Abstract
Repeated crystallisation of salts in the pores of building materials is a common cause of damage in buildings. Sodium chloride (NaCl) is one of the most common salts, responsible for weathering in the built environment. Mortars, especially when used as plasters and renders on the surface of walls, experience fast degradation as they are exposed to conditions perfectly conducive to salt weathering. As a consequence, their service life is often compromised, requiring frequent replacements. Costs associated with replacement interventions have a high economic and a social impact. Over the last two decades, the use of crystallisation inhibitors as an additive to prevent/mitigate salt crystallisation damage in building materials has shown promising results. Sodium ferrocyanide (NaFeCN), a crystallisation inhibitor of NaCl is particularly effective in preventing damage by inhibiting/delaying NaCl nucleation and altering NaCl’s crystal habit. When mixed-in air lime-based mortars, NaFeCN has been shown to considerably improve the salt weathering resistance....
Original language | English |
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Qualification | Doctor of Philosophy |
Awarding Institution |
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Supervisors/Advisors |
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Thesis sponsors | |
Award date | 25 Oct 2024 |
Print ISBNs | 978-94-6366-936-8 |
Electronic ISBNs | 978-94-6366-937-5 |
DOIs | |
Publication status | Published - 2024 |
Keywords
- Salt weathering
- Sodium chloride
- crystallisation inhibitor
- hydraulic mortars
- Chitosan-alginate
- Controlled release
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Dive into the research topics of 'Improving salt weathering resistance of hydraulic mortars with an encapsulated crystallisation inhibitor'. Together they form a unique fingerprint.Datasets
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PhD dissertation: Improving salt weathering resistance of hydraulic mortars with an encapsulated crystallisation inhibitor
Kamat, A. A. (Creator), TU Delft - 4TU.ResearchData, 17 Sept 2024
DOI: 10.4121/91B24D14-0E99-4F7E-9BF1-44EDF253180E
Dataset/Software: Dataset