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Nano-Modified Vibrocentrifuged Concrete with Granulated Blast Slag: The Relationship between Mechanical Properties and Micro-Structural Analysis

Currently, in civil engineering, the relevant direction is to minimize the cost of the manufacture of the hollow structures of annular sections, as well as their construction and installation efficiency. To optimize the costs associated with building products and structures, it is proposed to apply...

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Autores principales: Beskopylny, Alexey N., Shcherban’, Evgenii M., Stel’makh, Sergey A., Mailyan, Levon R., Meskhi, Besarion, Evtushenko, Alexandr, Varavka, Valery, Beskopylny, Nikita
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9230015/
https://www.ncbi.nlm.nih.gov/pubmed/35744311
http://dx.doi.org/10.3390/ma15124254
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author Beskopylny, Alexey N.
Shcherban’, Evgenii M.
Stel’makh, Sergey A.
Mailyan, Levon R.
Meskhi, Besarion
Evtushenko, Alexandr
Varavka, Valery
Beskopylny, Nikita
author_facet Beskopylny, Alexey N.
Shcherban’, Evgenii M.
Stel’makh, Sergey A.
Mailyan, Levon R.
Meskhi, Besarion
Evtushenko, Alexandr
Varavka, Valery
Beskopylny, Nikita
author_sort Beskopylny, Alexey N.
collection PubMed
description Currently, in civil engineering, the relevant direction is to minimize the cost of the manufacture of the hollow structures of annular sections, as well as their construction and installation efficiency. To optimize the costs associated with building products and structures, it is proposed to apply the technology of vibrocentrifugation, to reconsider and comprehensively approach the raw materials for the manufacture of such products and structures. The purpose of this study is a theoretical substantiation and experimental verification with analytical numerical confirmation of the possibility of creating improved variotropic structures of vibrocentrifuged concrete nano-modified with ground granulated blast-furnace slag. The study used the methods of electron microscopy, laser granulometry, and X-ray diffraction. Slag activation was carried out in a planetary ball mill; samples were prepared on a special installation developed by the authors—a vibrocentrifuge. The optimal and effective prescription–technological factors were experimentally derived and confirmed at the microlevel using structural analysis. The mathematical dependencies among the composition, macrostructure, microstructure, and final properties of vibrocentrifuged concrete nano-modified by slag are determined. Empirical relationships were identified to express the variation of some mechanical parameters and identify the relationship between them and the composition of the mixture. The optimal dosage of slag was determined, which is 40%. Increases in strength indicators ranged from 16% to 27, density—3%.
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spelling pubmed-92300152022-06-25 Nano-Modified Vibrocentrifuged Concrete with Granulated Blast Slag: The Relationship between Mechanical Properties and Micro-Structural Analysis Beskopylny, Alexey N. Shcherban’, Evgenii M. Stel’makh, Sergey A. Mailyan, Levon R. Meskhi, Besarion Evtushenko, Alexandr Varavka, Valery Beskopylny, Nikita Materials (Basel) Article Currently, in civil engineering, the relevant direction is to minimize the cost of the manufacture of the hollow structures of annular sections, as well as their construction and installation efficiency. To optimize the costs associated with building products and structures, it is proposed to apply the technology of vibrocentrifugation, to reconsider and comprehensively approach the raw materials for the manufacture of such products and structures. The purpose of this study is a theoretical substantiation and experimental verification with analytical numerical confirmation of the possibility of creating improved variotropic structures of vibrocentrifuged concrete nano-modified with ground granulated blast-furnace slag. The study used the methods of electron microscopy, laser granulometry, and X-ray diffraction. Slag activation was carried out in a planetary ball mill; samples were prepared on a special installation developed by the authors—a vibrocentrifuge. The optimal and effective prescription–technological factors were experimentally derived and confirmed at the microlevel using structural analysis. The mathematical dependencies among the composition, macrostructure, microstructure, and final properties of vibrocentrifuged concrete nano-modified by slag are determined. Empirical relationships were identified to express the variation of some mechanical parameters and identify the relationship between them and the composition of the mixture. The optimal dosage of slag was determined, which is 40%. Increases in strength indicators ranged from 16% to 27, density—3%. MDPI 2022-06-15 /pmc/articles/PMC9230015/ /pubmed/35744311 http://dx.doi.org/10.3390/ma15124254 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
Beskopylny, Alexey N.
Shcherban’, Evgenii M.
Stel’makh, Sergey A.
Mailyan, Levon R.
Meskhi, Besarion
Evtushenko, Alexandr
Varavka, Valery
Beskopylny, Nikita
Nano-Modified Vibrocentrifuged Concrete with Granulated Blast Slag: The Relationship between Mechanical Properties and Micro-Structural Analysis
title Nano-Modified Vibrocentrifuged Concrete with Granulated Blast Slag: The Relationship between Mechanical Properties and Micro-Structural Analysis
title_full Nano-Modified Vibrocentrifuged Concrete with Granulated Blast Slag: The Relationship between Mechanical Properties and Micro-Structural Analysis
title_fullStr Nano-Modified Vibrocentrifuged Concrete with Granulated Blast Slag: The Relationship between Mechanical Properties and Micro-Structural Analysis
title_full_unstemmed Nano-Modified Vibrocentrifuged Concrete with Granulated Blast Slag: The Relationship between Mechanical Properties and Micro-Structural Analysis
title_short Nano-Modified Vibrocentrifuged Concrete with Granulated Blast Slag: The Relationship between Mechanical Properties and Micro-Structural Analysis
title_sort nano-modified vibrocentrifuged concrete with granulated blast slag: the relationship between mechanical properties and micro-structural analysis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9230015/
https://www.ncbi.nlm.nih.gov/pubmed/35744311
http://dx.doi.org/10.3390/ma15124254
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