1. Faculty of Engineering, Department of Civil and Environmental Engineering, Beirut Arab University, Beirut, Lebanon
2. Faculty of Engineering, Department of Civil Engineering, Alexandria University, Alexandria, Egypt
3. Pavements & Materials Specialist, SETS international, Beirut, Lebanon
4. Unité Mixte de Recherche, Centre National de la Recherche Scientifique, Institut de Recherche sur les Céramiques, Université de Limoges, Cedex, France