Michelle Nokken, PhD
Professor, Building, Civil, and Environmental Engineering
Dr. Michelle Nokken is a Professor in the Department of Building, Civil & Environmental Engineering. She 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 as well as non-destructive testing for quality control. She joined the faculty of Concordia in September 2004.
Dr. Nokken is a Fellow of the American Concrete Institute. She is active in several committees at ACI, ASTM and CSA.
Prior to attending the University of Toronto for her BASc and PhD degrees, Dr. Nokken worked in industry for several years. She was involved in projects such as: research concerning sustainable development projects; energy analysis of single and multi-family residential housing; design of passive solar, straw bale and log homes.
Membership in external organizations
- American Concrete Institute - Faculty Network, Committees 201, 231, 236.
- American Society of Civil Engineers - Committees C1 and C9.
- CSA - A23.1 and A23.2.
- Professional Engineers of Ontario.
- Development of on-site techniques to assess adequate curing and durability of concrete
- Durability health monitoring
- Repair and rehabilitation of civil infrastructure
- Optimization of supplementary materials for sustainability and durability
- Permeability and Pore Structure Development
- Cemented mine backfill
Interested graduate students should have some knowledge of concrete properties and material behaviour, as well as a basic understanding of cement hydration and chemical deterioration processes in concrete. As a large part of the research for these projects is experimental, a willingness to get dirty and occasionally lift heavy objects is a plus.
- BLDG 462/BLDG 6621 Modern Building Materials
- BLDG 6931 Infrastructure Rehabilitation
- CIVI 321 Engineering Materials
- CIVI 6021 Durability of Concrete Materials
- ENGR 242 Statics (Fall 2005 and Fall 2006)
- ENGR 244 Mechanics of Materials
Research Area, Current and Past Graduate Students
Current Graduate Students
Mr. Seyed Javad Mirvalad, PhD
Mr. Sameh Hassan, PhD (with Dr. A. Soliman)
Mr. Mohammed Aldabibi (with Dr. H. Ge)
Ms. Dulani Kodippili, PhD (with Dr. R. A. L. Drew)
Past Graduate Students
- Mr. Adeyemi Adesina, MASc 2017, Influence of Moisture on Alkali Silica Reaction
- Mr. Pengfei Zhao, MASc 2016, Digital Image Correlation to Evaluate Plastic Shrinkage Cracking in Cement-Based Materials (with Dr. A. M. Zsaki),
- Mr. Sabbir Hassan, MASc 2015, Abrasion on Concrete Surfaces of Hydraulic Structures by Water-borne Sands
- Mr. Jose Sanchez Marquez, MASc 2015, Influence of Saturation and Geometry on Surface Electrical Resistivity Measurements
- Ms. Shahrzad Eghtesadi, MASc 2014, The influence of defects in concrete (cracking and segregation) on water absorption and electrical conductivity
- Dr. Sajjad Mirvalad, PhD 2014, Improving Performance of Portland-limestone Cements in Sulphate Exposures using Supplementary Materials
- Mr. Babak Mohammadi, MASc 2013, Development of Concrete Water Absorption Testing for Quality Control
- Dr. Arash Rahmatian, PhD 2013, Performance of an Innovative Sensing System for Structural Health Monitoring of FRP-Reinforced Concrete Structures (with Dr. A. Bagchi)
- Mr. Sohrab Zamani, MASc 2010, Effect of Curing Temperature on Hydraulic Backfill Performance with Consideration of a New Type of Binder (with Dr. Hassani at McGill)
- Mr. Pejman Neloovaght Motlagh, MASc 2009, An Investigation on the Influence of Microwave Energy on Basic Mechanical Properties of Hard Rocks (co-supervised with Dr. F. Hassani, McGill)
- Mr. Farzaan Abbasy, MASc 2009, Thermal Conductivity of Backfill (with Dr. F. Hassani, McGill)
- Mr. Reza Mohammadi Ahani, MASc 2009, Salt scaling resistance – the effect of curing and presaturation
- Mr. Allen Idle, MASc 2009, Chloride Resistance of High Volume Fly Ash Concretes
- Mr. Pouria Payrow, MASc 2008, Effect of Fiber Surface Treatment on the Post-Crack Strength and Toughness of Synthetic Fiber Reinforced Concrete(co-supervisor Dr. Feldman)
- Mr. Tarek Salloum, MASc 2007, Effect of Fly Ash Replacement on Alkali and Sulphate Resistance of Mortars
- Ms. Xiaorong Wu, MASc 2006, Effects of Chemical Admixtures on Concrete Conductivity
S.Eghtesadi and M. Nokken, 2017, “The Effect of Concrete Defects Such as Cracking and Consolidation on Water Absorption and Electrical Conductivity”, Journal of Materials in Civil Engineering, Vol. 29, Issue 11.
B. Mohammadi, M. Nokken and S. Mivalad, 2017, “Development of in-situ water absorption method - laboratory study and field validation”, Vol. 29, Issue 10.
D. Gao, L. Zhang, M. Nokken, 2017, “Mechanical behavior of recycled coarse aggregate concrete reinforced with steel fibers under direct shear”, Cement and Concrete Composites, Volume 79, Pages 1-8.
D. Gao, L. Zhang, M. Nokken, 2017 “Compressive behavior of steel fiber reinforced recycled coarse aggregate concrete designed with equivalent cubic compressive strength”, Construction and Building Materials, Volume 141, Pages 235-244
S. Mirvalad, M. Nokken, 2016, “Studying thaumasite sulfate attack using compressive strength and ultrasonic pulse velocity”, Materials and Structures. Volume 49, Issue 10, 4131-4146.
