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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

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • 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

  • 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