1. Senior Lecturer, Dept. of Building and Construction Techniques Engineering, Madenat Alelem Univ. College, 10006 Baghdad, Iraq. ORCID: .
2. Professor, Faculty of Civil Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia.
3. Senior Lecturer, School of Civil Engineering, College of Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia; Institute for Infrastructure Engineering and Sustainable Management (IIESM), Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia (corresponding author) ORCID: .