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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/53307
Title: Neutron diffraction for studying the influence of the relative humidity on the carbonation process of cement pastes
Authors: Galán, I.; Andrade, C.; Castellote, M.; Rebolledo, Nuria; Sánchez, Javier; Puente-Orench, I.; Campo, Javier; Fabelo, Oscar
Issue Date: 2011
Publisher: Institute of Physics Publishing
Citation: Journal of Physics: Conference Series 325(1): 012015 (2011)
Abstract: 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
Identifiers: doi: 10.1088/1742-6596/325/1/012015
issn: 1742-6588
e-issn: 1742-6596
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