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Título

Alkali-activated fly ash: Effect of thermal curing conditions on mechanical and microstructural development – Part II

AutorKovalchuk, G.; Fernández-Jiménez, Ana; Palomo, Ángel
Palabras claveAlkaline cements
Alkaline activation
Curing conditions
Fecha de publicaciónfeb-2007
EditorElsevier
CitaciónFuel 86(3): 315-322 (2007)
ResumenThe development of mechanical strength and the mineral and microstructural characteristics of the alkali activated fly ash (AAFA), reveal the importance of the role played by the curing conditions prevailing during setting and hardening process: curing in a covered mould (CCM) at 95 C; dry curing (DC) at 150 C, or steam curing (ST) at 95 C. CCM yields the highest compressive strength (up to 102 MPa after 8 h of curing) and can be readily used in any AAFA system. DC is only recommended for NaOH-based systems (low SiO2/Al2O3 ratio), since waterglass-based mixes tend to retard reaction kinetics. SC, in turn, has an intermediate effect on strength development, between CCM and DC.
DescripciónPublicación en versión online: 17 de agosto de 2006
Versión del editorhttp://dx.doi.org/10.1016/j.fuel.2006.07.010
URIhttp://hdl.handle.net/10261/20149
DOI10.1016/j.fuel.2006.07.010
ISSN0016-2361
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