Use of fly ash and phosphogypsum for the synthesis of belite-sulfoaluminate clinker

Fly ash and phosphogypsum were used as Naturally Occurring Radioactive Materials (NORM) by-products for the synthesis of belite-sulfoaluminate clinkers. The influence of raw mixture composition and firing temperature was investigated. Clinkers and cements were examined by X-ray powder diffraction an...

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Main Authors:	S. Kramar, L. Žibret, E. Fidanchevska, V. Jovanov, B. Angjusheva, V. Ducman
Format:	Article
Language:	English
Published:	Consejo Superior de Investigaciones Científicas 2019-03-01
Series:	Materiales de Construccion
Subjects:	clinker microstructure fly ash gypsum calcium sulphoaluminate
Online Access:	http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2242

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spelling	doaj-64048ab1297e413ab0677444bb8addfc2021-05-05T07:36:25ZengConsejo Superior de Investigaciones CientíficasMateriales de Construccion0465-27461988-32262019-03-0169333e176e17610.3989/mc.2019.116172167Use of fly ash and phosphogypsum for the synthesis of belite-sulfoaluminate clinkerS. Kramar0https://orcid.org/0000-0003-0483-9623L. Žibret1https://orcid.org/0000-0002-0132-0896E. Fidanchevska2https://orcid.org/0000-0003-2919-5916V. Jovanov3https://orcid.org/0000-0001-7734-0757B. Angjusheva4https://orcid.org/0000-0001-6661-1777V. Ducman5https://orcid.org/0000-0002-6430-3305Slovenian National Building and Civil Engineering InstituteSlovenian National Building and Civil Engineering InstituteSlovenian National Building and Civil Engineering InstituteSs. Cyril and Methodius University in Skopje, Faculty of Technology and MetallurgySs. Cyril and Methodius University in Skopje, Faculty of Technology and MetallurgySlovenian National Building and Civil Engineering InstituteFly ash and phosphogypsum were used as Naturally Occurring Radioactive Materials (NORM) by-products for the synthesis of belite-sulfoaluminate clinkers. The influence of raw mixture composition and firing temperature was investigated. Clinkers and cements were examined by X-ray powder diffraction and scanning electron microscopy with energy dispersive X-ray spectroscopy. The compressive strength of the cements was determined after 28 days. Clinker phases identified included ye’elimite, ß-phase of belite, ternesite and gehlenite, while the main hydration product of the cement pastes was ettringite. The results showed that belite-sulfoaluminate cements can be fabricated with a compressive strength of 45.9 N/mm2 by firing the raw mixture (70 wt.% marl, 10 wt.% bauxite and 20 wt.% phosphogypsum) at a temperature of 1320°C/1h.http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2242clinkermicrostructurefly ashgypsumcalcium sulphoaluminate
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	S. Kramar L. Žibret E. Fidanchevska V. Jovanov B. Angjusheva V. Ducman
spellingShingle	S. Kramar L. Žibret E. Fidanchevska V. Jovanov B. Angjusheva V. Ducman Use of fly ash and phosphogypsum for the synthesis of belite-sulfoaluminate clinker Materiales de Construccion clinker microstructure fly ash gypsum calcium sulphoaluminate
author_facet	S. Kramar L. Žibret E. Fidanchevska V. Jovanov B. Angjusheva V. Ducman
author_sort	S. Kramar
title	Use of fly ash and phosphogypsum for the synthesis of belite-sulfoaluminate clinker
title_short	Use of fly ash and phosphogypsum for the synthesis of belite-sulfoaluminate clinker
title_full	Use of fly ash and phosphogypsum for the synthesis of belite-sulfoaluminate clinker
title_fullStr	Use of fly ash and phosphogypsum for the synthesis of belite-sulfoaluminate clinker
title_full_unstemmed	Use of fly ash and phosphogypsum for the synthesis of belite-sulfoaluminate clinker
title_sort	use of fly ash and phosphogypsum for the synthesis of belite-sulfoaluminate clinker
publisher	Consejo Superior de Investigaciones Científicas
series	Materiales de Construccion
issn	0465-2746 1988-3226
publishDate	2019-03-01
description	Fly ash and phosphogypsum were used as Naturally Occurring Radioactive Materials (NORM) by-products for the synthesis of belite-sulfoaluminate clinkers. The influence of raw mixture composition and firing temperature was investigated. Clinkers and cements were examined by X-ray powder diffraction and scanning electron microscopy with energy dispersive X-ray spectroscopy. The compressive strength of the cements was determined after 28 days. Clinker phases identified included ye’elimite, ß-phase of belite, ternesite and gehlenite, while the main hydration product of the cement pastes was ettringite. The results showed that belite-sulfoaluminate cements can be fabricated with a compressive strength of 45.9 N/mm2 by firing the raw mixture (70 wt.% marl, 10 wt.% bauxite and 20 wt.% phosphogypsum) at a temperature of 1320°C/1h.
topic	clinker microstructure fly ash gypsum calcium sulphoaluminate
url	http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2242
work_keys_str_mv	AT skramar useofflyashandphosphogypsumforthesynthesisofbelitesulfoaluminateclinker AT lzibret useofflyashandphosphogypsumforthesynthesisofbelitesulfoaluminateclinker AT efidanchevska useofflyashandphosphogypsumforthesynthesisofbelitesulfoaluminateclinker AT vjovanov useofflyashandphosphogypsumforthesynthesisofbelitesulfoaluminateclinker AT bangjusheva useofflyashandphosphogypsumforthesynthesisofbelitesulfoaluminateclinker AT vducman useofflyashandphosphogypsumforthesynthesisofbelitesulfoaluminateclinker
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Use of fly ash and phosphogypsum for the synthesis of belite-sulfoaluminate clinker

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