Study of the hydration of Portland cement pastes containing ceramic waste by thermal analysis

In this paper, the influence of the use of waste from the ceramic industry (calcined clay brick) on the hydration products of Portland cement pastes. The content of chemically bound water was determined using thermo-gravimetric analysis (TG) and differential thermal analysis (DTA). Five cement paste...

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Asıl Yazarlar:	Gonçalves, Jardel Pereira, Toledo Filho, Romildo Dias, Fairbairn, Eduardo de Moraes Rego
Materyal Türü:	Online
Dil:	por
Baskı/Yayın Bilgisi:	ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2008
Online Erişim:	https://seer.ufrgs.br/ambienteconstruido/article/view/3721
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id	ojs-article-3721
record_format	ojs
spelling	ojs-article-37212008-11-21T23:37:30Z Study of the hydration of Portland cement pastes containing ceramic waste by thermal analysis Estudo da hidratação de pastas de cimento Portland contendo resíduo cerâmico por meio de análise térmica Gonçalves, Jardel Pereira Toledo Filho, Romildo Dias Fairbairn, Eduardo de Moraes Rego Pastas; Resíduo cerâmico; Hidratação; Análise termogravimétrica In this paper, the influence of the use of waste from the ceramic industry (calcined clay brick) on the hydration products of Portland cement pastes. The content of chemically bound water was determined using thermo-gravimetric analysis (TG) and differential thermal analysis (DTA). Five cement pastes were used, including the reference paste and four cement pastes containing 10% to 40% of calcined clay brick as cement replacement, in mass. The water/cement ratio was kept constant and equal to 0.40. The TG and DTG curves were obtained from hydrated cement pastes after 28 days of curing at 21±1 oC. The results indicate a reduction in the content of water chemically combined due to calcium hydroxide with the increase of cement replacement by calcined clay brick. An increase in the content of chemically combined water was observed, corresponding to all hydration products for the cement paste containing 10% of calcined clay brick in the mixture. Neste trabalho, foi avaliada a influência da utilização do resíduos da indústria cerâmica (tijolo cerâmico calcinado) na quantidade de produtos hidratados em pastas de cimento Portland. O teor de água quimicamente combinada nos produtos hidratados presentes nas pastas foi avaliado através de análise termogravimétrica (TG) e termogravimétrica derivada (DTG). Foram produzidas cinco pastas, uma pasta de referência e quatro pastas contendo tijolo cerâmico calcinado em teores de substituição variando de 10% a 40% em relação à massa de cimento. A relação entre água e aglomerante permaneceu constante e igual a 0,40. As curvas TG e DTG foram obtidas em pastas hidratadas com 28 dias de cura aos 21±1 oC. Os resultados indicam que há redução do teor de água quimicamente combinada, relativo ao hidróxido de cálcio, com o aumento do teor de substituição de cimento por resíduo cerâmico, sendo 10% de substituição o teor que apresenta a maior quantidade de água quimicamente combinada. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2008-04-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://seer.ufrgs.br/ambienteconstruido/article/view/3721 Ambiente Construído; v. 6, n. 4 (2006); 83-94 Ambiente Construído; v. 6, n. 4 (2006); 83-94 Ambiente Construído; v. 6, n. 4 (2006); 83-94 1678-8621 1415-8876 por https://seer.ufrgs.br/ambienteconstruido/article/view/3721/2072 Direitos autorais 2016 Ambiente Construído https://creativecommons.org/licenses/by/4.0
institution	Universidade Federal do Rio Grande do Sul
collection	OJS
language	por
format	Online
author	Gonçalves, Jardel Pereira Toledo Filho, Romildo Dias Fairbairn, Eduardo de Moraes Rego
spellingShingle	Gonçalves, Jardel Pereira Toledo Filho, Romildo Dias Fairbairn, Eduardo de Moraes Rego Study of the hydration of Portland cement pastes containing ceramic waste by thermal analysis
author_facet	Gonçalves, Jardel Pereira Toledo Filho, Romildo Dias Fairbairn, Eduardo de Moraes Rego
author_sort	Gonçalves, Jardel Pereira
title	Study of the hydration of Portland cement pastes containing ceramic waste by thermal analysis
title_short	Study of the hydration of Portland cement pastes containing ceramic waste by thermal analysis
title_full	Study of the hydration of Portland cement pastes containing ceramic waste by thermal analysis
title_fullStr	Study of the hydration of Portland cement pastes containing ceramic waste by thermal analysis
title_full_unstemmed	Study of the hydration of Portland cement pastes containing ceramic waste by thermal analysis
title_sort	study of the hydration of portland cement pastes containing ceramic waste by thermal analysis
description	In this paper, the influence of the use of waste from the ceramic industry (calcined clay brick) on the hydration products of Portland cement pastes. The content of chemically bound water was determined using thermo-gravimetric analysis (TG) and differential thermal analysis (DTA). Five cement pastes were used, including the reference paste and four cement pastes containing 10% to 40% of calcined clay brick as cement replacement, in mass. The water/cement ratio was kept constant and equal to 0.40. The TG and DTG curves were obtained from hydrated cement pastes after 28 days of curing at 21±1 oC. The results indicate a reduction in the content of water chemically combined due to calcium hydroxide with the increase of cement replacement by calcined clay brick. An increase in the content of chemically combined water was observed, corresponding to all hydration products for the cement paste containing 10% of calcined clay brick in the mixture.
publisher	ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
publishDate	2008
url	https://seer.ufrgs.br/ambienteconstruido/article/view/3721
work_keys_str_mv	AT goncalvesjardelpereira studyofthehydrationofportlandcementpastescontainingceramicwastebythermalanalysis AT toledofilhoromildodias studyofthehydrationofportlandcementpastescontainingceramicwastebythermalanalysis AT fairbairneduardodemoraesrego studyofthehydrationofportlandcementpastescontainingceramicwastebythermalanalysis AT goncalvesjardelpereira estudodahidratacaodepastasdecimentoportlandcontendoresiduoceramicopormeiodeanalisetermica AT toledofilhoromildodias estudodahidratacaodepastasdecimentoportlandcontendoresiduoceramicopormeiodeanalisetermica AT fairbairneduardodemoraesrego estudodahidratacaodepastasdecimentoportlandcontendoresiduoceramicopormeiodeanalisetermica
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Study of the hydration of Portland cement pastes containing ceramic waste by thermal analysis

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