The deterioration of concrete in houses and other buildings in Québec due to reaction of iron sulphides (the mineral pyrrhotite) in the concrete aggregate is a significant and well-documented issue. The CSA Technical Committee on Concrete Materials and Construction (CSA A23.1/A23.2) is developing new provisions and information on this issue to be included in the next edition of CSA A23.1/A23.2 in 2019, including a test method intended to measure the sulphide sulphur content of aggregates.

The objective of the research project was to conduct a multi-laboratory study of the proposed test method in order to develop a precision statement and to determine if the test is sufficiently precise to be implemented in the next edition of CSA A23.1/A23.2.

Contact Standards Research

Orange line image

Are you interested in learning more about our research? Email us at [email protected].

Join the Research Community

Orange line image

Join the CSA Community today so you can keep informed about research that is critical to standards development

When you join the CSA Community, you’ll gain access to the CSA Group Research Space. You can learn about current studies, get the latest information on upcoming programs, ask questions, andget involved in future research.

Join The Community