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Influence of Sugarcane Bagasse Ash and Silica Fume on the Mechanical and Durability Properties of Concrete
Cement production is environmentally unsustainable due to the high anthropogenic carbon emissions produced. Supplementary cementitious materials (SCMs), derived from the by-products of different industries, have been deemed an effective way to reduce carbon emissions. The reduction in carbon emissio...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9104177/ https://www.ncbi.nlm.nih.gov/pubmed/35591351 http://dx.doi.org/10.3390/ma15093018 |
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author | Farrant, William Earl Babafemi, Adewumi John Kolawole, John Temitope Panda, Biranchi |
author_facet | Farrant, William Earl Babafemi, Adewumi John Kolawole, John Temitope Panda, Biranchi |
author_sort | Farrant, William Earl |
collection | PubMed |
description | Cement production is environmentally unsustainable due to the high anthropogenic carbon emissions produced. Supplementary cementitious materials (SCMs), derived from the by-products of different industries, have been deemed an effective way to reduce carbon emissions. The reduction in carbon emissions is achieved by lowering the clinker factor of cement, through a partial replacement with an SCM. Sugarcane Bagasse Ash (SCBA) is produced as an agricultural waste from the sugarcane industry and has gained a lot of attention for being a feasible and readily available pozzolanic material, underutilised as an SCM. This study evaluates alkali-activated sugarcane bagasse ash’s mechanical and durability performance, at varied contents, in binary blended cement concrete and ternary blended cement concrete containing silica fume (SF). Potassium Hydroxide (KOH), used as the alkali activator, is intended to enhance the reactivity of the ash, with the possibility of a high-volume SCBA content. The mechanical performance was investigated by compressive and split tensile strength tests, and durability performance was investigated using the Oxygen Permeability Index (OPI) test. In addition, a micro-CT porosity test was conducted to assess how the microstructure and porosity of the concrete affect the mechanical and durability performance. The results indicated that using SCBA in a ternary blend with SF can significantly improve the overall performance and create less porous concrete. At 30% SCBA and 10% SF replacement, the performance tests revealed the highest mechanical strength and the lowest permeability, outperforming the control concrete and the binary blended cement concrete containing only SCBA. |
format | Online Article Text |
id | pubmed-9104177 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-91041772022-05-14 Influence of Sugarcane Bagasse Ash and Silica Fume on the Mechanical and Durability Properties of Concrete Farrant, William Earl Babafemi, Adewumi John Kolawole, John Temitope Panda, Biranchi Materials (Basel) Article Cement production is environmentally unsustainable due to the high anthropogenic carbon emissions produced. Supplementary cementitious materials (SCMs), derived from the by-products of different industries, have been deemed an effective way to reduce carbon emissions. The reduction in carbon emissions is achieved by lowering the clinker factor of cement, through a partial replacement with an SCM. Sugarcane Bagasse Ash (SCBA) is produced as an agricultural waste from the sugarcane industry and has gained a lot of attention for being a feasible and readily available pozzolanic material, underutilised as an SCM. This study evaluates alkali-activated sugarcane bagasse ash’s mechanical and durability performance, at varied contents, in binary blended cement concrete and ternary blended cement concrete containing silica fume (SF). Potassium Hydroxide (KOH), used as the alkali activator, is intended to enhance the reactivity of the ash, with the possibility of a high-volume SCBA content. The mechanical performance was investigated by compressive and split tensile strength tests, and durability performance was investigated using the Oxygen Permeability Index (OPI) test. In addition, a micro-CT porosity test was conducted to assess how the microstructure and porosity of the concrete affect the mechanical and durability performance. The results indicated that using SCBA in a ternary blend with SF can significantly improve the overall performance and create less porous concrete. At 30% SCBA and 10% SF replacement, the performance tests revealed the highest mechanical strength and the lowest permeability, outperforming the control concrete and the binary blended cement concrete containing only SCBA. MDPI 2022-04-21 /pmc/articles/PMC9104177/ /pubmed/35591351 http://dx.doi.org/10.3390/ma15093018 Text en © 2022 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 Farrant, William Earl Babafemi, Adewumi John Kolawole, John Temitope Panda, Biranchi Influence of Sugarcane Bagasse Ash and Silica Fume on the Mechanical and Durability Properties of Concrete |
title | Influence of Sugarcane Bagasse Ash and Silica Fume on the Mechanical and Durability Properties of Concrete |
title_full | Influence of Sugarcane Bagasse Ash and Silica Fume on the Mechanical and Durability Properties of Concrete |
title_fullStr | Influence of Sugarcane Bagasse Ash and Silica Fume on the Mechanical and Durability Properties of Concrete |
title_full_unstemmed | Influence of Sugarcane Bagasse Ash and Silica Fume on the Mechanical and Durability Properties of Concrete |
title_short | Influence of Sugarcane Bagasse Ash and Silica Fume on the Mechanical and Durability Properties of Concrete |
title_sort | influence of sugarcane bagasse ash and silica fume on the mechanical and durability properties of concrete |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9104177/ https://www.ncbi.nlm.nih.gov/pubmed/35591351 http://dx.doi.org/10.3390/ma15093018 |
work_keys_str_mv | AT farrantwilliamearl influenceofsugarcanebagasseashandsilicafumeonthemechanicalanddurabilitypropertiesofconcrete AT babafemiadewumijohn influenceofsugarcanebagasseashandsilicafumeonthemechanicalanddurabilitypropertiesofconcrete AT kolawolejohntemitope influenceofsugarcanebagasseashandsilicafumeonthemechanicalanddurabilitypropertiesofconcrete AT pandabiranchi influenceofsugarcanebagasseashandsilicafumeonthemechanicalanddurabilitypropertiesofconcrete |