Odira Patts M. Akumu Professor of Civil Engineering Websites https://ke.linkedin.com/in/patts-odira-a6bbb424?challengeId=AQETKQpG9lmJxQAAAXT97i-dZvnFllEDQmkSJFfgIboNW3-meBnh7MzX-1b0NxRJg0Id5cOkND0NIhA0abMyg6H3b9hUI159tA&submissionId=44c027a1-ab67-3b16-cb07-4c89a4244726 Contact information College of Architecture and Engineering, University of Nairobi P.O Box 30197-00100 NAIROBI, KENYA Tel: (+254) (0) 20 318262 Ext 28396 or 254 20 245962 Email: pmodira@uonbi.ac.ke