Dependence of mechanical and thermal properties on the composition of lightweight gypsum composites

One of the ways to use the treated gypsum waste is in gypsum mixtures for the production of gypsum blocks. Gypsum blocks can be used in standard interior as well as exterior applications and are made of gypsum, water, PP microfibres and are lightened with foam, which is created from a foaming addit...

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Main Authors: Hana Sekavová, Zdeněk Prošek, Pavel Tesárek
Format: Article
Language:English
Published: CTU Central Library 2023-07-01
Series:Acta Polytechnica CTU Proceedings
Subjects:
Online Access:https://ojs.cvut.cz/ojs/index.php/APP/article/view/9231
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author Hana Sekavová
Zdeněk Prošek
Pavel Tesárek
author_facet Hana Sekavová
Zdeněk Prošek
Pavel Tesárek
author_sort Hana Sekavová
collection DOAJ
description One of the ways to use the treated gypsum waste is in gypsum mixtures for the production of gypsum blocks. Gypsum blocks can be used in standard interior as well as exterior applications and are made of gypsum, water, PP microfibres and are lightened with foam, which is created from a foaming additive and water. Above all, the amount of foam significantly influences the bulk density of the resulting material, and the bulk density then has a major influence on the mechanical and thermal properties. The use of PP microfibres had a positive effect on the overall stability of the foamed structure, which resulted in an increase in compressive strength while maintaining good thermal insulation properties.
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spelling doaj.art-230b27db28964099afc42794e5f510722023-08-14T12:14:24ZengCTU Central LibraryActa Polytechnica CTU Proceedings2336-53822023-07-014010.14311/APP.2023.40.0088Dependence of mechanical and thermal properties on the composition of lightweight gypsum compositesHana Sekavová0Zdeněk Prošek1Pavel Tesárek2Czech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague, Czech Republic; KNAUF Praha spol. s r.o., Mladoboleslavská 949, 197 00 Prague 9, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague, Czech Republic; Czech Technical University in Prague, University Centre for Energy Efficient Buildings, Třinecká 1024, 273 43 Buštěhrad, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague, Czech Republic One of the ways to use the treated gypsum waste is in gypsum mixtures for the production of gypsum blocks. Gypsum blocks can be used in standard interior as well as exterior applications and are made of gypsum, water, PP microfibres and are lightened with foam, which is created from a foaming additive and water. Above all, the amount of foam significantly influences the bulk density of the resulting material, and the bulk density then has a major influence on the mechanical and thermal properties. The use of PP microfibres had a positive effect on the overall stability of the foamed structure, which resulted in an increase in compressive strength while maintaining good thermal insulation properties. https://ojs.cvut.cz/ojs/index.php/APP/article/view/9231mechanical propertiesthermal propertiesgypsumlightweight composite
spellingShingle Hana Sekavová
Zdeněk Prošek
Pavel Tesárek
Dependence of mechanical and thermal properties on the composition of lightweight gypsum composites
Acta Polytechnica CTU Proceedings
mechanical properties
thermal properties
gypsum
lightweight composite
title Dependence of mechanical and thermal properties on the composition of lightweight gypsum composites
title_full Dependence of mechanical and thermal properties on the composition of lightweight gypsum composites
title_fullStr Dependence of mechanical and thermal properties on the composition of lightweight gypsum composites
title_full_unstemmed Dependence of mechanical and thermal properties on the composition of lightweight gypsum composites
title_short Dependence of mechanical and thermal properties on the composition of lightweight gypsum composites
title_sort dependence of mechanical and thermal properties on the composition of lightweight gypsum composites
topic mechanical properties
thermal properties
gypsum
lightweight composite
url https://ojs.cvut.cz/ojs/index.php/APP/article/view/9231
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