A collaborative effort is being launched with the National Research Council of Canada (NRC), the province of Quebec and Université Laval looking to find a solution to the problems stemming from the presence of pyrrhotite in concrete.
“This collaboration between the National Research Council of Canada and Université Laval will ensure the safety of Canadians and minimize the future economic impact of pyrrhotite in concrete in Trois-Rivières, in Quebec and across the country,” says François-Philippe Champagne, Minister of Infrastructure and Communities.
Today’s announced will create a research chair between the NRC and Université Laval with the purpose to eliminate the problems caused by pyrrhotite damage to concrete.
This project, pegged at $4.9 million, will run for four years. Funding will be provided by the NRC and the Régie du bâtiment du Québec (RBQ) and its partners, including the Société d’habitation du Québec (SHQ) and Garantie de construction résidentielle.
This project will help professors at the Department of Geology and Geological Engineering at the Faculty of Science and Engineering of the Université Laval and co-holders of the research chair, Josée Duchesne and Benoît Fournier, as well as NRC scientists, to establish acceptable limits for the content of various sulphurs, including pyrrhotite, in Canadian concrete aggregates.
It will also enable the development of fast, inexpensive and reliable test methods for detecting potentially hazardous sulphide levels in concrete aggregates; and identify preventative measures for the safe use of sulphur concrete aggregates.
The ultimate goal of this research chair will be to provide technical solutions to the Canadian Standards Association so that it can update the standards on concrete aggregates. The results of this collaboration will be realized once the standards have been updated and incorporated into national codes.
Today’s announced will create a research chair between the NRC and Université Laval with the purpose to eliminate the problems caused by pyrrhotite damage to concrete.
This project, pegged at $4.9 million, will run for four years. Funding will be provided by the NRC and the Régie du bâtiment du Québec (RBQ) and its partners, including the Société d’habitation du Québec (SHQ) and Garantie de construction résidentielle.
This project will help professors at the Department of Geology and Geological Engineering at the Faculty of Science and Engineering of the Université Laval and co-holders of the research chair, Josée Duchesne and Benoît Fournier, as well as NRC scientists, to establish acceptable limits for the content of various sulphurs, including pyrrhotite, in Canadian concrete aggregates.
It will also enable the development of fast, inexpensive and reliable test methods for detecting potentially hazardous sulphide levels in concrete aggregates; and identify preventative measures for the safe use of sulphur concrete aggregates.
The ultimate goal of this research chair will be to provide technical solutions to the Canadian Standards Association so that it can update the standards on concrete aggregates. The results of this collaboration will be realized once the standards have been updated and incorporated into national codes.
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