Effect of Fiber Reinforcement on the Compression and Flexural Strength of Fiber-Reinforced Geopolymers

This work aimed to determine the effect of the addition of different types of reinforcing fibers on the strength properties of geopolymers such as flexural and compressive strength. Geopolymers are an attractive alternative to conventional binders and building materials; however, one of the main pro...

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Autores principales:	Michał Łach, Bartłomiej Kluska, Damian Janus, Dawid Kabat, Kinga Pławecka, Kinga Korniejenko, Martin Duarte Guigou, Marta Choińska
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	geopolymers fiber composites reinforced by glass/carbon/basalt Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/11e7da2430b84c869a893643c57b7314
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spelling	oai:doaj.org-article:11e7da2430b84c869a893643c57b73142021-11-11T15:24:15ZEffect of Fiber Reinforcement on the Compression and Flexural Strength of Fiber-Reinforced Geopolymers10.3390/app1121104432076-3417https://doaj.org/article/11e7da2430b84c869a893643c57b73142021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/10443https://doaj.org/toc/2076-3417This work aimed to determine the effect of the addition of different types of reinforcing fibers on the strength properties of geopolymers such as flexural and compressive strength. Geopolymers are an attractive alternative to conventional binders and building materials; however, one of the main problems of their widespread use is their low resistance to brittle fracture. To improve the mechanical properties, reinforcement in the form of glass, carbon, and basalt fibers (as grids) was applied to geopolymers in the following work. Additionally, composites with these fibers were produced not only in the matrix of pure geopolymer but also as a hybrid variant with the addition of cement. Furthermore, basalt grids were used as reinforcement for geopolymers not only based on ash but also metakaolin. An additional variable used in the study was the molar concentration of the alkali solution (5 M and 10 M) for the different types of geopolymer samples. The mechanical properties of geopolymer materials and geopolymer–cement hybrids are the highest when reinforcement in the form of carbon fiber is used. Strength values for geopolymers reinforced with basalt mats depend on the number of reinforcement layers and the concentration of the alkaline solution used. All produced composites were tested for compressive strength and bending strength. When using basalt mesh, it was possible to achieve a bending strength of 12 MPa. The highest compressive strength that was achieved was the value of 66 MPa, while for samples not reinforced with fibers, only about 40 MPa was achieved.Michał ŁachBartłomiej KluskaDamian JanusDawid KabatKinga PławeckaKinga KorniejenkoMartin Duarte GuigouMarta ChoińskaMDPI AGarticlegeopolymersfiber compositesreinforced by glass/carbon/basaltTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10443, p 10443 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	geopolymers fiber composites reinforced by glass/carbon/basalt Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	geopolymers fiber composites reinforced by glass/carbon/basalt Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Michał Łach Bartłomiej Kluska Damian Janus Dawid Kabat Kinga Pławecka Kinga Korniejenko Martin Duarte Guigou Marta Choińska Effect of Fiber Reinforcement on the Compression and Flexural Strength of Fiber-Reinforced Geopolymers
description	This work aimed to determine the effect of the addition of different types of reinforcing fibers on the strength properties of geopolymers such as flexural and compressive strength. Geopolymers are an attractive alternative to conventional binders and building materials; however, one of the main problems of their widespread use is their low resistance to brittle fracture. To improve the mechanical properties, reinforcement in the form of glass, carbon, and basalt fibers (as grids) was applied to geopolymers in the following work. Additionally, composites with these fibers were produced not only in the matrix of pure geopolymer but also as a hybrid variant with the addition of cement. Furthermore, basalt grids were used as reinforcement for geopolymers not only based on ash but also metakaolin. An additional variable used in the study was the molar concentration of the alkali solution (5 M and 10 M) for the different types of geopolymer samples. The mechanical properties of geopolymer materials and geopolymer–cement hybrids are the highest when reinforcement in the form of carbon fiber is used. Strength values for geopolymers reinforced with basalt mats depend on the number of reinforcement layers and the concentration of the alkaline solution used. All produced composites were tested for compressive strength and bending strength. When using basalt mesh, it was possible to achieve a bending strength of 12 MPa. The highest compressive strength that was achieved was the value of 66 MPa, while for samples not reinforced with fibers, only about 40 MPa was achieved.
format	article
author	Michał Łach Bartłomiej Kluska Damian Janus Dawid Kabat Kinga Pławecka Kinga Korniejenko Martin Duarte Guigou Marta Choińska
author_facet	Michał Łach Bartłomiej Kluska Damian Janus Dawid Kabat Kinga Pławecka Kinga Korniejenko Martin Duarte Guigou Marta Choińska
author_sort	Michał Łach
title	Effect of Fiber Reinforcement on the Compression and Flexural Strength of Fiber-Reinforced Geopolymers
title_short	Effect of Fiber Reinforcement on the Compression and Flexural Strength of Fiber-Reinforced Geopolymers
title_full	Effect of Fiber Reinforcement on the Compression and Flexural Strength of Fiber-Reinforced Geopolymers
title_fullStr	Effect of Fiber Reinforcement on the Compression and Flexural Strength of Fiber-Reinforced Geopolymers
title_full_unstemmed	Effect of Fiber Reinforcement on the Compression and Flexural Strength of Fiber-Reinforced Geopolymers
title_sort	effect of fiber reinforcement on the compression and flexural strength of fiber-reinforced geopolymers
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/11e7da2430b84c869a893643c57b7314
work_keys_str_mv	AT michałłach effectoffiberreinforcementonthecompressionandflexuralstrengthoffiberreinforcedgeopolymers AT bartłomiejkluska effectoffiberreinforcementonthecompressionandflexuralstrengthoffiberreinforcedgeopolymers AT damianjanus effectoffiberreinforcementonthecompressionandflexuralstrengthoffiberreinforcedgeopolymers AT dawidkabat effectoffiberreinforcementonthecompressionandflexuralstrengthoffiberreinforcedgeopolymers AT kingapławecka effectoffiberreinforcementonthecompressionandflexuralstrengthoffiberreinforcedgeopolymers AT kingakorniejenko effectoffiberreinforcementonthecompressionandflexuralstrengthoffiberreinforcedgeopolymers AT martinduarteguigou effectoffiberreinforcementonthecompressionandflexuralstrengthoffiberreinforcedgeopolymers AT martachoinska effectoffiberreinforcementonthecompressionandflexuralstrengthoffiberreinforcedgeopolymers
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Effect of Fiber Reinforcement on the Compression and Flexural Strength of Fiber-Reinforced Geopolymers

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