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Thermo-mechanical and microstructural characterisation of sodium-poly(sialate-siloxo) (Na-PSS) geopolymers

  • Advances in Geopolymer Science & Technology
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Abstract

The thermo-mechanical and microstructural character of sodium-poly(sialate-siloxo) (Na-PSS) geopolymers synthesised from dehydroxylated kaolinite (metakaolinite) have been investigated. Thermal analysis by means of TG–DTA showed a single endothermic peak at 135–140 °C due to dehydration (water evolution) from the geopolymer framework. Thermal expansion measurements show that geopolymer suffers 2% shrinkage below 250 °C and is then dimensionally stable up to 800 °C. The inclusion of aggregate (α-quartz or granite) was found to reduce the shrinkage by 1% although the presence of the quartz limits the working temperature range of the composite due a to disruptive phase change. Thermal conductivity and compressive strength of Na-PSS geopolymers varied with change in chemical composition of the geopolymer as well as the amount and type of aggregate. Investigation of the microstructure by electron microscopy showed that the ratio of the starting materials influences the homogeneity of the geopolymer microstructure, which in turn leads to differences in thermal conductivity and compressive strength.

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References

  1. Davidovits J (1991) J Therm Anal 37:1633

    Article  CAS  Google Scholar 

  2. Davidovits J (1994) Alkaline cements and concretes. Kiev State Technical University, Ukraine, p 131

  3. Rahier H, Van Melle B, Biesemans M, Wastiels J, Wu X (1996) J Mater Sci 31:71

    Article  CAS  Google Scholar 

  4. Rahier H, Simons W, Van Melle B, Biesemans M (1997) J Mater Sci 32:2237

    Article  CAS  Google Scholar 

  5. Barbosa VFF, MacKenzie KJD, Thaumaturgo C (2000) Int J Inorg Mater 2:309

    Article  CAS  Google Scholar 

  6. Lyon RE, Balaguru PN, Foden A, Sorathia U, Davidovits J, Davidovics M (1997) Fire Mater 21:67

    Article  CAS  Google Scholar 

  7. Van Jaarsveld JGS, Van Deventer JSJ, Lorenzen L (1997) Mine Eng 10(7):659

    Article  Google Scholar 

  8. Phair JW, Smith JD, van Deventer JSJ (2003) Mater Lett 4525:1

    Google Scholar 

  9. Parrott JE, Stuckes AD (1975) Thermal conductivity of solids. Pion Limited, London

    Google Scholar 

  10. Glatzmaier GC, Ramirez WF (1988) Chem Eng Sci 43(12):3157

    Article  CAS  Google Scholar 

  11. Rowles M, O’Connor BH (2003) J Mater Chem 13(13):1

    Google Scholar 

  12. Escalante-Garcia JI, Sharp JH (2001) Cement Concrete Res 31:695

    Article  CAS  Google Scholar 

  13. Hos JP, McCormick PG, Byrne LT (2002) J Mater Sci 37:2311

    Article  CAS  Google Scholar 

  14. Barbosa VFF, MacKenzie KJD (2003) Mater Res Bull 38:319

    Article  CAS  Google Scholar 

  15. Silva FJ, Mathias AF, Thaumaturgo C (1999) Proceedings of Geopolymere ’99. Saint-Quentine, France, p 97

  16. Vedalakshmi R, Raj AS, Srinivasan S, Babu KG (2003) Thermochim Acta 407(1–2):49

    Article  CAS  Google Scholar 

  17. Neville AM (2000) Properties of concrete. Prentice Hall, Harlow, p 378

  18. Raz U, Girsperger S, Thomson AB, A. B. [available online], http://e-collection.ethbib.ethz.ch/cgi-bin/, 2004 [12 May 2004]

  19. Davidovits J [online], http://www.geopolymer.org [21 July 2001]

  20. Liefke E (1999) Proceedings of Geopolymere ’99. Saint-Quentine, France, p 189

  21. Xu Y, Chung DDL (2000) Cement Concrete Res 30:59

    Article  CAS  Google Scholar 

  22. Demiborga R (2003) Energy Build 35:435

    Article  Google Scholar 

  23. Santoyo E, Garcia A, Morales JM, Conteras E, Espinosa-Paredes G (2001) Appl Therm Eng 21:1799

    Article  CAS  Google Scholar 

  24. Subaer, van Riessen A, O’Connor BH, Buckley CE (2002) J Austr Ceram Soc 38(1):83

    CAS  Google Scholar 

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  1. Centre for Materials Research, Department of Imaging & Applied Physics, Curtin University of Technology, PO Box U 1987, Perth, WA, 6845, Australia

    Subaer & Arie van Riessen

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  1. Subaer
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  2. Arie van Riessen
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Correspondence to Arie van Riessen.

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Subaer, van Riessen, A. Thermo-mechanical and microstructural characterisation of sodium-poly(sialate-siloxo) (Na-PSS) geopolymers. J Mater Sci 42, 3117–3123 (2007). https://doi.org/10.1007/s10853-006-0522-9

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  • DOI: https://doi.org/10.1007/s10853-006-0522-9

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