Salts accumulation effect on durability of non-hydrophobized renovation plasters

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00368960" target="_blank" >RIV/68407700:21110/23:00368960 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.5593/sgem2023/6.1/s26.40" target="_blank" >https://doi.org/10.5593/sgem2023/6.1/s26.40</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5593/sgem2023/6.1/s26.40" target="_blank" >10.5593/sgem2023/6.1/s26.40</a>

Result language
angličtina
Original language name
Salts accumulation effect on durability of non-hydrophobized renovation plasters
Original language description
This paper focuses on the experimental testing of hydrated lime-, natural hydraulic lime-, and lime-cement-based mortars with improved salt accumulation capacity. Moreover, the effect of varying content of non-hydrophobised expanded perlite (EP) in the mortars on their durability was investigated. The substation of silica sand by expanded perlite was 25%, 50%, 75% and 100% by volume. A modified method based on the adsorption of free salt ions from solution was used to measure the chloride binding isotherms. The salt concentration was analyzed using an apparatus working on liquid chromatography technique. The data acquired were compared with reference mortars with natural silica sand as an only aggregate. The use of expanded perlite significantly increased the chloride binding capacity of the tested mortars, while no deterioration was observed for samples contaminated with salts. The results obtained thus validated the applicability of most of the mortars tested for the repair of masonry structures including the restoration of renders and plasters. When repairing historic masonry, compatibility issues must be considered, in this case with respect to the type of binder used.
Czech name
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Czech description
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Project
<a href="/en/project/GA21-06582S" target="_blank" >GA21-06582S: Experimental and computational analysis of salt transport, accumulation, and crystallization in non-hydrophobized rendering mortars</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of 23rd International Multidisciplinary Scientific GeoConference SGEM 2023,volume 23, issue 6.1
ISBN
978-619-7603-61-3
ISSN
1314-2704
e-ISSN
1314-2704
Number of pages
7
Pages from-to
321-327
Publisher name
STEF92 Technology Ltd.
Place of publication
Sofia
Event location
Albena
Event date
Jul 4, 2023
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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