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Concrete Made with Iron Ore Tailings as a Fine Aggregate: A Step towards Sustainable Concrete

The need for low-cost raw materials is driven by the fact that iron ore tailings, a prevalent kind of hazardous solid waste, have created major environmental issues. Although many studies have focused on using iron ore tailing (IOT) in concrete and have reported positive results, readers may find it...

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Autores principales: Arbili, Mohamed Moafak, Alqurashi, Muwaffaq, Majdi, Ali, Ahmad, Jawad, Deifalla, Ahmed Farouk
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9502883/
https://www.ncbi.nlm.nih.gov/pubmed/36143547
http://dx.doi.org/10.3390/ma15186236
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author Arbili, Mohamed Moafak
Alqurashi, Muwaffaq
Majdi, Ali
Ahmad, Jawad
Deifalla, Ahmed Farouk
author_facet Arbili, Mohamed Moafak
Alqurashi, Muwaffaq
Majdi, Ali
Ahmad, Jawad
Deifalla, Ahmed Farouk
author_sort Arbili, Mohamed Moafak
collection PubMed
description The need for low-cost raw materials is driven by the fact that iron ore tailings, a prevalent kind of hazardous solid waste, have created major environmental issues. Although many studies have focused on using iron ore tailing (IOT) in concrete and have reported positive results, readers may find it difficult to accurately assess the behaviors of IOT in concrete due to the scattered nature of the information. Therefore, a comprehensive assessment of IOT in concrete is necessary. This paper thoroughly reviews the characteristics of concrete that contains IOT such as fresh properties, mechanical properties and durability at different age of curing. The outcome of this review indicates that by using IOT, concrete’s mechanical properties and durability improved, but its flowability decreased. Compressive strength of concrete with 20% substitution of IOT is 14% more than reference concrete. Furthermore, up to 40% substitution of IOT produces concrete that has sufficient flowability and compactability. Scan electronic microscopy results indicate a weak interfacial transition zone (ITZ). The optimum IOT dosage is important since a greater dose may decrease the strength properties and durability owing to a lack of fluidity. Depending on the physical and chemical composition of IOT, the average value of optimum percentages ranges from 30 to 40%. The assessment also recommends areas of unsolved research for future investigations.
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spelling pubmed-95028832022-09-24 Concrete Made with Iron Ore Tailings as a Fine Aggregate: A Step towards Sustainable Concrete Arbili, Mohamed Moafak Alqurashi, Muwaffaq Majdi, Ali Ahmad, Jawad Deifalla, Ahmed Farouk Materials (Basel) Article The need for low-cost raw materials is driven by the fact that iron ore tailings, a prevalent kind of hazardous solid waste, have created major environmental issues. Although many studies have focused on using iron ore tailing (IOT) in concrete and have reported positive results, readers may find it difficult to accurately assess the behaviors of IOT in concrete due to the scattered nature of the information. Therefore, a comprehensive assessment of IOT in concrete is necessary. This paper thoroughly reviews the characteristics of concrete that contains IOT such as fresh properties, mechanical properties and durability at different age of curing. The outcome of this review indicates that by using IOT, concrete’s mechanical properties and durability improved, but its flowability decreased. Compressive strength of concrete with 20% substitution of IOT is 14% more than reference concrete. Furthermore, up to 40% substitution of IOT produces concrete that has sufficient flowability and compactability. Scan electronic microscopy results indicate a weak interfacial transition zone (ITZ). The optimum IOT dosage is important since a greater dose may decrease the strength properties and durability owing to a lack of fluidity. Depending on the physical and chemical composition of IOT, the average value of optimum percentages ranges from 30 to 40%. The assessment also recommends areas of unsolved research for future investigations. MDPI 2022-09-08 /pmc/articles/PMC9502883/ /pubmed/36143547 http://dx.doi.org/10.3390/ma15186236 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
Arbili, Mohamed Moafak
Alqurashi, Muwaffaq
Majdi, Ali
Ahmad, Jawad
Deifalla, Ahmed Farouk
Concrete Made with Iron Ore Tailings as a Fine Aggregate: A Step towards Sustainable Concrete
title Concrete Made with Iron Ore Tailings as a Fine Aggregate: A Step towards Sustainable Concrete
title_full Concrete Made with Iron Ore Tailings as a Fine Aggregate: A Step towards Sustainable Concrete
title_fullStr Concrete Made with Iron Ore Tailings as a Fine Aggregate: A Step towards Sustainable Concrete
title_full_unstemmed Concrete Made with Iron Ore Tailings as a Fine Aggregate: A Step towards Sustainable Concrete
title_short Concrete Made with Iron Ore Tailings as a Fine Aggregate: A Step towards Sustainable Concrete
title_sort concrete made with iron ore tailings as a fine aggregate: a step towards sustainable concrete
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9502883/
https://www.ncbi.nlm.nih.gov/pubmed/36143547
http://dx.doi.org/10.3390/ma15186236
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