Early and late hydration of supersulphated cements of blast furnace slag with fluorgypsum

Autor:	M. E. Bazaldúa-Medellín, A. F. Fuentes, A. Gorokhovsky, J. I. Escalante-García
Jazyk:	English<br />Spanish; Castilian
Rok vydání:	2015
Předmět:	supersulphated c-s-h ettringite hydration microstructures Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Materiales de Construccion, Vol 65, Iss 317, Pp e043-e043 (2015)
Druh dokumentu:	article
ISSN:	0465-2746 1988-3226
DOI:	10.3989/mc.2015.06013
Popis:	The hydration, strength development and composition of hydration products of supersulphated cements were characterized from the first 48 hours up to 360 days. Two compositions of 80% Blast furnace slag, 10–15% Fluorgypsum and 10–5% Portland cement were cured in dry and wet conditions. The main hydration products were ettringite and C-S-H since the first hours and up to 360 days as evidenced by X-ray diffraction, thermal analysis and electron microscopy. The strength was favored by higher fluorgypsum contents and lower Portland cement contents. These cements generated heats of hydration of 40–57 KJ/Kg after 28 hours, which are lower than portland cement.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/7ccff036c5604968b155d18d11e66fb2 Zobrazit plný text záznamu View record in DOAJ