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Hydration of calcium aluminates and calcium sulfoaluminate studied by Raman spectroscopy

Autor
Torrens, D.; Fernandez-Carrasco, L.; Martinez, S.
Tipus d'activitat
Article en revista
Revista
Cement and concrete research
Data de publicació
2013-05-01
Volum
47
Pàgina inicial
43
Pàgina final
50
DOI
https://doi.org/10.1016/j.cemconres.2013.01.015 Obrir en finestra nova
Repositori
http://hdl.handle.net/2117/14134 Obrir en finestra nova
Resum
The main hydration reaction product in the ternary system fly ash, calcium sulphate and calcium aluminate cement (40/20/40) at 20°C is a hydrated calcium sulfoaluminate compound, an AFt phase slightly different from “traditional ettringite”. The carbonation of ettringite develops gypsum but in this case rapidcreekite is formed. For the first time it has been observed that carbonation of the mentioned calcium sulfoaluminate compound (AFt), an hydrated calcium sulphate carbonated phase (Ca2(S...
Citació
Martínez-Ramírez, S.; Fernández, L. Carbonation on ternary cement systems. "Construction and building materials", 01 Maig 2012, vol. 27, p. 313-318.
Paraules clau
Aluminum compounds, Calcium, Calcium compounds, Cements, Chemical analysis, Fourier transform infrared spectroscopy, Functional groups, Hydration, Raman spectroscopy
Grup de recerca
LiTA - Laboratori d'Innovació i Tecnologia en l'Arquitectura

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