Rahil Khoshnazar

Assistant Professor

Department of Civil Engineering

Postdoctoral Fellowship

McGill University, 2017


University of Ottawa, 2015


University of Tehran, 2010


University of Tehran, 2008

Contact information


CNRL Engineering Complex : ENF 212


  • Introduction to Civil Engineering Materials (ENCI 413)

  • Sustainable Concrete (ENCI 595)

  • Advanced Concrete Technology (ENCI 619)

  • Theory and Applications of the Finite Element Method (ENCI 653)

Preferred method of communication

Please contact me by email

Research and teaching

Research areas

  • Engineering for the environment
  • Sustainable and resilient infrastructure
  • Construction materials
  • Nanomaterials and Technologies
  • Climate Change Adaptation


Research activities 

Dr. Khoshnazar’s research focuses on the development and characterization of advanced and sustainable cement-based materials for construction applications. She applies novel chemistry and nanotechnology approaches to develop long-lasting cement-based materials with low environmental impacts. As the leading expert on concrete materials at the University of Calgary, she works with a group of academic and industrial partners on projects such as development of low-energy cement-based materials using seeding technology, development of nanomodified and eco-friendly cements for concrete masonry block manufacturing, and design of multifunctional concrete for sustainable cities.



Dr. Khoshnazar is an Assistant Professor in the Department of Civil Engineering at the University of Calgary. Prior to joining the University of Calgary in November 2017, she worked as an NSERC postdoctoral fellow at McGill University. Her postdoctoral research focused on the characterization of the micro-/nano-structure of green concrete materials produced by the carbonation curing technique. She received her Ph.D. degree in Civil Engineering from the University of Ottawa in 2015. During her doctoral program, she worked on the nanostructural modification and performance assessment of hydrated cement-based materials at the National Research Council Canada in Ottawa. Dr. Khoshnazar also worked for four years at the Construction Materials Institute at the University of Tehran, where she completed her BSc (2008) and MSc (2010) studies.


Refereed Journal Papers

Zhao, D., Khoshnazar, R. (2020)  Hydration and microstructural development of calcined clay cement paste in the presence of calcium-silicate-hydrate (C-S-H) seed. Cement and Concrete Composites, under review.

Zhao, D., Khoshnazar, R. (2020) Microstructure of cement paste incorporating high volume of low-grade metakaolin. Cement and Concrete Composites, 106, 103453. https://doi.org/10.1016/j.cemconcomp.2019.103453.

Khoshnazar R., Shao Y., (2018) “Characterization of cement paste cured by the early-age carbonation using X-ray photoelectron spectroscopy”, Construction and Building Materials, 168, pp. 598-605. https://doi.org/10.1016/j.conbuildmat.2018.02.175.

Khoshnazar R., Beaudoin J.J., Raki L. and Alizadeh R. (2016) “Durability and mechanical properties of C-S-H/nitrobenzoic acid composite systems”, Materials and Structures, 49(12), pp. 5315-5325. https://doi.org/ 10.1617/s11527-016-0862-0.

Khoshnazar R., Beaudoin J.J., Raki L. and Alizadeh R. (2016) “Interaction of 2-, 3- and 4-nitrobenzoic acid with the structure of calcium-silicate-hydrates (C-S-H),” Materials and Structures, 49(1-2), pp.499-506. https://doi.org/ 10.1617/s11527-014-0513-2.

Khoshnazar R., Alizadeh R., Beaudoin J.J., and Raki L (2015) “The physico-mechanical stability of C-S-H/polyaniline nanocomposites,” Materials and Structures, 48(1-2), pp. 67-75. https://doi.org/10.1617/s11527-013-0168-4.

Khoshnazar R., Beaudoin J.J., Raki L. and Alizadeh R. (2015) “Characterization, durability and engineering performance of C-S-H/aminobenzoic acid composite systems”, Journal of Advanced Concrete Technology, 13, pp. 415-420. https://doi.org/10.3151/jact.13.415.

Khoshnazar R., Beaudoin J.J., Raki L., and Alizadeh R. (2014) “Volume stability of C-S-H/polyaniline nanocomposites in aqueous salt solutions,” ACI Materials Journal, 111(6), pp. 623-632. https://doi.org/10.14359/51687127.

Khoshnazar R., Beaudoin J.J., Raki L. and Alizadeh R. (2013) “Solvent-exchange in sulfoaluminate phases – Part I: ettringite,” Advances in Cement Research, 25(6), pp. 314-321. https://doi.org/10.1680/adcr.12.00042.

Khoshnazar R., Beaudoin J.J., Alizadeh R. and Raki L (2012) “Volume stability of calcium sulfoaluminate phases,” Journal of the American Ceramic Society, 95(12), pp. 3979-3984. https://doi.org/10.1111/jace.12040.

Libre N.A., Khoshnazar R., and Shekarchi M., (2012) “Repeatability, responsiveness and relative cost analysis of SCC workability test methods”, Materials and Structures, (45), pp. 1087-1100. https://doi.org/10.1617/s11527-011-9818-6.

Libre N.A., Khoshnazar R., and Shekarchi M. (2010) “Relationship between fluidity and stability of self-consolidating mortar incorporating chemical and mineral admixtures,” Construction and Building Materials (24), pp. 1262-1271. https://doi.org/10.1016/j.conbuildmat.2009.12.009.

Selected Conference Contributions

Zhao D., Khoshnazar R., Jasso M. (2020) “Mechanical properties and microstructure of cement-based materials incorporating calcined clay and C-S-H seed,” Canadian Society of Civil Engineering (CSCE) Conference, accepted, the conference was cancelled due to the COVID-19 pandemic. 

Zhao D. and Khoshnazar R. (2019) “Microstructure-strength relationships of cement paste incorporating calcined clay,” American Concrete Institute Spring Convention, Québec City, QC, Canada. 

Khoshnazar R., Beaudoin J.J., Raki L. and Alizadeh R. (2014), “Dynamic mechanical performance of organically modified C-S-H systems,” American Concrete Institute Fall Convention, Washington, DC, USA. 

Khoshnazar R., Beaudoin J.J., Raki L. and Alizadeh R. (2014) “Durability and engineering performance of calcium-silicate-hydrate systems modified with nitrobenzoic acid,” 5th Advances in Cement-based Materials Symposium, Tennessee Technological University, TN, USA. 

Khoshnazar R., Beaudoin J.J., Raki L. and Alizadeh R. (2014) “Thaumasite and ettringite sulfate attack: similarities and distinctions,” American Concrete Institute Spring Convention, Reno, NV, USA. 


Schulich School of Engineering Research Award, 2017

Postdoctoral Fellowship, Natural Sciences and Engineering Research Council of Canada (NSERC), 2016

Excellence Scholarship, University of Ottawa, 2012

Ontario Graduate Scholarship, Ontario Ministry of Training, Colleges and Universities, 2012