1. Department of Civil Engineering, School of Engineering, Abdu Gusau Polytechnic, Talata Mafara, Nigeria
2. Centre for Research and Innovation, International College of Auckland, Auckland, New Zealand
3. School of Engineering, London South Bank University, London, UK
4. Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, Dublin, Ireland
5. Department of Civil Engineering, Faculty of Engineering, University Putra Malaysia, Seri Kembangan, Malaysia
6. Department of Geotechnical Engineering, University of Kassel, Kassel, Germany