Utilization of Industrial Byproducts for Enhancing the Properties of Cement Mortars at Elevated Temperatures

The research on industrial byproducts, such as slags and fly ash, was intense during the last decades in the building sector. Apart from the environmental benefits coming from their exploitation, their application may lead to the production of cost effective and durable building materials, such as m...

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Autores principales:	Vasiliki Pachta, Eleftherios K. Anastasiou
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	elevated temperatures mortars fly ash slag cement Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/b30a7feb5859420aa592639eb79a190c
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spelling	oai:doaj.org-article:b30a7feb5859420aa592639eb79a190c2021-11-11T19:44:16ZUtilization of Industrial Byproducts for Enhancing the Properties of Cement Mortars at Elevated Temperatures10.3390/su1321121042071-1050https://doaj.org/article/b30a7feb5859420aa592639eb79a190c2021-11-01T00:00:00Zhttps://www.mdpi.com/2071-1050/13/21/12104https://doaj.org/toc/2071-1050The research on industrial byproducts, such as slags and fly ash, was intense during the last decades in the building sector. Apart from the environmental benefits coming from their exploitation, their application may lead to the production of cost effective and durable building materials, such as mortars and concrete. The impact of industrial byproducts on the resistance of materials to fire and elevated temperatures was assessed by many scientists, however, it is still an open field of research. In this study, locally available byproducts were investigated, including High Calcium Fly Ash (HCFA), coming from lignite-fired power plants, as well as Ladle Furnace Steel (LFS) slag and Electric Arc Furnace (EAF) slag aggregates, originating from the steel making industry. Six mortar compositions were manufactured with substitution of Ordinary Portland Cement (OPC) with HCFA and LFS slag (20% <i>w/w</i>) and of natural aggregates with EAF slag (50% <i>w/w</i>). At the age of 7, 28, and 90 days, the physico-mechanical properties of the specimens were recorded, while they were further exposed at elevated temperatures, concerning 200 °C, 400 °C, 600 °C, 800 °C, and 1000 °C. After each exposure, their physico-mechanical and microstructure characteristics were identified. From the evaluation of the results, it was asserted that HCFA and EAF slag aggregates enhanced the overall performance of mortars, especially up to 600 °C. LFS was beneficial only in combination with EAF slag aggregates.Vasiliki PachtaEleftherios K. AnastasiouMDPI AGarticleelevated temperaturesmortarsfly ashslagcementEnvironmental effects of industries and plantsTD194-195Renewable energy sourcesTJ807-830Environmental sciencesGE1-350ENSustainability, Vol 13, Iss 12104, p 12104 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	elevated temperatures mortars fly ash slag cement Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350
spellingShingle	elevated temperatures mortars fly ash slag cement Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 Vasiliki Pachta Eleftherios K. Anastasiou Utilization of Industrial Byproducts for Enhancing the Properties of Cement Mortars at Elevated Temperatures
description	The research on industrial byproducts, such as slags and fly ash, was intense during the last decades in the building sector. Apart from the environmental benefits coming from their exploitation, their application may lead to the production of cost effective and durable building materials, such as mortars and concrete. The impact of industrial byproducts on the resistance of materials to fire and elevated temperatures was assessed by many scientists, however, it is still an open field of research. In this study, locally available byproducts were investigated, including High Calcium Fly Ash (HCFA), coming from lignite-fired power plants, as well as Ladle Furnace Steel (LFS) slag and Electric Arc Furnace (EAF) slag aggregates, originating from the steel making industry. Six mortar compositions were manufactured with substitution of Ordinary Portland Cement (OPC) with HCFA and LFS slag (20% <i>w/w</i>) and of natural aggregates with EAF slag (50% <i>w/w</i>). At the age of 7, 28, and 90 days, the physico-mechanical properties of the specimens were recorded, while they were further exposed at elevated temperatures, concerning 200 °C, 400 °C, 600 °C, 800 °C, and 1000 °C. After each exposure, their physico-mechanical and microstructure characteristics were identified. From the evaluation of the results, it was asserted that HCFA and EAF slag aggregates enhanced the overall performance of mortars, especially up to 600 °C. LFS was beneficial only in combination with EAF slag aggregates.
format	article
author	Vasiliki Pachta Eleftherios K. Anastasiou
author_facet	Vasiliki Pachta Eleftherios K. Anastasiou
author_sort	Vasiliki Pachta
title	Utilization of Industrial Byproducts for Enhancing the Properties of Cement Mortars at Elevated Temperatures
title_short	Utilization of Industrial Byproducts for Enhancing the Properties of Cement Mortars at Elevated Temperatures
title_full	Utilization of Industrial Byproducts for Enhancing the Properties of Cement Mortars at Elevated Temperatures
title_fullStr	Utilization of Industrial Byproducts for Enhancing the Properties of Cement Mortars at Elevated Temperatures
title_full_unstemmed	Utilization of Industrial Byproducts for Enhancing the Properties of Cement Mortars at Elevated Temperatures
title_sort	utilization of industrial byproducts for enhancing the properties of cement mortars at elevated temperatures
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b30a7feb5859420aa592639eb79a190c
work_keys_str_mv	AT vasilikipachta utilizationofindustrialbyproductsforenhancingthepropertiesofcementmortarsatelevatedtemperatures AT eleftherioskanastasiou utilizationofindustrialbyproductsforenhancingthepropertiesofcementmortarsatelevatedtemperatures
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Utilization of Industrial Byproducts for Enhancing the Properties of Cement Mortars at Elevated Temperatures

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