M. Kermani, F. P. Hassani, E. Aflaki, M. Benzaazoua, and M. Nokken, 2015. “Evaluation of the effect of sodium silicate addition to mine backfill, Gelfill− Part 2”. Journal of Rock Mechanics and Geotechnical Engineering. Volume 7, Issue 6, 668–673 (doi:10.1016/j.jrmge.2015.09.004)
M. Kermani, F. P. Hassani, E. Aflaki, M. Benzaazoua, and M. Nokken, 2015. “Evaluation of the effect of sodium silicate addition to mine backfill, Gelfill− Part 1”. Journal of Rock Mechanics and Geotechnical Engineering. Volume 7, Issue 3, 266–272 (doi:10.1016/j.jrmge.2015.03.006)
A. Rahmatian, A. Bagchi, M. Nokken, 2015, “Serviceability and Structural Behavior of FRP-RC Beams under Different Weathering Conditions and Fatigue” Applied Mechanics and Materials Vol. 704, 447-450
S.Mirvalad, M. Nokken, 2015, “Minimum SCM requirements in mixtures containing limestone cement to control thaumasite sulfate attack”, Construction and Building Materials, Vol. 84, 19–29
F. Abbasy, F. P. Hassani, S. A. Ghoreishi Madiseh, M. Nokken, 2014, “An experimental study on the effective parameters of thermal conductivity of mine backfill”, Heat Transfer Engineering, Vol. 35, No. 13, 1209-1224.
M. R. Nokken, T. Salloum, A. Idleand L. MartinezRamos, 2014, “Standardized Testing for Determining the Durability of High Volume Fly Ash Mixtures”, Journal of Materials in Civil Engineering (ASCE) Vol. 26, No. 1, 206-210.
P. Payrow, M. R. Nokken, D. Banu, R. Schmidt, C. E. DeWolf and D. Feldman, 2013, “Investigation of the Effect of UV and UV-Ozone Treatment of Polyolefin Fiber for Improving Concrete Composite Toughness”, Advances in Civil Engineering Materials, Vol. 2, No.1
R. Mohammadi Ahani, M. R. Nokken, 2012, “Salt scaling resistance – the effect of curing and pre-saturation”, Construction and Building Materials, Vol. 26, No. 1, 558-564.
P. Payrow, M. R. Nokken, D. Banu and D. Feldman, 2011, “Effect of Chemical Surface Treatment on the Post-Crack Residual Strength and Toughness of Fiber Reinforced Concrete”, Journal of Composite Materials, Vol. 45, No. 20, 2047-2054.
M. R. Nokken, 2010, “Expansion of MgO in Cement Pastes Measured by Different Methods”, to ACI Materials Journal, ACI Materials Journal, Vol. 107, No. 1, 80-84.
M. R. Nokken, A. E. Boddy, X. Wuand R. D. Hooton, 2008, "Effects of temperature, chemical and mineral admixtures on the electrical conductivity of concrete", Journal of ASTM International, Vol. 5, No. 5.
M. R. Nokken, and R. D. Hooton, 2008, “Using Pore Parameters to Estimate Permeability or Conductivity of Concrete”, Materials and Structures, Vol. 41, No. 1, 1-16.
F. P. Hassani, M. R. Nokken, and A. B. Annor, 2007, “Physical and mechanical behaviour of various combinations of minefill materials”, Canadian Institute of Mining and Metallurgy (CIM) Magazine, Volume 2, No. 3, 72.
M. R. Nokken, and R. D. Hooton, 2006, “Electrical Conductivity Testing: A Prequalification and Quality Assurance Tool”, Concrete International, Vol. 28, No. 11, 61-66.
M. R. Nokken, A. Boddy, R. D. Hooton and M. D. A. Thomas, 2006, “Time Dependant Diffusion in Concrete”, Cement and Concrete Research, Vol. 36, No. 1, 200-207.
M. R. Nokken, R. D. Hooton and C. A. Rogers, 2004, “Measured Internal Temperatures in Concrete Exposed to Outdoor Cyclic Freezing”, Cement, Concrete and Aggregates (ASTM), Vol. 26, No. 1, 26-32.
M. R. Nokken and R. D. Hooton, 2002, “Dependence of Rate of Absorption on Degree of Saturation of Concrete”, Cement Concrete and Aggregates (ASTM), Vol. 24, No. 1, 20-24.
M. S. Hassan, S. S. Li, M.Nokken and A. M. Zsaki, 2015, “Abrasion of Concrete Hydraulic StructuresSurfaces by Water-borne Sand”, CSCE 22nd Canadian Hydrotechnical Conference,Montreal, QC, April 29- May 2, 2015
S. Eghtesadi and M. R. Nokken, 2014, “Influence of Tensile Induced Microcracking on Standardized Performance Tests”. CSCE Annual Conference, Halifax, NS, May 28 -31, 2014
N. Hearn, R. D. Hooton and M. R. Nokken, Pore Structure and Permeability, Chapter 23 in Significance of Tests and Properties of Concrete and Concrete-Making Materials, ASTM STP 169D, American Society for Testing and Materials, May 2006, pp. 238-252
M. R. Nokken, “Concrete Permeability – Revisiting T. C. Powers, Concrete Technology Today. Vol. 26, No. 2, August 2005, pp. 6-7.
Nokken, M. R., Development of Discontinuous Capillary Porosity in Concrete and its Influence on Durability, PhD thesis, 2004, University of Toronto. Available as a PDF from the Portland Cement Association (SN2861).
Nokken, M. R., Book Review of “Water Transport in Brick, Stone and Concrete”, Cement, Concrete and Aggregates. Vol. 25, No. 1, June 2003, pg 28.