Effects of Alkali-Aggregate Reaction (AAR) – A Technical Review and Portrait

June 27, 2024

2024-06-27 12:00 PM 2024-06-27 01:30 PM Effects of Alkali-Aggregate Reaction (AAR) – A Technical Review and Portrait N.A. America/New_York

12h00-13h30 (Eastern time) 

CDA (Canadian Dam Association) and UCOLD (Uganda Committee on Large Dams) are pleased to collaborate in presenting this free webinar targeted at Professionals and Young Professionals in the ICOLD community and others interested in the topic of AAR. The webinar moderator will be CDA’s Mayari Bernard-Garcia, ing., M.A.Sc., PhD, Hydrological, hydraulic and dam safety engineer at AtkinsRéalis. 

Opening remarks on the Memorandum of Understanding (MOU) between CDA and UCOLD will be given by Jean-Pierre Tournier, ing., PhD, Expert Advisor of Hydroelectric Developments at Hydro-Québec.  Highlights on the significance of the MOU will be given by Fredrick Wasike, P.Eng, Manager, Dam Safety and Water Resources at Uganda Electricity Generation Company Limited (UEGCL). Klun Mateja, ICOLD YP Board Chair, will provide information about the ICOLD Young Professionals Network. 

A presentation of how AAR affects some dams in Uganda will be provided by Patsheba Ayebare, Dam Safety Engineer, from UEGCL. A technical introduction to alkali-aggregate reaction (AAR) will be presented by Gurinderbir Sooch, M.A.Sc, P.Eng, Director, Hydropower and Dams with Hatch. Example projects will be discussed to illustrate issues and problems with dams in Canada and USA. 

The webinar will conclude with a short Q&A / Discussion session.

National Committee Speakers

Jean-Pierre Tournier


Jean-Pierre has over forty years of experience in all stages of infrastructure projects, and in particular, hydroelectric projects, in both the public and private sectors in Canada and internationally. He is the author and co-author of more than fifty technical publications and his expertise is recognized by the dam community around the world. He has served as Vice president of the ICOLD and as President of the CDA and remains very active in both organizations.


Klun Mateja, PhD

University of Ljubljana

Mateja is a research and teaching assistant at the University of Ljubljana, Faculty of Civil and Geodetic Engineering. She is also the current Chair of the ICOLD YPF.


Fredrick Wasike, P.Eng

Uganda Electricty Generation Company Limited (UEGCL)

Fredrick is a founder member and the Secretary General of Uganda Committee on Large Dams (UCOLD). He is also works with Uganda Electricty Generation Company Limited (UEGCL) as the Manager, Dam Safety and Water Resources.



Panel of Experts

Patsheba Ayebare, M.Sc

Uganda Electricty Generation Company Limited (UEGCL)

Patsheba is a passionate Civil Engineer with over 5 years of experience in the Dam Safety and Water Resources sectors. Currently, she works at Uganda Electricity Generation Company Limited, applying her expertise to ensure the safe and sustainable operation of dams. 


Gurinderbir Sooch, M.A.Sc, P.Eng

Hatch Canada

Gurinderbir is the Director, Hydropower and Dams Engineering at Hatch. He has published technical papers in USSD, ICOLD and CDA and voluntarily contributes to various dam engineering-related committees. He is also member in the ICOLD Technical Committee A COMPUTATIONAL ASPECTS OF ANALYSIS AND DESIGN OF DAMS.



Mayari Bernard-Garcia, Eng. M.A.Sc. PhD


Mayari is a hydrological, hydraulic and dam safety engineer at AtkinsRéalis. She is a member of the International, Francophone and Young Professional Committees of CDA and a member of the ICOLD-YPF. She is also currently on two ICOLD working group of the Dam Safety Committee.




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