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Comparison of Hook and Straight Steel Fibers Addition on Malaysian Fly Ash-Based Geopolymer Concrete on the Slump, Density, Water Absorption and Mechanical Properties

Geopolymer concrete has the potential to replace ordinary Portland cement which can reduce carbon dioxide emission to the environment. The addition of different amounts of steel fibers, as well as different types of end-shape fibers, could alter the performance of geopolymer concrete. The source of...

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Autores principales: Faris, Meor Ahmad, Abdullah, Mohd Mustafa Al Bakri, Muniandy, Ratnasamy, Abu Hashim, Mohammad Firdaus, Błoch, Katarzyna, Jeż, Bartłomiej, Garus, Sebastian, Palutkiewicz, Paweł, Mohd Mortar, Nurul Aida, Ghazali, Mohd Fathullah
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7967149/
https://www.ncbi.nlm.nih.gov/pubmed/33803313
http://dx.doi.org/10.3390/ma14051310
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author Faris, Meor Ahmad
Abdullah, Mohd Mustafa Al Bakri
Muniandy, Ratnasamy
Abu Hashim, Mohammad Firdaus
Błoch, Katarzyna
Jeż, Bartłomiej
Garus, Sebastian
Palutkiewicz, Paweł
Mohd Mortar, Nurul Aida
Ghazali, Mohd Fathullah
author_facet Faris, Meor Ahmad
Abdullah, Mohd Mustafa Al Bakri
Muniandy, Ratnasamy
Abu Hashim, Mohammad Firdaus
Błoch, Katarzyna
Jeż, Bartłomiej
Garus, Sebastian
Palutkiewicz, Paweł
Mohd Mortar, Nurul Aida
Ghazali, Mohd Fathullah
author_sort Faris, Meor Ahmad
collection PubMed
description Geopolymer concrete has the potential to replace ordinary Portland cement which can reduce carbon dioxide emission to the environment. The addition of different amounts of steel fibers, as well as different types of end-shape fibers, could alter the performance of geopolymer concrete. The source of aluminosilicate (fly ash) used in the production of geopolymer concrete may lead to a different result. This study focuses on the comparison between Malaysian fly ash geopolymer concrete with the addition of hooked steel fibers and geopolymer concrete with the addition of straight-end steel fibers to the physical and mechanical properties. Malaysian fly ash was first characterized by X-ray fluorescence (XRF) to identify the chemical composition. The sample of steel fiber reinforced geopolymer concrete was produced by mixing fly ash, alkali activators, aggregates, and specific amounts of hook or straight steel fibers. The steel fibers addition for both types of fibers are 0%, 0.5%, 1.0%, 1.5%, and 2.0% by volume percentage. The samples were cured at room temperature. The physical properties (slump, density, and water absorption) of reinforced geopolymer concrete were studied. Meanwhile, a mechanical performance which is compressive, as well as the flexural strength was studied. The results show that the pattern in physical properties of geopolymer concrete for both types of fibers addition is almost similar where the slump is decreased with density and water absorption is increased with the increasing amount of fibers addition. However, the addition of hook steel fiber to the geopolymer concrete produced a lower slump than the addition of straight steel fibers. Meanwhile, the addition of hook steel fiber to the geopolymer concrete shows a higher density and water absorption compared to the sample with the addition of straight steel fibers. However, the difference is not significant. Besides, samples with the addition of hook steel fibers give better performance for compressive and flexural strength compared to the samples with the addition of straight steel fibers where the highest is at 1.0% of fibers addition.
