1 Simulating the Behaviour of Reactive Soils and Slab 1 Foundations using Hydro-Mechanical Finite Element 2 Modelling Incorporating Soil Suction and Moisture 3 Changes 4 5 6 Mohamed A. Shams 7 PhD Candidate, Department of Civil Engineering, Curtin University, WA 6845, Australia 8 E-mail: mohamed.shams@postgrad.curtin.edu.au 9 10 11 Mohamed A. Shahin† 12 Associate Professor, Department of Civil Engineering, Curtin University, WA 6845, Australia 13 E-mail: M.Shahin@curtin.edu.au 14 15 16 Mostafa A. Ismail 17 Geotechnical Engineering Consultant, Perth WA, Australia 18 E-mail: mostafaperth@gmail.com 19 20 21 22 †Corresponding author 23 Submitted to: Computers and Geotechnics 24