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Project Leader
Kenneth Trischuk
Phone: 613-990-6438
Fax: 613-954-5984
Email: Kenneth.Trischuk@nrc-cnrc.gc.ca
Durability of Repointing Mortar
Research is ongoing to develop and evaluate test methods for assessing the durability of masonry, in particular repointing mortars, with a high lime content, for older masonry. The emphasis is on accelerated uni-directional freeze-thaw resistance tests (uni-directional freezing more closely simulates freezing that occurs in exterior walls). Other aspects under consideration for repointing mortars are the resistance to salts, leaching of lime, deformability, shrinkage, and the bond between mortar and masonry units.
Working Group on Repointing Mortars for Masonry Buildings
Courtesy of Werleman Guy McMahon, architectes (Montreal)
In 1997, NRC-IRC spearheaded the formation of a Canadian working group interested in sharing knowledge and experience related to repointing mortars used in the rehabilitation of older masonry buildings. Twice a year, the group meets to review advances, discuss current concerns, develop research priorities and have site visits opportunities. Current membership includes designers, restoration specialists, manufacturers and researchers. Membership is open to all involved in the use of repointing mortar for masonry, who wish to contribute to the advancement of knowledge and practices in this relatively new field of architecture, engineering and trades expertise in Canada. To become a member, contact Ken Trischuk.
Related Projects
- Rehabilitation of Older Masonry Wall Assemblies
- Monitoring the Long-Term Performance of the Peace Tower
- Freeze-thaw Durability of Masonry Units