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spelling pubmed-79671492021-03-18 Comparison of Hook and Straight Steel Fibers Addition on Malaysian Fly Ash-Based Geopolymer Concrete on the Slump, Density, Water Absorption and Mechanical Properties Faris, Meor Ahmad Abdullah, Mohd Mustafa Al Bakri Muniandy, Ratnasamy Abu Hashim, Mohammad Firdaus Błoch, Katarzyna Jeż, Bartłomiej Garus, Sebastian Palutkiewicz, Paweł Mohd Mortar, Nurul Aida Ghazali, Mohd Fathullah Materials (Basel) Article Geopolymer concrete has the potential to replace ordinary Portland cement which can reduce carbon dioxide emission to the environment. The addition of different amounts of steel fibers, as well as different types of end-shape fibers, could alter the performance of geopolymer concrete. The source of aluminosilicate (fly ash) used in the production of geopolymer concrete may lead to a different result. This study focuses on the comparison between Malaysian fly ash geopolymer concrete with the addition of hooked steel fibers and geopolymer concrete with the addition of straight-end steel fibers to the physical and mechanical properties. Malaysian fly ash was first characterized by X-ray fluorescence (XRF) to identify the chemical composition. The sample of steel fiber reinforced geopolymer concrete was produced by mixing fly ash, alkali activators, aggregates, and specific amounts of hook or straight steel fibers. The steel fibers addition for both types of fibers are 0%, 0.5%, 1.0%, 1.5%, and 2.0% by volume percentage. The samples were cured at room temperature. The physical properties (slump, density, and water absorption) of reinforced geopolymer concrete were studied. Meanwhile, a mechanical performance which is compressive, as well as the flexural strength was studied. The results show that the pattern in physical properties of geopolymer concrete for both types of fibers addition is almost similar where the slump is decreased with density and water absorption is increased with the increasing amount of fibers addition. However, the addition of hook steel fiber to the geopolymer concrete produced a lower slump than the addition of straight steel fibers. Meanwhile, the addition of hook steel fiber to the geopolymer concrete shows a higher density and water absorption compared to the sample with the addition of straight steel fibers. However, the difference is not significant. Besides, samples with the addition of hook steel fibers give better performance for compressive and flexural strength compared to the samples with the addition of straight steel fibers where the highest is at 1.0% of fibers addition. MDPI 2021-03-09 /pmc/articles/PMC7967149/ /pubmed/33803313 http://dx.doi.org/10.3390/ma14051310 Text en © 2021 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Faris, Meor Ahmad
Abdullah, Mohd Mustafa Al Bakri
Muniandy, Ratnasamy
Abu Hashim, Mohammad Firdaus
Błoch, Katarzyna
Jeż, Bartłomiej
Garus, Sebastian
Palutkiewicz, Paweł
Mohd Mortar, Nurul Aida
Ghazali, Mohd Fathullah
Comparison of Hook and Straight Steel Fibers Addition on Malaysian Fly Ash-Based Geopolymer Concrete on the Slump, Density, Water Absorption and Mechanical Properties
title Comparison of Hook and Straight Steel Fibers Addition on Malaysian Fly Ash-Based Geopolymer Concrete on the Slump, Density, Water Absorption and Mechanical Properties
title_full Comparison of Hook and Straight Steel Fibers Addition on Malaysian Fly Ash-Based Geopolymer Concrete on the Slump, Density, Water Absorption and Mechanical Properties
title_fullStr Comparison of Hook and Straight Steel Fibers Addition on Malaysian Fly Ash-Based Geopolymer Concrete on the Slump, Density, Water Absorption and Mechanical Properties
title_full_unstemmed Comparison of Hook and Straight Steel Fibers Addition on Malaysian Fly Ash-Based Geopolymer Concrete on the Slump, Density, Water Absorption and Mechanical Properties
title_short Comparison of Hook and Straight Steel Fibers Addition on Malaysian Fly Ash-Based Geopolymer Concrete on the Slump, Density, Water Absorption and Mechanical Properties
title_sort comparison of hook and straight steel fibers addition on malaysian fly ash-based geopolymer concrete on the slump, density, water absorption and mechanical properties
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7967149/
https://www.ncbi.nlm.nih.gov/pubmed/33803313
http://dx.doi.org/10.3390/ma14051310
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