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Title

Obtención de cementos belíticos de sulfoaluminatos a partir de residuos industriales

Other TitlesObtaining a sulfoaluminate belite cement by industrial waste
AuthorsElkhadiri, I.; Diouri, A.; Boukhari, A.; Puertas, Francisca; Vázquez, T.
KeywordsClínkeres belíticos de sulfoaluminatos
Cenizas volantes
Fosfoyeso
Hidratación
Sulfoaluminate belite clinkers
Fly ash
Phosphogypsum
Hydratation
Issue Date30-Jun-2003
PublisherConsejo Superior de Investigaciones Científicas (España)
CitationMateriales de Construcción 53(270): 57-70 (2003)
Abstract[ES] Los clínkeres belíticos de sulfoaluminatos se obtienen por cocción de crudos a temperaturas moderadas, hacia 1.250 ºC. Esos crudos se componen de carbonato de calcio mezclados con dos subproductos industriales: cenizas volantes pobres en óxido de calcio y fosfoyeso. Los clínkeres obtenidos se caracterizaron a través de Difracción de Rayos X (DRX), Espectroscopia Infrarroja por Transformada de Fourier (FTIR) y por la determinación de CaO libre. El comportamiento hidráulico de los cementos elaborados de los clínkeres con el 7% de yeso se estudió por DRX, Microscopía Electrónica de Barrido (SEM), FTIR y Resonancia Magnética Nuclear (RMN).
[EN] Sulfoaluminate belite clinkers by burning raw at moderate temperatures near 1250 °C were synthesized. The used mixtures were made by calcium carbonate blended to two industrial wastes: low calcium fly ash and phosphogypsum. The clinkers were characterised by X-Ray Diffraction (XRD), Infrared Spectroscopy (FTIR) and free lime. The hydraulic behaviour of the obtained cements, by adequate clinkers with 7% of added gypsum, was followed by XRD, scaning electronic microscopy (SEM), FTIR and NMR.
Description14 páginas, 6 figuras, 6 tablas.
Publisher version (URL)http://dx.doi.org/10.3989/mc.2003.v53.i270.278
URIhttp://hdl.handle.net/10261/25906
DOI10.3989/mc.2003.v53.i270.278
ISSN0465-2746
E-ISSN1988-3226
Appears in Collections:(IETCC) Artículos

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