Investigation of the possibility of the reutilization of some industrial wastes

The utilization of nitrogypsum and bottom ash, wastes from the factory “Milan Blagojevic” (Lucani–Serbia), was investigated. For this purpose, mixtures composed of calcined nitrogypsum (CaSO4·0.5H2O), ash (mass ratio 1:1) and water (water/solid mass ratio 0.5), as well as similar mixtures consistin...

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Main Authors: A. KOSTIC-PULEK, S. MARINKOVIC, S. POPOV, J. DJINOVIC
Format: Article
Language:English
Published: Serbian Chemical Society 2005-06-01
Series:Journal of the Serbian Chemical Society
Subjects:
Online Access:http://www.shd.org.yu/HtDocs/SHD/vol70/No6/JSCS_V70_No6-07.pdf
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author A. KOSTIC-PULEK
S. MARINKOVIC
S. POPOV
J. DJINOVIC
author_facet A. KOSTIC-PULEK
S. MARINKOVIC
S. POPOV
J. DJINOVIC
author_sort A. KOSTIC-PULEK
collection DOAJ
description The utilization of nitrogypsum and bottom ash, wastes from the factory “Milan Blagojevic” (Lucani–Serbia), was investigated. For this purpose, mixtures composed of calcined nitrogypsum (CaSO4·0.5H2O), ash (mass ratio 1:1) and water (water/solid mass ratio 0.5), as well as similar mixtures consisting of 1.0 mass%5.0 mass%10.0mass%of lime (CaO) with the same gypsum/ash andwater/solid mass ratios, were prepared.These mixtures gave solidified products at room temperature and atmospheric pressure, which after 28 days had satisfactory compressive strengths for application in the civil industry. The productwith 5.0 mass% of added lime has the best mechanical characeristics. X-ray and qualitative IR analysis showed that this product mainly consisted of calcium sulphate dihydrate (CaSO4·2H2O) and carbonates, as well as a small quantity of ettringite (3CaO·Al2O3·3CaSO4·32H2O).
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spelling doaj.art-7aac21338d6f45169e749ad95b9a10522022-12-22T01:35:35ZengSerbian Chemical SocietyJournal of the Serbian Chemical Society0352-51392005-06-01706843851Investigation of the possibility of the reutilization of some industrial wastesA. KOSTIC-PULEKS. MARINKOVICS. POPOVJ. DJINOVICThe utilization of nitrogypsum and bottom ash, wastes from the factory “Milan Blagojevic” (Lucani–Serbia), was investigated. For this purpose, mixtures composed of calcined nitrogypsum (CaSO4·0.5H2O), ash (mass ratio 1:1) and water (water/solid mass ratio 0.5), as well as similar mixtures consisting of 1.0 mass%5.0 mass%10.0mass%of lime (CaO) with the same gypsum/ash andwater/solid mass ratios, were prepared.These mixtures gave solidified products at room temperature and atmospheric pressure, which after 28 days had satisfactory compressive strengths for application in the civil industry. The productwith 5.0 mass% of added lime has the best mechanical characeristics. X-ray and qualitative IR analysis showed that this product mainly consisted of calcium sulphate dihydrate (CaSO4·2H2O) and carbonates, as well as a small quantity of ettringite (3CaO·Al2O3·3CaSO4·32H2O).http://www.shd.org.yu/HtDocs/SHD/vol70/No6/JSCS_V70_No6-07.pdffly ashnitrogypsumettringiteFaL-G binder
spellingShingle A. KOSTIC-PULEK
S. MARINKOVIC
S. POPOV
J. DJINOVIC
Investigation of the possibility of the reutilization of some industrial wastes
Journal of the Serbian Chemical Society
fly ash
nitrogypsum
ettringite
FaL-G binder
title Investigation of the possibility of the reutilization of some industrial wastes
title_full Investigation of the possibility of the reutilization of some industrial wastes
title_fullStr Investigation of the possibility of the reutilization of some industrial wastes
title_full_unstemmed Investigation of the possibility of the reutilization of some industrial wastes
title_short Investigation of the possibility of the reutilization of some industrial wastes
title_sort investigation of the possibility of the reutilization of some industrial wastes
topic fly ash
nitrogypsum
ettringite
FaL-G binder
url http://www.shd.org.yu/HtDocs/SHD/vol70/No6/JSCS_V70_No6-07.pdf
work_keys_str_mv AT akosticpulek investigationofthepossibilityofthereutilizationofsomeindustrialwastes
AT smarinkovic investigationofthepossibilityofthereutilizationofsomeindustrialwastes
AT spopov investigationofthepossibilityofthereutilizationofsomeindustrialwastes
AT jdjinovic investigationofthepossibilityofthereutilizationofsomeindustrialwastes