JavaScript is disabled for your browser. Some features of this site may not work without it.

    Listar

    Todo RIUMAComunidades & ColeccionesPor fecha de publicaciónAutoresTítulosMateriasTipo de publicaciónCentrosDepartamentos/InstitutosEditoresEsta colecciónPor fecha de publicaciónAutoresTítulosMateriasTipo de publicaciónCentrosDepartamentos/InstitutosEditores

    Mi cuenta

    AccederRegistro

    Estadísticas

    Ver Estadísticas de uso

    DE INTERÉS

    Datos de investigaciónReglamento de ciencia abierta de la UMAPolítica de RIUMAPolitica de datos de investigación en RIUMAOpen Policy Finder (antes Sherpa-Romeo)Dulcinea
    Preguntas frecuentesManual de usoContacto/Sugerencias
    Ver ítem 
    •   RIUMA Principal
    • Investigación
    • Artículos
    • Ver ítem
    •   RIUMA Principal
    • Investigación
    • Artículos
    • Ver ítem

    On the early hydration of cubic ye’elimite: New insights from time-resolved in situ MAS NMR spectroscopy

    • Autor
      Paul, Geo; Cuesta-García, Ana María; Boccaleri, Enrico; Cassino, Claudio; Marchese, Leonardo
    • Fecha
      2022-12-02
    • Editorial/Editor
      Elsevier
    • Palabras clave
      Hidratación
    • Resumen
      Two polymorphs of ye’elimite are known to exist in calcium sulfoaluminate cements, namely, orthorhombic (iron free), C4A3$ and cubic/pseudo-cubic (iron incorporated), C4A3-xFx$ forms. The very early hydration behaviour of cubic ye’elimite (nominal composition: Ca3.8Na0.2Al5.6Fe0.2Si0.2O12SO4) has been investigated using a time-resolved in situ multi-nuclear (1H, 27Al, 23Na and 29Si) MAS NMR spectroscopic approach. The study shows that the reaction pathway and the intermediate species formed are substantially different from those that are observed during the hydration of orthorhombic ye’elimite, and the rate as well as the nature of hydration products are dictated by the presence or the absence of limestone (CaCO3). Furthermore, the detection of diverse transient species as well as the uncovering of different kinetic behaviour during the early hydration of cubic ye’elimite illustrate the advantages of time-resolved in situ MAS NMR experimental approach for fingerprinting hydrated phases.
    • URI
      https://hdl.handle.net/10630/25612
    • DOI
      https://dx.doi.org/10.1016/j.matlet.2022.133630
    • Compartir
      RefworksMendeley
    Mostrar el registro completo del ítem
    Ficheros
    Manuscript MLBLUE-D-22-03346 R2.pdf (948.4Kb)
    Colecciones
    • Artículos

    Estadísticas

    REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
    REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
     

     

    REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
    REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA