Modification of a cement binder in structural concrete for mine and underground construction

The issues of the modification of a binder in structural cement concrete for mine and underground construction with wastes of chemical enterprises are considered in the article. Hundreds of tons of waste are generated annually at chemical enterprises of the Russian Federation, polluting the environm...

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Autores principales:	Uglyanitsa Andrey, Duvarov Vladimir
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/ae3e5866e8614c38bb4e9897cda20ebc
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id	oai:doaj.org-article:ae3e5866e8614c38bb4e9897cda20ebc
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spelling	oai:doaj.org-article:ae3e5866e8614c38bb4e9897cda20ebc2021-11-08T15:19:21ZModification of a cement binder in structural concrete for mine and underground construction2267-124210.1051/e3sconf/202131501004https://doaj.org/article/ae3e5866e8614c38bb4e9897cda20ebc2021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/91/e3sconf_iims2021_01004.pdfhttps://doaj.org/toc/2267-1242The issues of the modification of a binder in structural cement concrete for mine and underground construction with wastes of chemical enterprises are considered in the article. Hundreds of tons of waste are generated annually at chemical enterprises of the Russian Federation, polluting the environment and requiring their disposal. The performed studies deal with the improvement of physical and mechanical properties of a cement binder with a dispersed manganese sludge modifier, which is a waste product of ammonia or methanol production, for its use in mine and underground construction. As a result of the studies performed, it was found that the addition of dispersed sludge with manganese oxide in an amount of 4% of the cement mass to a cement binder leads to the activation of the cement hydration process, while the rate of development of the plastic strength of the cement stone structure increases, the period of its structure formation reduces and the compressive cement stone strength increases by 17-18%, which makes it possible to reduce the cement content in structural concrete by 8.8-10.0% while maintaining its strength, reducing the cost of mine and underground structures and, as a result, reducing the cost of mining.Uglyanitsa AndreyDuvarov VladimirEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 315, p 01004 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Uglyanitsa Andrey Duvarov Vladimir Modification of a cement binder in structural concrete for mine and underground construction
description	The issues of the modification of a binder in structural cement concrete for mine and underground construction with wastes of chemical enterprises are considered in the article. Hundreds of tons of waste are generated annually at chemical enterprises of the Russian Federation, polluting the environment and requiring their disposal. The performed studies deal with the improvement of physical and mechanical properties of a cement binder with a dispersed manganese sludge modifier, which is a waste product of ammonia or methanol production, for its use in mine and underground construction. As a result of the studies performed, it was found that the addition of dispersed sludge with manganese oxide in an amount of 4% of the cement mass to a cement binder leads to the activation of the cement hydration process, while the rate of development of the plastic strength of the cement stone structure increases, the period of its structure formation reduces and the compressive cement stone strength increases by 17-18%, which makes it possible to reduce the cement content in structural concrete by 8.8-10.0% while maintaining its strength, reducing the cost of mine and underground structures and, as a result, reducing the cost of mining.
format	article
author	Uglyanitsa Andrey Duvarov Vladimir
author_facet	Uglyanitsa Andrey Duvarov Vladimir
author_sort	Uglyanitsa Andrey
title	Modification of a cement binder in structural concrete for mine and underground construction
title_short	Modification of a cement binder in structural concrete for mine and underground construction
title_full	Modification of a cement binder in structural concrete for mine and underground construction
title_fullStr	Modification of a cement binder in structural concrete for mine and underground construction
title_full_unstemmed	Modification of a cement binder in structural concrete for mine and underground construction
title_sort	modification of a cement binder in structural concrete for mine and underground construction
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/ae3e5866e8614c38bb4e9897cda20ebc
work_keys_str_mv	AT uglyanitsaandrey modificationofacementbinderinstructuralconcreteformineandundergroundconstruction AT duvarovvladimir modificationofacementbinderinstructuralconcreteformineandundergroundconstruction
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Modification of a cement binder in structural concrete for mine and underground construction

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