Setting behaviour of waste-based cements estimated by impedance spectroscopy and temperature measurements
This work describes the study of phase development during the setting of various clinker formulations prepared with industrial wastes or by-products, namely sludges (generated in the Al-anodising and surface coating industrial processes, in potable water filtration/cleaning operations and in the cut...
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| Format: | Article |
| Language: | English |
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Elsevier
2007-04-01
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| Series: | Boletín de la Sociedad Española de Cerámica y Vidrio |
| Subjects: | |
| Online Access: | http://ceramicayvidrio.revistas.csic.es/index.php/ceramicayvidrio/article/view/255/272 |
| _version_ | 1811265569184284672 |
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| author | Raupp-Pereira, F. Ribeiro, M. J. Segadães, A. M. Labrincha, J. A. |
| author_facet | Raupp-Pereira, F. Ribeiro, M. J. Segadães, A. M. Labrincha, J. A. |
| author_sort | Raupp-Pereira, F. |
| collection | DOAJ |
| description | This work describes the study of phase development during the setting of various clinker formulations prepared with industrial wastes or by-products, namely sludges (generated in the Al-anodising and surface coating industrial processes, in potable water filtration/cleaning operations and in the cutting process of natural marble) and foundry sand. For comparison, similar formulations were also prepared with commercial high purity grade raw materials and processed in identical conditions. To circumvent the experimental restrictions imposed by the use of Vicat’s needle (i.e. large amount of material), electrical resistivity measurements were conducted by alternate current (a.c.) impedance spectroscopy to follow the hydration process and setting behaviour. During setting, the temperature evolution of the water/cement pastes was also recorded. Impedande spectroscopy (IS) studies were found to be a reliable method and, in some systems, can be a more sensitive technique to detect on-going hydration reactions.<br><br>Este trabajo describe el estudio del desarrollo de fases durante el fraguado de diferentes formulaciones de clinker preparados con residuos industriales o subproductos, denominados barros (generados en los procesos de recubrimientos industriales por anodizado de Al, en procesos de filtración/depuración de agua potable y en procesos de corte de mármol) y arenas de fundición. Con el objeto de comparar, se prepararon formulaciones similares a partir de materias primas comerciales de alta pureza y procesadas en idénticas condiciones. Para sortear las restricciones experimentales de inherentes a la aguja de Vicat (esto es, grandes cantidades de material), se realizaron medidas de resistividad eléctrica en corriente alterna (a.c.) de espectroscopía de impedancia para seguir el proceso de hidratación y fraguado. Durante el fraguado, la evolución de la temperatura de las pastas de agua/cemento se registró. Los estudios de espectroscopía de impedancia mostraron ser un método fiable y en algunos casos, pueden emplearse como técnica sensible para detectar el inicio de las reacciones de hidratación. |
| first_indexed | 2024-04-12T20:25:58Z |
| format | Article |
| id | doaj.art-8185d6a4eddd48078e5b8c6d395e92d5 |
| institution | Directory Open Access Journal |
| issn | 0366-3175 |
| language | English |
| last_indexed | 2024-04-12T20:25:58Z |
| publishDate | 2007-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Boletín de la Sociedad Española de Cerámica y Vidrio |
| spelling | doaj.art-8185d6a4eddd48078e5b8c6d395e92d52022-12-22T03:17:52ZengElsevierBoletín de la Sociedad Española de Cerámica y Vidrio0366-31752007-04-014629196Setting behaviour of waste-based cements estimated by impedance spectroscopy and temperature measurementsRaupp-Pereira, F.Ribeiro, M. J.Segadães, A. M.Labrincha, J. A.This work describes the study of phase development during the setting of various clinker formulations prepared with industrial wastes or by-products, namely sludges (generated in the Al-anodising and surface coating industrial processes, in potable water filtration/cleaning operations and in the cutting process of natural marble) and foundry sand. For comparison, similar formulations were also prepared with commercial high purity grade raw materials and processed in identical conditions. To circumvent the experimental restrictions imposed by the use of Vicat’s needle (i.e. large amount of material), electrical resistivity measurements were conducted by alternate current (a.c.) impedance spectroscopy to follow the hydration process and setting behaviour. During setting, the temperature evolution of the water/cement pastes was also recorded. Impedande spectroscopy (IS) studies were found to be a reliable method and, in some systems, can be a more sensitive technique to detect on-going hydration reactions.<br><br>Este trabajo describe el estudio del desarrollo de fases durante el fraguado de diferentes formulaciones de clinker preparados con residuos industriales o subproductos, denominados barros (generados en los procesos de recubrimientos industriales por anodizado de Al, en procesos de filtración/depuración de agua potable y en procesos de corte de mármol) y arenas de fundición. Con el objeto de comparar, se prepararon formulaciones similares a partir de materias primas comerciales de alta pureza y procesadas en idénticas condiciones. Para sortear las restricciones experimentales de inherentes a la aguja de Vicat (esto es, grandes cantidades de material), se realizaron medidas de resistividad eléctrica en corriente alterna (a.c.) de espectroscopía de impedancia para seguir el proceso de hidratación y fraguado. Durante el fraguado, la evolución de la temperatura de las pastas de agua/cemento se registró. Los estudios de espectroscopía de impedancia mostraron ser un método fiable y en algunos casos, pueden emplearse como técnica sensible para detectar el inicio de las reacciones de hidratación.http://ceramicayvidrio.revistas.csic.es/index.php/ceramicayvidrio/article/view/255/272Wastescementsettingimpedance spectroscopyResiduoscementofraguadoespectroscopia de impedancia |
| spellingShingle | Raupp-Pereira, F. Ribeiro, M. J. Segadães, A. M. Labrincha, J. A. Setting behaviour of waste-based cements estimated by impedance spectroscopy and temperature measurements Boletín de la Sociedad Española de Cerámica y Vidrio Wastes cement setting impedance spectroscopy Residuos cemento fraguado espectroscopia de impedancia |
| title | Setting behaviour of waste-based cements estimated by impedance spectroscopy and temperature measurements |
| title_full | Setting behaviour of waste-based cements estimated by impedance spectroscopy and temperature measurements |
| title_fullStr | Setting behaviour of waste-based cements estimated by impedance spectroscopy and temperature measurements |
| title_full_unstemmed | Setting behaviour of waste-based cements estimated by impedance spectroscopy and temperature measurements |
| title_short | Setting behaviour of waste-based cements estimated by impedance spectroscopy and temperature measurements |
| title_sort | setting behaviour of waste based cements estimated by impedance spectroscopy and temperature measurements |
| topic | Wastes cement setting impedance spectroscopy Residuos cemento fraguado espectroscopia de impedancia |
| url | http://ceramicayvidrio.revistas.csic.es/index.php/ceramicayvidrio/article/view/255/272 |
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