Formation and hydration of eco-friendly cement using industrial wastes as raw materials

Abstract In this work, the optimal conditions of the synthesis of eco-friendly cement by using industrial wastes as well as the peculiarities of its early stage hydration were investigated. The eco-friendly cement was synthesized within the 1000–1250 °C temperature range when the targeted compositio...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	K. Baltakys, T. Dambrauskas, D. Rubinaite, R. Siauciunas, A. Grineviciene
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e022fb1aa803408b8dd858d3e8c055af
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:e022fb1aa803408b8dd858d3e8c055af
record_format	dspace
spelling	oai:doaj.org-article:e022fb1aa803408b8dd858d3e8c055af2021-12-02T17:03:50ZFormation and hydration of eco-friendly cement using industrial wastes as raw materials10.1038/s41598-021-94148-x2045-2322https://doaj.org/article/e022fb1aa803408b8dd858d3e8c055af2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94148-xhttps://doaj.org/toc/2045-2322Abstract In this work, the optimal conditions of the synthesis of eco-friendly cement by using industrial wastes as well as the peculiarities of its early stage hydration were investigated. The eco-friendly cement was synthesized within the 1000–1250 °C temperature range when the targeted composition was 60% of belite, 20% of ye’elimite, and 20% of brownmillerite. It was determined that the optimal sintering temperature for eco-friendly cement is 1100 °C because the primary compounds were fully reacted, and hydraulic active compounds were dominant in the products. Microcalorimetry analysis was performed for the investigation of early stage hydration. The best results of hydration were obtained with the eco-friendly cement which was produced by using mixtures with silica gel waste: three exothermic reactions were observed in the heat evolution curve, while the cumulative heat was equal to 264 J/g after 72 h. Additionally, the sequence of compounds formation during the first day of hydration was analyzed. It was determined that the composition of the initial mixture impacts the hydration rate of synthetic eco-friendly cement; however, it did not affect the mineralogical composition of the hydration products. These results were confirmed by XRD, STA, and SEM analysis.K. BaltakysT. DambrauskasD. RubinaiteR. SiauciunasA. GrinevicieneNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q K. Baltakys T. Dambrauskas D. Rubinaite R. Siauciunas A. Grineviciene Formation and hydration of eco-friendly cement using industrial wastes as raw materials
description	Abstract In this work, the optimal conditions of the synthesis of eco-friendly cement by using industrial wastes as well as the peculiarities of its early stage hydration were investigated. The eco-friendly cement was synthesized within the 1000–1250 °C temperature range when the targeted composition was 60% of belite, 20% of ye’elimite, and 20% of brownmillerite. It was determined that the optimal sintering temperature for eco-friendly cement is 1100 °C because the primary compounds were fully reacted, and hydraulic active compounds were dominant in the products. Microcalorimetry analysis was performed for the investigation of early stage hydration. The best results of hydration were obtained with the eco-friendly cement which was produced by using mixtures with silica gel waste: three exothermic reactions were observed in the heat evolution curve, while the cumulative heat was equal to 264 J/g after 72 h. Additionally, the sequence of compounds formation during the first day of hydration was analyzed. It was determined that the composition of the initial mixture impacts the hydration rate of synthetic eco-friendly cement; however, it did not affect the mineralogical composition of the hydration products. These results were confirmed by XRD, STA, and SEM analysis.
format	article
author	K. Baltakys T. Dambrauskas D. Rubinaite R. Siauciunas A. Grineviciene
author_facet	K. Baltakys T. Dambrauskas D. Rubinaite R. Siauciunas A. Grineviciene
author_sort	K. Baltakys
title	Formation and hydration of eco-friendly cement using industrial wastes as raw materials
title_short	Formation and hydration of eco-friendly cement using industrial wastes as raw materials
title_full	Formation and hydration of eco-friendly cement using industrial wastes as raw materials
title_fullStr	Formation and hydration of eco-friendly cement using industrial wastes as raw materials
title_full_unstemmed	Formation and hydration of eco-friendly cement using industrial wastes as raw materials
title_sort	formation and hydration of eco-friendly cement using industrial wastes as raw materials
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/e022fb1aa803408b8dd858d3e8c055af
work_keys_str_mv	AT kbaltakys formationandhydrationofecofriendlycementusingindustrialwastesasrawmaterials AT tdambrauskas formationandhydrationofecofriendlycementusingindustrialwastesasrawmaterials AT drubinaite formationandhydrationofecofriendlycementusingindustrialwastesasrawmaterials AT rsiauciunas formationandhydrationofecofriendlycementusingindustrialwastesasrawmaterials AT agrineviciene formationandhydrationofecofriendlycementusingindustrialwastesasrawmaterials
_version_	1718381880608292864

Formation and hydration of eco-friendly cement using industrial wastes as raw materials

Ejemplares similares