Crystallization and dissolution of common salts - damage potential to porous media
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F18%3A00490642" target="_blank" >RIV/68378297:_____/18:00490642 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/978-3-319-91989-8_2" target="_blank" >https://doi.org/10.1007/978-3-319-91989-8_2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/978-3-319-91989-8_2" target="_blank" >10.1007/978-3-319-91989-8_2</a>
Alternative languages
Result language
angličtina
Original language name
Crystallization and dissolution of common salts - damage potential to porous media
Original language description
Growing crystals of soluble salts could cause degradation of porous building materials due to generation of crystallization pressure inducing tensile stress inside porous system. Considerable damage potential has been observed in case of sodium sulfate through phase change and rapid formation of hydrated phase mirabilite from highly supersaturated solution rising from dissolution of anhydrous phase thenardite after changing of surrounding conditions. Crystallization of sodium chloride can also lead to damage but the intensity is not as evident in comparison with sodium sulfate. The extent of salt attack strongly depends particularly on the environmental conditions and salt content in the material. The morphology of crystals (NaCl, Na2SO4 and mixture of both in ratio 1:1) and phenomena related to dissolution were studied with optical microscope. Conclusions from microscopic observation were applied to real porous system - sandstone subjected to salinization and wetting-drying cycles. The massive damage (>50%) showed the specimen containing single sodium sulfate crystals which are during wetting subjected to phase transition accompanied by volume change. The damage caused by sodium chloride and by mixture was much lower - 1% and 3% respectively. Such low mass change could be explained by greater amount of efflorescence and also by lower damage potential of NaCl and the mixture.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/GBP105%2F12%2FG059" target="_blank" >GBP105/12/G059: Cumulative time dependent processes in building materials and structures</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the first International conference on theoretical, applied and experimental mechanics
ISBN
978-3-319-91988-1
ISSN
2522-560X
e-ISSN
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Number of pages
6
Pages from-to
8-13
Publisher name
Springer
Place of publication
Cham
Event location
Paphos
Event date
Jun 17, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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