Effect of Selected Alternative Fuels and Raw Materials on the Cement Clinker Quality

The article deals with the study of the effects of alternative fuels and raw materials on the cement clinker quality. The clinker quality was expressed by the content of two principal minerals alite C3S and belite C2S. The additions of alternative fuels ashes and raw materials, in principle, always...

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Main Author: Strigáč Július
Format: Article
Language:English
Published: Sciendo 2015-11-01
Series:Selected Scientific Papers: Journal of Civil Engineering
Subjects:
Online Access:https://doi.org/10.2478/sspjce-2015-0020
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author Strigáč Július
author_facet Strigáč Július
author_sort Strigáč Július
collection DOAJ
description The article deals with the study of the effects of alternative fuels and raw materials on the cement clinker quality. The clinker quality was expressed by the content of two principal minerals alite C3S and belite C2S. The additions of alternative fuels ashes and raw materials, in principle, always increased the belite content and conversely reduced the amount of alite. The alternative fuels with high ash content were used such as the meat-bone meal, sewage sludge from sewage treatment plants and paper sludge and the used alternative raw materials were metallurgical slags - granulated blastfurnace slag, air cooled blastfurnace slag and demetallized steel slag, fluidized bed combustion fly ash and waste glass. Meat-bone meal, sewage sludge from sewage treatment plants and paper sludge were evaluated as moderately suitable alternative fuels which can be added in the amounts of 2.8 wt. % addition of meat-bone meals ash, 3.64 wt. % addition of sewage sludge ash and 3.8 wt. % addition of paper sludge ash to the cement raw mixture. Demetallised steel slag is suitable for production of special sulphate resistant cement clinker for CEM I –SR cement with addition up to 5 wt. %. Granulated blastfurnace slag is a suitable alternative raw material with addition 4 wt. %. Air cooled blastfurnace slag is a suitable alternative raw material with addition 4.2 wt. %. Waste glass is not very appropriate alternative raw material with addition only 1.16 wt. %. Fluidized bed combustion fly ash appears not to be equally appropriate alternative raw material for cement clinker burning with less potential utilization in the cement industry and with addition 3.41 wt. %, which forms undesired anhydrite CaSO4 in the cement clinker.
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spelling doaj.art-359540c7d8a3465ca3bde07ddfb9c2192022-12-21T18:29:36ZengSciendoSelected Scientific Papers: Journal of Civil Engineering1338-72782015-11-01102819210.2478/sspjce-2015-0020sspjce-2015-0020Effect of Selected Alternative Fuels and Raw Materials on the Cement Clinker QualityStrigáč Július0Považská cementáreň a.s. LadceThe article deals with the study of the effects of alternative fuels and raw materials on the cement clinker quality. The clinker quality was expressed by the content of two principal minerals alite C3S and belite C2S. The additions of alternative fuels ashes and raw materials, in principle, always increased the belite content and conversely reduced the amount of alite. The alternative fuels with high ash content were used such as the meat-bone meal, sewage sludge from sewage treatment plants and paper sludge and the used alternative raw materials were metallurgical slags - granulated blastfurnace slag, air cooled blastfurnace slag and demetallized steel slag, fluidized bed combustion fly ash and waste glass. Meat-bone meal, sewage sludge from sewage treatment plants and paper sludge were evaluated as moderately suitable alternative fuels which can be added in the amounts of 2.8 wt. % addition of meat-bone meals ash, 3.64 wt. % addition of sewage sludge ash and 3.8 wt. % addition of paper sludge ash to the cement raw mixture. Demetallised steel slag is suitable for production of special sulphate resistant cement clinker for CEM I –SR cement with addition up to 5 wt. %. Granulated blastfurnace slag is a suitable alternative raw material with addition 4 wt. %. Air cooled blastfurnace slag is a suitable alternative raw material with addition 4.2 wt. %. Waste glass is not very appropriate alternative raw material with addition only 1.16 wt. %. Fluidized bed combustion fly ash appears not to be equally appropriate alternative raw material for cement clinker burning with less potential utilization in the cement industry and with addition 3.41 wt. %, which forms undesired anhydrite CaSO4 in the cement clinker.https://doi.org/10.2478/sspjce-2015-0020alternative fuelsalternative raw materialsclinker quality
spellingShingle Strigáč Július
Effect of Selected Alternative Fuels and Raw Materials on the Cement Clinker Quality
Selected Scientific Papers: Journal of Civil Engineering
alternative fuels
alternative raw materials
clinker quality
title Effect of Selected Alternative Fuels and Raw Materials on the Cement Clinker Quality
title_full Effect of Selected Alternative Fuels and Raw Materials on the Cement Clinker Quality
title_fullStr Effect of Selected Alternative Fuels and Raw Materials on the Cement Clinker Quality
title_full_unstemmed Effect of Selected Alternative Fuels and Raw Materials on the Cement Clinker Quality
title_short Effect of Selected Alternative Fuels and Raw Materials on the Cement Clinker Quality
title_sort effect of selected alternative fuels and raw materials on the cement clinker quality
topic alternative fuels
alternative raw materials
clinker quality
url https://doi.org/10.2478/sspjce-2015-0020
work_keys_str_mv AT strigacjulius effectofselectedalternativefuelsandrawmaterialsonthecementclinkerquality