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Título

Durability of alkali-activated fly ash cementitious materials

AutorFernández-Jiménez, Ana; García-Lodeiro, Inés; Palomo, Ángel
Fecha de publicaciónmay-2007
EditorSpringer
CitaciónJournal of Materials Science 42(9): 3055-3065 (2007)
ResumenThe study described in the present paper addresses the durability of alkali-activated fly ash (AAFA) cement under different conditions: specifically, cement performance is measured in a number of aggressive environments (deionized water, ASTM seawater, sodium sulphate and acidic solutions) and with respect to alkali–silica reaction-induced expansion. The chief parameters studied are: weight loss, compressive strength, variations in volume, presence of the products of degradation and microstructural changes. The results show that AAFA pastes perform satisfactorily in aggressive environments and that degradation in these materials is distinctly different from such processes in OPC paste. These mortars are also compliant with the 16-day expansion limit stipulated in ASTM standard C1260-94 on potential alkali–silica reactivity.
DescripciónPublicación versión online: 14 de diciembre de 2006
Versión del editorhttp://dx.doi.org/10.1007/s10853-006-0584-8
URIhttp://hdl.handle.net/10261/19995
DOI10.1007/s10853-006-0584-8
ISSN0022-2461 (Print)
1573-4803 (Online)
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