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Título

Accelerated carbonation of cement pastes in situ monitored by neutron diffraction

AutorCastellote, Marta CSIC ORCID; Andrade Perdrix, Carmen CSIC ORCID ; Turrillas, Xabier M. CSIC ORCID ; Campo, Javier CSIC ORCID ; Cuello, G. J.
Palabras claveAccelerated carbonation
In situ monitoring
Neutron diffraction
Phase analysis
Microstructure changes
Fecha de publicación31-ago-2008
EditorElsevier
CitaciónCement and Concrete Research 38(12): 1365-1373 (2008)
ResumenIn-situ monitoring of the changes that take place in the phase composition of cement pastes during accelerated carbonation (100% CO2) for different binders, has been carried out, by taking Neutron Diffraction patterns in parallel with the carbonation experiments. The variation of the intensity of chosen reflections for each phase along the experiment has been used to monitor concentration changes and has supplied data, in real time, for fractional conversion of different phases (Portlandite, Ettringite and CSH gel) of the hydrated cement pastes. Fitting of these results has allowed to make a qualitative approach to the kinetics of the carbonation of the different phases and extracting conclusions on the microstructural changes that takes place during the carbonation of cement pastes.
DescripciónPublicación versión impresa: diciembre de 2008
Versión del editorhttp://dx.doi.org/10.1016/j.cemconres.2008.07.002
URIhttp://hdl.handle.net/10261/19925
DOI10.1016/j.cemconres.2008.07.002
ISSN0008-8846
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