Carregant...
Carregant...

Vés al contingut (premeu Retorn)

In-situ reaction of the very early hydration of C3A-gypsum-sucrose system by Micro-Raman spectroscopy

Autor
Martínez Ramírez, Sagrario; Gutierrez, R.; Husillos, N.; Fernandez-Carrasco, L.
Tipus d'activitat
Article en revista
Revista
Cement & concrete composites
Data de publicació
2016-10
Volum
73
Pàgina inicial
251
Pàgina final
256
DOI
https://doi.org/10.1016/j.cemconcomp.2016.07.020 Obrir en finestra nova
URL
http://www.sciencedirect.com/science/article/pii/S0958946516304176 Obrir en finestra nova
Resum
This paper studied in situ, by Micro-Raman spectroscopy, the very early hydration of C3A in the presence and absence of sulphates and with sucrose as an additive. For C3A hydration in the absence of gypsum, when carbonation is not avoided, carbonate-AFm phases are formed, but in the presence of gypsum, hydroxi-AFm are the main phases. Ettringite is the AFm stable phase developed initially at 70 min of hydration with gypsum and no monosulphate is formed. In the presence of sucrose, this salt, ins...
Paraules clau
Admixture, Ca3Al2O6, ESEM/EDS, Hydration, Micro-Raman, Sucrose
Grup de recerca
LiTA - Laboratori d'Innovació i Tecnologia en l'Arquitectura

Participants

  • Martínez Ramírez, Sagrario  (autor)
  • Gutierrez Contreras, Rocio  (autor)
  • Husillos Rodriguez, Núria  (autor)
  • Fernández Carrasco, Lucía  (autor)