The Effect of Particle Size Distribution of Lime on Properties of the Autoclaved Calcium Hydrosilicate Materials

Abstract:

This investigation was made to examine how the particle size of lime influence the properties of calcium hydrosilicate materials. Quicklime was sorted in three fractions: 0-1 mm, 1-11.2 mm and 11.2.-22.4 mm. Slaked lime putties were prepared in the laboratory by mixing lime fractions and deionized water under vigorous stirring. The C/H ratio was 1:8. The lime putties were mixed with finely ground sand with the C/S ratio equal to 0.85. The hydrosilicate materials were prepared under hydrothermal conditions: temperature 205 °C, pressure 16 bar. This work focuses on lime putty rheological behaviour and on composition and properties of lime hydrosilicates. It was found that hydrated particles of fractionated lime form smaller aggregates than standard lime. Plasticity increases with the increasing size of fraction. When separate fractions are used, 11.3 Å tobermorite crystallization is slower.

• Periodical: Materials Science Forum (Volume 908)
• Pages: 29-34
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.908.29
• Online since: October 2017
• Authors: Dana Kubátová*, Martin Boháč
• Keywords: Calcium Silicate Hydrates, Lime Putty, Particle Size Distribution, Rheology

References

[1] S. Shaw, S.M. Clark, and C.M. B Henderson: Chem. Geol. Vol. 167 (2000), p.129.

[2] E. Spudulis, V. Šavareika, A. Špokauskas: Mater. Sci. Vol. 19 (2013), p.190.

[3] K. Speakman: Mineral. Mag. Vol. 36 (1968), p.1090.

[4] E. Ruiz-Agudo, C. Rodriguez-Navarro: Langmuir Vol. 26 (2010), p.3868.

[5] H.F.W. Taylor: Cement Chemistry (Academic Press, London 1997).

[6] S. Y Hong, E.P. Glasser: Cem. Conc. Res. Vol. 34 (2004) p.1529.

[7] S. Bernstein, K.T. Fehr: Prog. Cryst. Growth Charact. Mater. Vol. 58 (2012), p.84.

[8] J. Kikuma et. al.: J. Solid State Chem. Vol. 184 (2011), p. (2066).

[9] P. Vavrova, P. Kotlik, in: 13. Kolloquium und Workshop über Rheologische Messungen a mineralischen Baustoffen, Regensburg, (2004).

[10] M. Fourmentin, O. Guillaoume, P. Faure: Rheol. Acta Vol. 54 (2015), p.647.

[11] J.A.H. Oates: Lime and Limestone. Chemistry and Technology, Production and Uses. (WILEY-VCH, England, 1998).

[12] R. S. Boynton: Chemistry and Technology of Lime and Limestone (John Wiley & Sons, United States of America, 1966).

[13] R. Greenwood, P.F. Luckham, T. Gregory: J. Colloid Interface Sci. Vol. 191 (1997), p.11.

[14] P.T. Spieer, Shear-Induced Aggreagation-Fragmentation: Mixing and Aggreagate Morphology Effects, Ph.D. Dissertation, (1997).

[15] R.J. Butera, M. S. Wolfe, J. Bender, N. Wagner: J. Phys Rev Lett. Vol. 77 (1996), p.2177.

[16] P. Barret, D. Monotriet, B Cottin: Cem. Con. Res. Vol. 7 (1977), p.61.