associate, Dept. of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO 80401 (corresponding author).
2. Professor, Dept. of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO 80401.
3. Technology Development Coordinator, Federal Highway Administration, Central Federal Lands Highway Division, 12300 West Dakota Ave., Lakewood, CO 80228.
4. Pavement and Materials Technical Leader, Federal Highway Administration, Central Federal Lands Highway Division, 12300 West Dakota Ave., Lakewood, CO 80228.
5. Professor, Dept. of Civil and Environmental Engineering, U.S. Air Force Academy, Colorado Springs, CO 80840.