1. Asst. Prof., Arch. Engrg. Dept., North Carolina A&T State Univ., Greensboro, NC 27411.
2. Prof., Arch. Engrg. Dept., North Carolina A&T State Univ., Greensboro, NC.
3. Chief, Constr. and Mat. Div., Wtrwy. Experiment Station, Vicksburg, MS, 39180.
4. Res. Engr., Constr. and Mat. Div., Wtrwy. Experiment Station, Vicksburg, MS.
5. Prof., Civ. Engrg. Dept., North Carolina A&T State Univ., Greensboro, NC.