1. M.Sc. Student, Dept. of Civil Engineering, College of Engineering, King Saud Univ., Riyadh, Saudi Arabia.
2. Professor and Bugshan Research Chair in Expansive Soils, Dept. of Civil Engineering, College of Engineering, King Saud Univ., Riyadh, Saudi Arabia.
3. M.Sc. Research Fellow and Bugshan Research Chair in Expansive Soils, Dept. of Civil Engineering, College of Engineering, King Saud Univ., Riyadh, Saudi Arabia.
4. Associate Professor, Dept. of Civil Engineering, College of Engineering, King Saud Univ., Riyadh, Saudi Arabia.
5. Ph.D. Student, School of Civil Engineering, Univ. of Queensland, St. Lucia, Brisbane, Australia.