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Thermal properties of spray-coated geopolymer-type compositions

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Abstract

Thermal properties (DTA-TG and thermal expansion) of spray-coated fly ash-based geopolymer have been studied. The geopolymer composition selected for thermal spray coating had Si:Al = 3.3 and Na:Al = 1.45. To improve the fire resistant characteristics, fine- and coarse-milled vermiculite powder was added at 10 mass percent. Water:geopolymer ratios varied from 0.35 to 0.41 depending on vermiculite content and method of coating. Water added into a starting mixture to increase the flow ability also decreased the geopolymerisation reaction.

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Acknowledgements

The authors wish to thank the Perlite and Vermiculite Factory Pty. (Perth, WA) for donating the vermiculite samples.

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Authors and Affiliations

  1. Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences, Ulaanbaatar 51, Mongolia

    J. Temuujin & A. Minjigmaa

  2. Department of Imaging and Applied Physics, Curtin University, GPO Box U1987, Perth, WA, 6845, Australia

    W. Rickard & A. van Riessen

Authors
  1. J. Temuujin
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  2. A. Minjigmaa
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  3. W. Rickard
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  4. A. van Riessen
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Correspondence to J. Temuujin.

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Temuujin, J., Minjigmaa, A., Rickard, W. et al. Thermal properties of spray-coated geopolymer-type compositions. J Therm Anal Calorim 107, 287–292 (2012). https://doi.org/10.1007/s10973-011-1766-4

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  • DOI: https://doi.org/10.1007/s10973-011-1766-4

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