1. Associate Professor, Bugshan Research Chair in Expansive Soils, Dept. of Civil Engineering, College of Engineering, King Saud Univ., P.O. Box 800, Riyadh 11421, Saudi Arabia (corresponding author).
2. Researcher, Bugshan Research Chair in Expansive Soils, Dept. of Civil Engineering, College of Engineering, King Saud Univ., P.O. Box 800, Riyadh 11421, Saudi Arabia.
3. Professor and Director, Bugshan Research Chair in Expansive Soils, Dept. of Civil Engineering, College of Engineering, King Saud Univ., P.O. Box 800, Riyadh 11421, Saudi Arabia.