Use of Ash and Slag Waste from Thermal Power Plants as an Active Component of Building Materials

This paper presents the use of ash and slag waste generated from the combustion of coal at thermal power plants as a secondary raw material in various areas of industry. The process of separation of ash and slag is considered into the following components: coal, magnetic concentrate, and aluminum si...

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Main Authors: Yuriy Yu. Kosivtsov, Kirill Chalov, Mikhail G. Sulman, Yuri Lugovoy, Tatiana Novichenkova, Victoria Petropavlovskaya, Shamil Gadzhiev, Oleg Popel
Format: Article
Language:English
Published: AIDIC Servizi S.r.l. 2021-11-01
Series:Chemical Engineering Transactions
Online Access:https://www.cetjournal.it/index.php/cet/article/view/11849
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author Yuriy Yu. Kosivtsov
Kirill Chalov
Mikhail G. Sulman
Yuri Lugovoy
Tatiana Novichenkova
Victoria Petropavlovskaya
Shamil Gadzhiev
Oleg Popel
author_facet Yuriy Yu. Kosivtsov
Kirill Chalov
Mikhail G. Sulman
Yuri Lugovoy
Tatiana Novichenkova
Victoria Petropavlovskaya
Shamil Gadzhiev
Oleg Popel
author_sort Yuriy Yu. Kosivtsov
collection DOAJ
description This paper presents the use of ash and slag waste generated from the combustion of coal at thermal power plants as a secondary raw material in various areas of industry. The process of separation of ash and slag is considered into the following components: coal, magnetic concentrate, and aluminum silicate concentrates. The possibility of using aluminum silicate concentrate in the building industry for the production of mineral binders and premixes is investigated. Mineral binding compositions based on gypsum were studied by thermogravimetric methods (differential scanning calorimeter DSC Q2000, thermogravimetric analyzer TG 209 F1). The influence of aluminosilicate microspheres on the quality of the building material was evaluated. The introduction of aluminosilicate concentrate into the building composition reduces the moisture content by 1 %, but the weight loss profile does not change. This indicates the redistribution of microspheres in the volume of the mineral binder composition and the formation of a new physical phase. When using a superplasticizer (Melflux 1641F1), the mechanism of water loss (additional peak) changes. There is a change in the formation of phase contact in the condensed system.
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spelling doaj.art-5d481c454b144ac980a978bf7c11db552022-12-21T22:57:08ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162021-11-018810.3303/CET2188056Use of Ash and Slag Waste from Thermal Power Plants as an Active Component of Building MaterialsYuriy Yu. KosivtsovKirill ChalovMikhail G. SulmanYuri Lugovoy Tatiana NovichenkovaVictoria PetropavlovskayaShamil GadzhievOleg PopelThis paper presents the use of ash and slag waste generated from the combustion of coal at thermal power plants as a secondary raw material in various areas of industry. The process of separation of ash and slag is considered into the following components: coal, magnetic concentrate, and aluminum silicate concentrates. The possibility of using aluminum silicate concentrate in the building industry for the production of mineral binders and premixes is investigated. Mineral binding compositions based on gypsum were studied by thermogravimetric methods (differential scanning calorimeter DSC Q2000, thermogravimetric analyzer TG 209 F1). The influence of aluminosilicate microspheres on the quality of the building material was evaluated. The introduction of aluminosilicate concentrate into the building composition reduces the moisture content by 1 %, but the weight loss profile does not change. This indicates the redistribution of microspheres in the volume of the mineral binder composition and the formation of a new physical phase. When using a superplasticizer (Melflux 1641F1), the mechanism of water loss (additional peak) changes. There is a change in the formation of phase contact in the condensed system.https://www.cetjournal.it/index.php/cet/article/view/11849
spellingShingle Yuriy Yu. Kosivtsov
Kirill Chalov
Mikhail G. Sulman
Yuri Lugovoy
Tatiana Novichenkova
Victoria Petropavlovskaya
Shamil Gadzhiev
Oleg Popel
Use of Ash and Slag Waste from Thermal Power Plants as an Active Component of Building Materials
Chemical Engineering Transactions
title Use of Ash and Slag Waste from Thermal Power Plants as an Active Component of Building Materials
title_full Use of Ash and Slag Waste from Thermal Power Plants as an Active Component of Building Materials
title_fullStr Use of Ash and Slag Waste from Thermal Power Plants as an Active Component of Building Materials
title_full_unstemmed Use of Ash and Slag Waste from Thermal Power Plants as an Active Component of Building Materials
title_short Use of Ash and Slag Waste from Thermal Power Plants as an Active Component of Building Materials
title_sort use of ash and slag waste from thermal power plants as an active component of building materials
url https://www.cetjournal.it/index.php/cet/article/view/11849
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AT victoriapetropavlovskaya useofashandslagwastefromthermalpowerplantsasanactivecomponentofbuildingmaterials
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