Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/53307
Título : Neutron diffraction for studying the influence of the relative humidity on the carbonation process of cement pastes
Autor : Galán, I., Andrade, C., Castellote, M., Rebolledo, Nuria, Sánchez, Javier, Puente-Orench, I., Campo, Javier, Fabelo, Oscar
Fecha de publicación : 2011
Editor: Institute of Physics Publishing
Citación : Journal of Physics: Conference Series 325(1): 012015 (2011)
Resumen: The effect of humidity on hydrated cement carbonation has been studied by means of in-situ neutron diffraction measurements. The evolution of the main crystalline phases in the bulk of the sample, portlandite and calcite, has been monitored during the process. Data obtained from neutron diffraction allow the quantification of the phases involved. The results highlight the great influence of humidity on carbonation. At very low humidity there are almost no changes. Between 53 and 75% relative humidity, portlandite decrease and calcite increase data can be fitted to exponential decay functions. At very high humidity portlandite remains nearly constant while calcite increases slightly with time, almost linearly.
URI : http://hdl.handle.net/10261/53307
Identificadores: doi: 10.1088/1742-6596/325/1/012015
issn: 1742-6588
e-issn: 1742-6596
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