Carbonatacion de pastas de cemento de aluminato de calcio
[EN] This work discusses the results from accelerated tests intended to investigate the ways the different curing methods affect the carbonation of calcium alumínate cements pastes (CAC). The research was focused on the mineralogical composition of hydrated and carbonated samples. The compressive st...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2001 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/35056 |
| Acceso en línea: | http://hdl.handle.net/10261/35056 |
| Access Level: | acceso abierto |
| Palabra clave: | Carbonatacion de pastas aluminato de calcio |
| Sumario: | [EN] This work discusses the results from accelerated tests intended to investigate the ways the different curing methods affect the carbonation of calcium alumínate cements pastes (CAC). The research was focused on the mineralogical composition of hydrated and carbonated samples. The compressive strengths and the porosity of the samples have been determined. Results point out that vaterite and aragonite are formed as a result of carbonation of both cubic and hexagonal calcium alumínate hydrates. The polymorph of calcium carbonate formed does not depend on the curing process. Carbonation rates is higher in hexagonal than in cubic hydrates. Results obtained through this study evidence that, as a consequence of the carbonation process of CAC pastes, in test conditions, an increase of the mechanical strengths occurs. |
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