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Journal of Materials Science

, Volume 42, Issue 11, pp 3990–3993 | Cite as

Geopolymer synthesis using silica fume and sodium aluminate

  • D. R. M. BrewEmail author
  • K. J. D. MacKenzie
Article

Abstract

Monoliths that set rapidly and harden at ambient temperature have been prepared by exploiting sol–gel type condensation reactions between sodium silicate, formed in-situ by alkaline dissolution of silica fume, and a solution of sodium aluminate. Structural characterisation of the product was carried out by XRD, 27Al and 29Si MAS NMR spectroscopy) and the samples showed reproducibly good compressive strengths, indicating that the products display all the characteristics of typical aluminosilicate geopolymers.

Keywords

Compressive Strength Geopolymer Silica Fume Gibbsite Sodium Aluminate 

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.New Zealand Institute for Research and DevelopmentLower HuttNew Zealand
  2. 2.School of Chemical and Physical SciencesVictoria University of WellingtonWellingtonNew Zealand
  3. 3.New Zealand Institute for Industrial Research and DevelopmentLower HuttNew Zealand

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