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Waste to Wealth Strategy: Preparation and Properties of Lightweight Al(2)O(3)-SiO(2)-Rich Castables Using Aluminum Dross Waste

Aluminum dross is a well-known industrial waste generated in the aluminium industry, and its recycling and reuse is still a worldwide issue. Herein, aluminum dross waste (ADW) was recycled to progressively replace the aggregate fraction of clay at 70, 75, 80, 85, and 90 wt% for the fabrication of Al...

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Autores principales: Su, Nan, Li, Zishen, Ding, Youdong, Yang, Hongliang, Zhang, Jingzhou, Fu, Gaofeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8707143/
https://www.ncbi.nlm.nih.gov/pubmed/34947395
http://dx.doi.org/10.3390/ma14247803
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author Su, Nan
Li, Zishen
Ding, Youdong
Yang, Hongliang
Zhang, Jingzhou
Fu, Gaofeng
author_facet Su, Nan
Li, Zishen
Ding, Youdong
Yang, Hongliang
Zhang, Jingzhou
Fu, Gaofeng
author_sort Su, Nan
collection PubMed
description Aluminum dross is a well-known industrial waste generated in the aluminium industry, and its recycling and reuse is still a worldwide issue. Herein, aluminum dross waste (ADW) was recycled to progressively replace the aggregate fraction of clay at 70, 75, 80, 85, and 90 wt% for the fabrication of Al(2)O(3)-SiO(2)-rich porous castable refractories. Their physical properties and mechanical behavior were assessed by the measurement of linear shrinkage rate, bulk density, apparent porosity, cold crushing strength, and thermal conductivity. The microstructure and phase evolutions were analyzed via scanning electron microscopy (SEM) and X-ray diffraction (XRD). The incorporation of 85 wt% of ADW allowed the development of a waste-containing conventional refractory castable with improved properties as compared to those of the other samples. The sustainable refractory castable exhibited decent thermal conductivity and physical and mechanical characteristics, and is suitable for application as reheating furnace lining. It is a “green” practice to partially replace the traditional raw materials with industrial waste in the manufacture of conventional refractory castables and provides environmental and economic benefits.
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spelling pubmed-87071432021-12-25 Waste to Wealth Strategy: Preparation and Properties of Lightweight Al(2)O(3)-SiO(2)-Rich Castables Using Aluminum Dross Waste Su, Nan Li, Zishen Ding, Youdong Yang, Hongliang Zhang, Jingzhou Fu, Gaofeng Materials (Basel) Article Aluminum dross is a well-known industrial waste generated in the aluminium industry, and its recycling and reuse is still a worldwide issue. Herein, aluminum dross waste (ADW) was recycled to progressively replace the aggregate fraction of clay at 70, 75, 80, 85, and 90 wt% for the fabrication of Al(2)O(3)-SiO(2)-rich porous castable refractories. Their physical properties and mechanical behavior were assessed by the measurement of linear shrinkage rate, bulk density, apparent porosity, cold crushing strength, and thermal conductivity. The microstructure and phase evolutions were analyzed via scanning electron microscopy (SEM) and X-ray diffraction (XRD). The incorporation of 85 wt% of ADW allowed the development of a waste-containing conventional refractory castable with improved properties as compared to those of the other samples. The sustainable refractory castable exhibited decent thermal conductivity and physical and mechanical characteristics, and is suitable for application as reheating furnace lining. It is a “green” practice to partially replace the traditional raw materials with industrial waste in the manufacture of conventional refractory castables and provides environmental and economic benefits. MDPI 2021-12-16 /pmc/articles/PMC8707143/ /pubmed/34947395 http://dx.doi.org/10.3390/ma14247803 Text en © 2021 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
Su, Nan
Li, Zishen
Ding, Youdong
Yang, Hongliang
Zhang, Jingzhou
Fu, Gaofeng
Waste to Wealth Strategy: Preparation and Properties of Lightweight Al(2)O(3)-SiO(2)-Rich Castables Using Aluminum Dross Waste
title Waste to Wealth Strategy: Preparation and Properties of Lightweight Al(2)O(3)-SiO(2)-Rich Castables Using Aluminum Dross Waste
title_full Waste to Wealth Strategy: Preparation and Properties of Lightweight Al(2)O(3)-SiO(2)-Rich Castables Using Aluminum Dross Waste
title_fullStr Waste to Wealth Strategy: Preparation and Properties of Lightweight Al(2)O(3)-SiO(2)-Rich Castables Using Aluminum Dross Waste
title_full_unstemmed Waste to Wealth Strategy: Preparation and Properties of Lightweight Al(2)O(3)-SiO(2)-Rich Castables Using Aluminum Dross Waste
title_short Waste to Wealth Strategy: Preparation and Properties of Lightweight Al(2)O(3)-SiO(2)-Rich Castables Using Aluminum Dross Waste
title_sort waste to wealth strategy: preparation and properties of lightweight al(2)o(3)-sio(2)-rich castables using aluminum dross waste
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8707143/
https://www.ncbi.nlm.nih.gov/pubmed/34947395
http://dx.doi.org/10.3390/ma14247803
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