New Metakaolin-Based Geopolymers with the Addition of Different Types of Waste Stone Powder
The search for new alternative raw materials and their subsequent use supports the sustainability of natural resources. This article describes the use of waste stone powder (WSP) in geopolymer synthesis. Five different types of WSP (feldspar, limestone, marlstone, dolomite, marble) were comprehensiv...
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doaj-c755dad7a65f4bc1ba2b95ab21af2d652021-08-26T13:39:36ZengMDPI AGCrystals2073-43522021-08-011198398310.3390/cryst11080983New Metakaolin-Based Geopolymers with the Addition of Different Types of Waste Stone PowderIvana Perná0Martina Novotná1Daniela Řimnáčová2Monika Šupová3Institute of Rock Structure and Mechanics, The Czech Academy of Sciences, V Holešovičkách 41, 182 09 Prague, Czech RepublicInstitute of Rock Structure and Mechanics, The Czech Academy of Sciences, V Holešovičkách 41, 182 09 Prague, Czech RepublicInstitute of Rock Structure and Mechanics, The Czech Academy of Sciences, V Holešovičkách 41, 182 09 Prague, Czech RepublicInstitute of Rock Structure and Mechanics, The Czech Academy of Sciences, V Holešovičkách 41, 182 09 Prague, Czech RepublicThe search for new alternative raw materials and their subsequent use supports the sustainability of natural resources. This article describes the use of waste stone powder (WSP) in geopolymer synthesis. Five different types of WSP (feldspar, limestone, marlstone, dolomite, marble) were comprehensively characterized and their influence on the resulting properties (especially mechanical and textural properties, setting time and structure) of metakaolin-based geopolymer composites was investigated. Their comparison with a geopolymer composite containing only quartz sand has revealed that WSP additions have a small but positive effect on the mechanical or textural properties of geopolymers. Moreover, setting time measurements have shown that waste stone powders can be used as an accelerator of geopolymer reaction solidification. The results demonstrated that the mentioned types of WSP, previously landfilled, can be used for the preparation of geopolymers. This can help reduce the environmental burden.https://www.mdpi.com/2073-4352/11/8/983geopolymerwaste stone powderrecyclingcharacterizationmechanical propertiestextural properties |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ivana Perná Martina Novotná Daniela Řimnáčová Monika Šupová |
spellingShingle |
Ivana Perná Martina Novotná Daniela Řimnáčová Monika Šupová New Metakaolin-Based Geopolymers with the Addition of Different Types of Waste Stone Powder Crystals geopolymer waste stone powder recycling characterization mechanical properties textural properties |
author_facet |
Ivana Perná Martina Novotná Daniela Řimnáčová Monika Šupová |
author_sort |
Ivana Perná |
title |
New Metakaolin-Based Geopolymers with the Addition of Different Types of Waste Stone Powder |
title_short |
New Metakaolin-Based Geopolymers with the Addition of Different Types of Waste Stone Powder |
title_full |
New Metakaolin-Based Geopolymers with the Addition of Different Types of Waste Stone Powder |
title_fullStr |
New Metakaolin-Based Geopolymers with the Addition of Different Types of Waste Stone Powder |
title_full_unstemmed |
New Metakaolin-Based Geopolymers with the Addition of Different Types of Waste Stone Powder |
title_sort |
new metakaolin-based geopolymers with the addition of different types of waste stone powder |
publisher |
MDPI AG |
series |
Crystals |
issn |
2073-4352 |
publishDate |
2021-08-01 |
description |
The search for new alternative raw materials and their subsequent use supports the sustainability of natural resources. This article describes the use of waste stone powder (WSP) in geopolymer synthesis. Five different types of WSP (feldspar, limestone, marlstone, dolomite, marble) were comprehensively characterized and their influence on the resulting properties (especially mechanical and textural properties, setting time and structure) of metakaolin-based geopolymer composites was investigated. Their comparison with a geopolymer composite containing only quartz sand has revealed that WSP additions have a small but positive effect on the mechanical or textural properties of geopolymers. Moreover, setting time measurements have shown that waste stone powders can be used as an accelerator of geopolymer reaction solidification. The results demonstrated that the mentioned types of WSP, previously landfilled, can be used for the preparation of geopolymers. This can help reduce the environmental burden. |
topic |
geopolymer waste stone powder recycling characterization mechanical properties textural properties |
url |
https://www.mdpi.com/2073-4352/11/8/983 |
work_keys_str_mv |
AT ivanaperna newmetakaolinbasedgeopolymerswiththeadditionofdifferenttypesofwastestonepowder AT martinanovotna newmetakaolinbasedgeopolymerswiththeadditionofdifferenttypesofwastestonepowder AT danielarimnacova newmetakaolinbasedgeopolymerswiththeadditionofdifferenttypesofwastestonepowder AT monikasupova newmetakaolinbasedgeopolymerswiththeadditionofdifferenttypesofwastestonepowder |
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