Use of industrial wastes for the synthesis of belite clinker

The synthesis of belite clinker was studied using industrial wastes: paper sludge, cement kiln dust and rice husk ashes, as substitutes for natural raw materials. Wastes were characterized by XRF, XRD and TG analysis. Different formulations were prepared to produce clinker at 1300, 1350 and 1400 °C....

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Main Authors: M. K. Enríquez, J. I. Tobón, J. H. Ramírez
Format: Article
Language:English
Published: Consejo Superior de Investigaciones Científicas 2020-09-01
Series:Materiales de Construccion
Subjects:
Online Access:http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2290
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author M. K. Enríquez
J. I. Tobón
J. H. Ramírez
author_facet M. K. Enríquez
J. I. Tobón
J. H. Ramírez
author_sort M. K. Enríquez
collection DOAJ
description The synthesis of belite clinker was studied using industrial wastes: paper sludge, cement kiln dust and rice husk ashes, as substitutes for natural raw materials. Wastes were characterized by XRF, XRD and TG analysis. Different formulations were prepared to produce clinker at 1300, 1350 and 1400 °C. The clinker obtained was characterized using optical microscopy, XRD and f-CaO content determined by ethylene glycol method. Finally, the hydration of prepared cements with the clinkers was evaluated by isothermal microcalo­rimetry. It was found that by mixing paper sludge, cement kiln dust and rice husk ashes, it is possible to obtain belite clinker with f-CaO content below 0.5%, in clinkering temperatures between 1350 °C and 1400 °C without the use of natural raw materials. It was found that these cements have a high hydration kinetic, far above the rate of Ordinary Portland Cement, due mainly by the amorphous phase content in clinkers obtained.
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spelling doaj.art-afafaeb91c944434a4a1eb152d635a882022-12-21T18:50:44ZengConsejo Superior de Investigaciones CientíficasMateriales de Construccion0465-27461988-32262020-09-0170339e226e22610.3989/mc.2020.142192214Use of industrial wastes for the synthesis of belite clinkerM. K. Enríquez0https://orcid.org/0000-0002-1697-0998J. I. Tobón1https://orcid.org/0000-0002-1451-1309J. H. Ramírez2https://orcid.org/0000-0003-1766-1174Materials Catalysis & Environmental Group, Department of Chemical and Environmental Engineering, Universidad Nacional de Colombia,Cement and Building Materials Research Group, Departamento de Materiales y Minerales, Facultad de Minas, Universidad Nacional de ColombiaMaterials Catalysis & Environmental Group, Department of Chemical and Environmental Engineering, Universidad Nacional de ColombiaThe synthesis of belite clinker was studied using industrial wastes: paper sludge, cement kiln dust and rice husk ashes, as substitutes for natural raw materials. Wastes were characterized by XRF, XRD and TG analysis. Different formulations were prepared to produce clinker at 1300, 1350 and 1400 °C. The clinker obtained was characterized using optical microscopy, XRD and f-CaO content determined by ethylene glycol method. Finally, the hydration of prepared cements with the clinkers was evaluated by isothermal microcalo­rimetry. It was found that by mixing paper sludge, cement kiln dust and rice husk ashes, it is possible to obtain belite clinker with f-CaO content below 0.5%, in clinkering temperatures between 1350 °C and 1400 °C without the use of natural raw materials. It was found that these cements have a high hydration kinetic, far above the rate of Ordinary Portland Cement, due mainly by the amorphous phase content in clinkers obtained.http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2290clinkeringbelite cementbelite reactivityindustrial wastecement hydration
spellingShingle M. K. Enríquez
J. I. Tobón
J. H. Ramírez
Use of industrial wastes for the synthesis of belite clinker
Materiales de Construccion
clinkering
belite cement
belite reactivity
industrial waste
cement hydration
title Use of industrial wastes for the synthesis of belite clinker
title_full Use of industrial wastes for the synthesis of belite clinker
title_fullStr Use of industrial wastes for the synthesis of belite clinker
title_full_unstemmed Use of industrial wastes for the synthesis of belite clinker
title_short Use of industrial wastes for the synthesis of belite clinker
title_sort use of industrial wastes for the synthesis of belite clinker
topic clinkering
belite cement
belite reactivity
industrial waste
cement hydration
url http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2290
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