Dr. Michelle Nokken obtained BASc and PhD degrees from the University of Toronto in 1999 and 2004, respectively. Her research is focused on the concrete performance and durability of concrete materials subjected to a number of deterioration mechanisms. She joined the faculty of Concordia in September 2004. She is a member of ACI 201, 231 and 236; a member of ASTM Committees C1 and C9; and Associate Editor of Journal of Materials in Civil Engineering.