Magnetic resonance imaging of H, Na, and Cl penetration in Portland cement mortar |
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Authors: | Fde J Cano TW BremnerRP McGregor BJ Balcom |
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Affiliation: | a MRI Centre, Department of Physics, University of New Brunswick, PO Box 4400, Fredericton, New Brunswick, Canada E3B 5A3 b Department of Civil Engineering, University of New Brunswick, PO Box 4400, Fredericton, New Brunswick, Canada E3B 5A3 |
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Abstract: | The first magnetic resonance imaging profiles of chloride content in low- and high-permeability Portland cement mortar have been obtained using a novel material science imaging technique. The penetration of water as well as chloride and sodium ions, into mortar specimens was monitored for a period of 72 h. Marked differences in penetration depth were observed in low- and high-permeability mortar. These preliminary experiments show significant differences between the extent and nature in the penetration of chlorides compared to water and sodium. |
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Keywords: | Chloride penetration Durability Mortar SPRITE-MRI Transport properties |
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