[1] Covenant Univ, Bldg Technol Dept, PMB1023, Ota, Ogun State, Nigeria
[2] Univ Johannesburg, Fac Engn & Built Environm, Cidb Ctr Excellence & Sustainable Human Settlemen, Doorfoiten Campus, ZA-198 Maropeng, South Africa
[3] Univ Johannesburg, Fac Engn & Built Environm, Construct Res Ctr, Dept Construct Management & Quant Surveying, Doorfoiten Campus, ZA-198 Maropeng, South Africa