| Title: | Effect of leaching on the composition of hydration phases during chloride exposure of mortar |
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| Authors: | ID Machner, Alisa (Author)
ID Bjørndal, Marie Helene (Author)
ID Justnes, Harald (Author)
ID Hanžič, Lucija (Author)
ID Šajna, Aljoša (Author)
ID Gu, Yushan (Author)
ID Bary, Benoit (Author)
ID Haha, Mohsen Ben (Author)
ID Geiker, Mette R. (Author)
ID De Weerdt, Klaartje (Author) |
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| Files: |  URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S0008884621003409?via%3Dihub
 PDF - Presentation file, download (7,13 MB)
MD5: 22DF9324CBD45CB19D46DB139C2932D3
PDF - Supplement, download (390,55 KB)
MD5: BC71AE2720DB97751742484C4E2C4130
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  ZAG - Slovenian National Building and Civil Engineering Institute
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| Abstract: | Mortar specimens were exposed to either a 3% NaCl solution or a 3% NaCl+KOH solution for up to 180 days. Exposure to the NaCl solution provoked much more leaching than the NaCl+KOH exposure. Leaching strongly impacted the chloride ingress profiles. The extended leaching led to a maximum total chloride content almost three times higher and a deeper chloride penetration than exposure with limited leaching after 180 days. The higher maximum chloride content seems to be linked to the enhanced binding capacity of the C-S-H and AFm phases upon moderate leaching as determined by SEM-EDS. The total chloride profile appears to be governed by multi-ion transport and the interaction of chloride with the hydration phases. Service life prediction and performance testing both rely on total chloride profiles and therefore ought to take these interactions into account. |
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| Keywords: | chloride binding, Friedel's salt, Kuzel's salt, ph, GEMS, thermodynamic modelling, open access |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 13.01.2022 |
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| Publisher: | Pergamon Press |
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| Year of publishing: | 2022 |
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| Number of pages: | str. 1-22 |
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| Numbering: | Vol. 153 |
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| PID: | 20.500.12556/DiRROS-15804  |
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| UDC: | 620.1/.2 |
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| ISSN on article: | 0008-8846 |
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| DOI: | 10.1016/j.cemconres.2021.106691 |
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| COBISS.SI-ID: | 94335747 |
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| Copyright: | © 2022 The Authors. Published by Elsevier Ltd |
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| Note: | Št. članka: 106691;
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| Publication date in DiRROS: | 26.04.2023 |
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| Views: | 330 |
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| Downloads: | 272 |
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