1. Research Assistant Professor, Dept. of Civil Engineering, Pavements/Materials Program, Univ. of Nevada, Reno, NV 89557 (corresponding author).
2. Professor and Director, Dept. of Civil Engineering, Pavements/Materials Program, Univ. of Nevada, Reno, NV 89557.
3. Graduate Research Assistant, Dept. of Civil Engineering, Pavements/Materials Program, Univ. of Nevada, Reno, NV 89557.