1. Materials and Construction Industries Chair, Dept. of Civil and Environmental Engineering, Mississippi State Univ., Mississippi State, MS.
2. Ph.D. Student, Dept. of Civil and Environmental Engineering, Univ. of Vermont, Burlington, VT.
3. Graduate Teaching and Research Assistant, Dept. of Civil and Environmental Engineering, Mississippi State Univ., Mississippi State, MS.
4. Construction Materials Department Manager, ECS Southwest, LLP, Carrollton, TX.