1. Associate Member, ASCE
2. Members, ASCE
3. Res. Assoc., NSF Ctr. for Advanced Cement Based Mat., Civ. Engrg. Dept., Northwestern Univ., Evanston, IL 60208-4400.
4. Res. Civ. Engr., Concrete Mat. Div., U.S. Army Engr. Wtrwy. Experiment Station, Vicksburg, MS 39180-6199.
5. Asst. Prof., Dept. of Civ. and Arch. Engrg., Drexel Univ., Philadelphia, PA 19104.