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Lightweight Vapor-Permeable Plasters for Building Repair Detailed Experimental Analysis of the Functional Properties

Three types of lightweight plasters for building repair were prepared and tested. The composition of plasters was designed in respect to their compatibility with materials used in the past in historical masonry. For the hardened plasters, detailed testing of microstructural and macrostructural param...

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Autores principales: Záleská, Martina, Pavlíková, Milena, Pivák, Adam, Lauermannová, Anna-Marie, Jankovský, Ondřej, Pavlík, Zbyšek
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8156439/
https://www.ncbi.nlm.nih.gov/pubmed/34067857
http://dx.doi.org/10.3390/ma14102613
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author Záleská, Martina
Pavlíková, Milena
Pivák, Adam
Lauermannová, Anna-Marie
Jankovský, Ondřej
Pavlík, Zbyšek
author_facet Záleská, Martina
Pavlíková, Milena
Pivák, Adam
Lauermannová, Anna-Marie
Jankovský, Ondřej
Pavlík, Zbyšek
author_sort Záleská, Martina
collection PubMed
description Three types of lightweight plasters for building repair were prepared and tested. The composition of plasters was designed in respect to their compatibility with materials used in the past in historical masonry. For the hardened plasters, detailed testing of microstructural and macrostructural parameters was realized together with the broad experimental campaign focused on the assessment of mechanical, hygric, and thermal properties. As the researched plasters should find use in salt-laden masonry, specific attention was paid to the testing of their durability against salt crystallization. The mechanical resistance, porosity, water vapor transmission properties, and water transport parameters of all the researched plasters safely met criteria of WTA directive 2-9-04/D and standard EN 998-1 imposed on repair mortars. Moreover, the tested materials were ranked as lightweight plasters and due to their low thermal conductivity they can be used for the improvement of thermal performance of repaired masonry. The salt crystallization test caused little or no damage of the plasters, which was due to their high porosity that provided free space for salt crystallization. The developed plasters can be recommended for application in repair of damp and salt masonry and due to their compatible composition also in historical, culture heritage buildings. The added value of plasters is also their good thermal insulation performance.
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spelling pubmed-81564392021-05-28 Lightweight Vapor-Permeable Plasters for Building Repair Detailed Experimental Analysis of the Functional Properties Záleská, Martina Pavlíková, Milena Pivák, Adam Lauermannová, Anna-Marie Jankovský, Ondřej Pavlík, Zbyšek Materials (Basel) Article Three types of lightweight plasters for building repair were prepared and tested. The composition of plasters was designed in respect to their compatibility with materials used in the past in historical masonry. For the hardened plasters, detailed testing of microstructural and macrostructural parameters was realized together with the broad experimental campaign focused on the assessment of mechanical, hygric, and thermal properties. As the researched plasters should find use in salt-laden masonry, specific attention was paid to the testing of their durability against salt crystallization. The mechanical resistance, porosity, water vapor transmission properties, and water transport parameters of all the researched plasters safely met criteria of WTA directive 2-9-04/D and standard EN 998-1 imposed on repair mortars. Moreover, the tested materials were ranked as lightweight plasters and due to their low thermal conductivity they can be used for the improvement of thermal performance of repaired masonry. The salt crystallization test caused little or no damage of the plasters, which was due to their high porosity that provided free space for salt crystallization. The developed plasters can be recommended for application in repair of damp and salt masonry and due to their compatible composition also in historical, culture heritage buildings. The added value of plasters is also their good thermal insulation performance. MDPI 2021-05-17 /pmc/articles/PMC8156439/ /pubmed/34067857 http://dx.doi.org/10.3390/ma14102613 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Záleská, Martina
Pavlíková, Milena
Pivák, Adam
Lauermannová, Anna-Marie
Jankovský, Ondřej
Pavlík, Zbyšek
Lightweight Vapor-Permeable Plasters for Building Repair Detailed Experimental Analysis of the Functional Properties
title Lightweight Vapor-Permeable Plasters for Building Repair Detailed Experimental Analysis of the Functional Properties
title_full Lightweight Vapor-Permeable Plasters for Building Repair Detailed Experimental Analysis of the Functional Properties
title_fullStr Lightweight Vapor-Permeable Plasters for Building Repair Detailed Experimental Analysis of the Functional Properties
title_full_unstemmed Lightweight Vapor-Permeable Plasters for Building Repair Detailed Experimental Analysis of the Functional Properties
title_short Lightweight Vapor-Permeable Plasters for Building Repair Detailed Experimental Analysis of the Functional Properties
title_sort lightweight vapor-permeable plasters for building repair detailed experimental analysis of the functional properties
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8156439/
https://www.ncbi.nlm.nih.gov/pubmed/34067857
http://dx.doi.org/10.3390/ma14102613
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