1. Chief Executive Officer and Director, Dura Technology, Lot 304993, Jalan Chepor 11/8, Pusat Seramik Fasa 2, Ulu Chepor, 31200, Chemor, Perak, Malaysia; Adjunct Professor, Civil Engineering Dept., Univ. Putra Malaysia (UPM), Serdang, 43400, Malaysia (corresponding author).
2. Professor, Head of School, Civil and Environmental Engineering, Univ. of New South Wales Australia, Sydney NSW 2052, Australia.
3. Project Manager, Dura Technology, Lot 304993, Jalan Chepor 11/8, Pusat Seramik Fasa 2, Ulu Chepor, 31200, Chemor, Perak, Malaysia.