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Effect of Portland Cement on the Selected Properties of Flue Gas Desulfurization Gypsum-Based Plasters

The introduction of the European Union’s climate change legislation and the intended use of renewable energy sources instead of fossil fuels will significantly reduce the production of flue gas desulfurization (FGD) gypsum used as the raw material for gypsum mortar plasters’ production. This has for...

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Autores principales: Baran, Edyta, Hynowski, Mariusz, Kotwica, Łukasz, Rogowski, Jacek
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10383552/
https://www.ncbi.nlm.nih.gov/pubmed/37512332
http://dx.doi.org/10.3390/ma16145058
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author Baran, Edyta
Hynowski, Mariusz
Kotwica, Łukasz
Rogowski, Jacek
author_facet Baran, Edyta
Hynowski, Mariusz
Kotwica, Łukasz
Rogowski, Jacek
author_sort Baran, Edyta
collection PubMed
description The introduction of the European Union’s climate change legislation and the intended use of renewable energy sources instead of fossil fuels will significantly reduce the production of flue gas desulfurization (FGD) gypsum used as the raw material for gypsum mortar plasters’ production. This has forced mortar producers to look for alternative materials, including gypsum–cement composites. This work investigated the mechanical strength and linear extension of four gypsum–cement mortars with the gypsum content reduced to 30%. The authors showed that the cement admixture of 6 to 12% introduced into the prepared mortars resulted in the formation of gypsum–cement mortars, which fulfill the requirements of the EN 13279-1:2008 standard concerning mechanical strength. This publication took into account the use of scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and X-ray diffractometry to characterize the chemical and phase composition of the mortars up to 180 days of dry air curing and increased relative humidity (RH) conditions. The formation of thaumasite, ettringite, and mixed ettringite–thaumasite phases was interesting because of their deleterious effect on the durability of plaster mortars.
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spelling pubmed-103835522023-07-30 Effect of Portland Cement on the Selected Properties of Flue Gas Desulfurization Gypsum-Based Plasters Baran, Edyta Hynowski, Mariusz Kotwica, Łukasz Rogowski, Jacek Materials (Basel) Article The introduction of the European Union’s climate change legislation and the intended use of renewable energy sources instead of fossil fuels will significantly reduce the production of flue gas desulfurization (FGD) gypsum used as the raw material for gypsum mortar plasters’ production. This has forced mortar producers to look for alternative materials, including gypsum–cement composites. This work investigated the mechanical strength and linear extension of four gypsum–cement mortars with the gypsum content reduced to 30%. The authors showed that the cement admixture of 6 to 12% introduced into the prepared mortars resulted in the formation of gypsum–cement mortars, which fulfill the requirements of the EN 13279-1:2008 standard concerning mechanical strength. This publication took into account the use of scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and X-ray diffractometry to characterize the chemical and phase composition of the mortars up to 180 days of dry air curing and increased relative humidity (RH) conditions. The formation of thaumasite, ettringite, and mixed ettringite–thaumasite phases was interesting because of their deleterious effect on the durability of plaster mortars. MDPI 2023-07-18 /pmc/articles/PMC10383552/ /pubmed/37512332 http://dx.doi.org/10.3390/ma16145058 Text en © 2023 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
Baran, Edyta
Hynowski, Mariusz
Kotwica, Łukasz
Rogowski, Jacek
Effect of Portland Cement on the Selected Properties of Flue Gas Desulfurization Gypsum-Based Plasters
title Effect of Portland Cement on the Selected Properties of Flue Gas Desulfurization Gypsum-Based Plasters
title_full Effect of Portland Cement on the Selected Properties of Flue Gas Desulfurization Gypsum-Based Plasters
title_fullStr Effect of Portland Cement on the Selected Properties of Flue Gas Desulfurization Gypsum-Based Plasters
title_full_unstemmed Effect of Portland Cement on the Selected Properties of Flue Gas Desulfurization Gypsum-Based Plasters
title_short Effect of Portland Cement on the Selected Properties of Flue Gas Desulfurization Gypsum-Based Plasters
title_sort effect of portland cement on the selected properties of flue gas desulfurization gypsum-based plasters
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10383552/
https://www.ncbi.nlm.nih.gov/pubmed/37512332
http://dx.doi.org/10.3390/ma16145058
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