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Geopolymer synthesis using silica fume and sodium aluminate

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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.

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Authors and Affiliations

  1. New Zealand Institute for Research and Development, PO Box 31-310, Lower Hutt, New Zealand

    D. R. M. Brew

  2. School of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand

    K. J. D. MacKenzie

  3. New Zealand Institute for Industrial Research and Development, P.O. Box 31-310, Lower Hutt, New Zealand

    K. J. D. MacKenzie

Authors
  1. D. R. M. Brew
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  2. K. J. D. MacKenzie
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Correspondence to D. R. M. Brew.

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Brew, D.R.M., MacKenzie, K.J.D. Geopolymer synthesis using silica fume and sodium aluminate. J Mater Sci 42, 3990–3993 (2007). https://doi.org/10.1007/s10853-006-0376-1

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  • DOI: https://doi.org/10.1007/s10853-006-0376-1

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