$Eco-friendly High-Strength Refractory Concrete Containing Calcium Alumina Cement by Reusing Granite Waste as Aggregate$
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Eco-friendly High-Strength Refractory Concrete Containing Calcium Alumina Cement by Reusing Granite Waste as Aggregate

Abstract Besides preventing valuable natural resources from going to waste, using stone waste from stone processing plants in concrete helps reduce environmental pollution and, therefore, offers a convenient route to sustainable development. The present study aims to use granite waste (GW) in high-s...

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Autores principales:	Kourosh Shirani, Mohammad Reisi, Mohammad Safari Savadkoohi
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	sustainable development granite wastes high-strength refractory concrete compressive strength flexural strength Systems of building construction. Including fireproof construction, concrete construction TH1000-1725
Acceso en línea:	https://doaj.org/article/59dfa01a1d224a1f9f0149e47d14151e
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spelling	oai:doaj.org-article:59dfa01a1d224a1f9f0149e47d14151e2021-12-05T12:20:52ZEco-friendly High-Strength Refractory Concrete Containing Calcium Alumina Cement by Reusing Granite Waste as Aggregate10.1186/s40069-021-00483-81976-04852234-1315https://doaj.org/article/59dfa01a1d224a1f9f0149e47d14151e2021-11-01T00:00:00Zhttps://doi.org/10.1186/s40069-021-00483-8https://doaj.org/toc/1976-0485https://doaj.org/toc/2234-1315Abstract Besides preventing valuable natural resources from going to waste, using stone waste from stone processing plants in concrete helps reduce environmental pollution and, therefore, offers a convenient route to sustainable development. The present study aims to use granite waste (GW) in high-strength refractory concrete. Sixteen high-strength refractory concrete mixes, including two water-to-binder ratios (W/B = 0.17 and 0.2), two silica-fume-to-binder ratios (SF/B = 0.15 and 0.2), two binder contents (B = 1200 and 1400 kg/m3), and two replacement ratios of silica sand by granite waste (GW/Agg = 0 and 50%) were designed and prepared with high-alumina cement (HAC). The concrete specimens were exposed to 1200 °C. Compressive and flexural strength and scanning electron microscopy (SEM) tests were performed on specimens of concrete mixes before and after heating. It was found that in specimens with high binder content (1400 kg/m3), replacing 50% silica sand with GW (GW/Agg = 50%) in refractory concrete improves compressive and flexural strengths by 3–15 and 4–24% before heating, respectively. It was also shown that using GW to replace silica aggregates in concrete specimens with a 1200 kg/m3 binder content not only did not undermine, but also improved the compressive and flexural strengths of refractory concrete after heating by 20–78% and 15–60%, respectively, as a result of sintering. Meanwhile, in the case of the concrete with 1400 kg/m3 binder content, adding GW exacerbated its loss of compressive and flexural strengths after heating due to little or lack of sintering.Kourosh ShiraniMohammad ReisiMohammad Safari SavadkoohiSpringerOpenarticlesustainable developmentgranite wasteshigh-strength refractory concretecompressive strengthflexural strengthSystems of building construction. Including fireproof construction, concrete constructionTH1000-1725ENInternational Journal of Concrete Structures and Materials, Vol 15, Iss 1, Pp 1-21 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	sustainable development granite wastes high-strength refractory concrete compressive strength flexural strength Systems of building construction. Including fireproof construction, concrete construction TH1000-1725
spellingShingle	sustainable development granite wastes high-strength refractory concrete compressive strength flexural strength Systems of building construction. Including fireproof construction, concrete construction TH1000-1725 Kourosh Shirani Mohammad Reisi Mohammad Safari Savadkoohi Eco-friendly High-Strength Refractory Concrete Containing Calcium Alumina Cement by Reusing Granite Waste as Aggregate
description	Abstract Besides preventing valuable natural resources from going to waste, using stone waste from stone processing plants in concrete helps reduce environmental pollution and, therefore, offers a convenient route to sustainable development. The present study aims to use granite waste (GW) in high-strength refractory concrete. Sixteen high-strength refractory concrete mixes, including two water-to-binder ratios (W/B = 0.17 and 0.2), two silica-fume-to-binder ratios (SF/B = 0.15 and 0.2), two binder contents (B = 1200 and 1400 kg/m3), and two replacement ratios of silica sand by granite waste (GW/Agg = 0 and 50%) were designed and prepared with high-alumina cement (HAC). The concrete specimens were exposed to 1200 °C. Compressive and flexural strength and scanning electron microscopy (SEM) tests were performed on specimens of concrete mixes before and after heating. It was found that in specimens with high binder content (1400 kg/m3), replacing 50% silica sand with GW (GW/Agg = 50%) in refractory concrete improves compressive and flexural strengths by 3–15 and 4–24% before heating, respectively. It was also shown that using GW to replace silica aggregates in concrete specimens with a 1200 kg/m3 binder content not only did not undermine, but also improved the compressive and flexural strengths of refractory concrete after heating by 20–78% and 15–60%, respectively, as a result of sintering. Meanwhile, in the case of the concrete with 1400 kg/m3 binder content, adding GW exacerbated its loss of compressive and flexural strengths after heating due to little or lack of sintering.
format	article
author	Kourosh Shirani Mohammad Reisi Mohammad Safari Savadkoohi
author_facet	Kourosh Shirani Mohammad Reisi Mohammad Safari Savadkoohi
author_sort	Kourosh Shirani
title	Eco-friendly High-Strength Refractory Concrete Containing Calcium Alumina Cement by Reusing Granite Waste as Aggregate
title_short	Eco-friendly High-Strength Refractory Concrete Containing Calcium Alumina Cement by Reusing Granite Waste as Aggregate
title_full	Eco-friendly High-Strength Refractory Concrete Containing Calcium Alumina Cement by Reusing Granite Waste as Aggregate
title_fullStr	Eco-friendly High-Strength Refractory Concrete Containing Calcium Alumina Cement by Reusing Granite Waste as Aggregate
title_full_unstemmed	Eco-friendly High-Strength Refractory Concrete Containing Calcium Alumina Cement by Reusing Granite Waste as Aggregate
title_sort	eco-friendly high-strength refractory concrete containing calcium alumina cement by reusing granite waste as aggregate
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/59dfa01a1d224a1f9f0149e47d14151e
work_keys_str_mv	AT kouroshshirani ecofriendlyhighstrengthrefractoryconcretecontainingcalciumaluminacementbyreusinggranitewasteasaggregate AT mohammadreisi ecofriendlyhighstrengthrefractoryconcretecontainingcalciumaluminacementbyreusinggranitewasteasaggregate AT mohammadsafarisavadkoohi ecofriendlyhighstrengthrefractoryconcretecontainingcalciumaluminacementbyreusinggranitewasteasaggregate
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Eco-friendly High-Strength Refractory Concrete Containing Calcium Alumina Cement by Reusing Granite Waste as Aggregate

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