English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/94384
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Influence of metakaolin purities on potassium geopolymer formulation: The existence of several networks

AuthorsSobrados, Isabel ; Sanz Lázaro, Jesús; Rossignol, S.
Formation mechanisms
Issue Date20-Jul-2013
CitationJournal of Colloid and Interface Science 408: 43-53 (2013)
AbstractGeopolymer materials are obtained by the alkaline activation of aluminosilicate sources, the best of which is metakaolin. However, every raw material is different, and very few comparative studies have been done on different metakaolin sources. The aim of this work is to develop methods for the prediction of the working properties of geopolymer materials based on the reactivity of the metakaolin employed. Infrared spectroscopy showed direct relationships between the wettability, the Si/Al ratio and the kinetics of conversion of Si-O-Si bonds to Si-O-Al bonds. Moreover, it was demonstrated that the presence of impurities and the reactivity of the metakaolin can generate the formation of one or several networks. Finally, a descriptive model of the mechanism of geopolymer formation was proposed that takes into account the quality of metakaolin used. © 2013 Elsevier Inc.
Publisher version (URL)http://dx.doi.org/10.1016/j.jcis.2013.07.024
Identifiersdoi: 10.1016/j.jcis.2013.07.024
issn: 0021-9797
e-issn: 1095-7103
Appears in Collections:(ICMM) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.