Effect of Fly Ash Pre-Sintering Temperature on Adiabatic Foam Fabricated by Sodium Silicate

Abstract:

Adiabatic foam was fabricated successfully using sodium silicate as the raw material with pre-sintered fly ash as additive. Fly ash was pre-sintered at 500 to 900 oC and the effect of the pre-sintering temperature on the performance, including the thermal conductivity, density, compressive strength and microstructure, was researched. The results show that the pre-sintering process effectively reduces the density of the samples while the thermal conductivity and compressive strength are higher than those of the samples fabricated by the fly ash without being pre-sintered. Moreover, the samples exhibit tri-modal spherical pore structure with macropores and mesopores. The pore size remains unchanged until the pre-sintering temperature exceeds 700 oC, and then starts to increase.

• Periodical: Solid State Phenomena (Volume 295)
• Pages: 105-109
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.295.105
• Online since: August 2019
• Authors: Ye Li*, Heng Ze Zhao, Xu Dong Cheng
• Keywords: Adiabatic Foam, Compressive Strength, Density, Porous Materials, Pre-Sintered Temperature, Thermal Properties

References

[1] P.P. Marabini Anna Maria, Maccari Dante, Burragato Francesco, Pelino Mario: Int. J. Miner. Process. Forum Vol. 53 (1998), p.121.

[2] F. Barreca, C.R. Fichera: Energ. Buildings. Forum Vol. 62 (2013), p.507.

[3] M. Alam, H. Singh, S. Brunner, C. Naziris: Energ. Buildings. Forum Vol. 69 (2014), p.442.

[4] E. Bernardo, R. Cedro, M. Florean, S. Hreglich: Ceram. Int. Forum Vol. 33 (2007), p.963.

[5] Y. Li, X. Cheng, W. Cao, L. Gong, R. Zhang, H. Zhang: Materials & Design Forum Vol. 88 (2015), p.1008.

[6] ASTM C 618. In: Annual book of ASTM standards Forum Vol. 4 (2001), p.

[7] D. Khale, R. Chaudhary: Journal of Materials Science Forum Vol. 42 (2007), p.729.

[8] N. Essaidi, B. Samet, S. Baklouti, S. Rossignol: Appl. Clay Sci. Forum Vol. 88-89 (2014), p.221.

[9] A.P. Rao, A.V. Rao, G.M. Pajonk: Appl. Surf. Sci. Forum Vol. 253 (2007), p.6032.

[10] C.F. Alessandro Bertoluzza, Maria Antonietta Morelli, Vittorio Gottardi, Massimo Guglielmi J. Non-Cryst. Solids Forum Vol. 48 (1982), p.117.

DOI: 10.1016/0022-3093(82)90250-2

[11] J. Jabbour, S. Calas, S. Gatti, R.K. Kribich, M. Myara, G. Pille, P. Etienne, Y. Moreau: J. Non-Cryst. Solids Forum Vol. 354 (2008), p.651.

DOI: 10.1016/j.jnoncrysol.2007.07.091

[12] Y. Chen, Y. Hong, F. Zheng, J. Li, Y. Wu, L. Li: J. Alloys Compd. Forum Vol. 478 (2009), p.411.

[13] C. Duran Atiş: Cem. Concr. Res. Forum Vol. 35 (2005), p.1112.

[14] N. Chusilp, C. Jaturapitakkul, K. Kiattikomol: Constr. Build. Mater. Forum Vol. 23 (2009), p.3523.

[15] S. Martin, K. Miroslava, K. Ivana, M. Frantiska, P. Maria: Acta Montan Slovaca Forum Vol. 15 (2010), p.277.

[16] Y. Han, C. Li, C. Bian, S. Li, C.-A. Wang: J. Eur. Ceram. Soc. Forum Vol. 33 (2013), p.2573.

[17] M. Strozi Cilla, M. Raymundo Morelli, P. Colombo: Ceram. Int. Forum Vol. 40 (2014), p.13585.

[18] H.R. Rezaei, R.P. Gupta, G.W. Bryant, J.T. Hart, G.S. Liu, C.W. Bailey, T.F. Wall, S. Miyamae, K. Makino, Y. Endo: Fuel Forum Vol. 79 (2000), p.1697.