1. Professor, Dept. of Civil and Environmental Engineering, American Univ. of Beirut, Lebanon (corresponding author).
2. Instructor, Dept. of Civil and Environmental Engineering, American Univ. of Beirut, Lebanon.
3. Associate Professor, Dept. of Science of Materials, ESTSI Bilbao (UPV/EHV), Bilbao; and Main Researcher, Labein Foundation, Spain.