1. Founding Professor of Engineering, Dept. of Civil and Environmental Engineering, Univ. of Illinois, Urbana-Champaign, IL.
2. Assistant Professor, Dept. of Civil and Environmental Engineering, Rutgers, The State Univ. of New Jersey, New Brunswick, NJ (corresponding author).
3. Research Professor, Sejong Univ., Seoul, Korea.
4. Postdoctoral Research Associate, Dept. of Civil and Environmental Engineering, Univ. of Illinois, Urbana-Champaign, IL.
5. Graduate Research Assistant, Dept. of Civil and Environmental Engineering, Univ. of Illinois, Urbana-Champaign, IL.
6. Materials Manager, Illinois State Toll Highway Authority, Downers Grove, IL.