Effect of Coal Ash Properties on Compressive Strength of Bottom Ash-Based Geopolymer Concrete

Abstract:

This paper presents the results of an experimental study on the behavior of bottom ash-based geopolymer concrete (GPC) cured at ambient temperature. A total of five bathes of bottom ash-based GPC were manufactured. The influence of the particle size and chemical composition of bottom ash on the compressive strength of GPC was investigated. The results indicate that the investigated parameters significantly affect the 28-day compressive strength of bottom ash-based GPCs. It is also found that the strength gain of ambiently-cured coal ash-based GPCs continues beyond the concrete age of 28 days.

• Periodical: Materials Science Forum (Volume 857)
• Pages: 395-399
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.857.395
• Online since: May 2016
• Authors: Tian Yu Xie, Togay Ozbakkaloglu*
• Keywords: Alkali-Activated Cement, Ambient Temperature, Bottom Ash, Geopolymer Concrete (GPC)

References

[1] Wallah. S.E. and Rangan B.V. (2006). Low-calcium fly ash-based geopolymer concrete: long-term properties. Res. Report-GC2, Curtin University, Australia. 76-80.

[2] Pacheco-Torgal. F., Castro-Gomes. J. and Salali. S. (2008). Alkali-activated binders: A review: Part 1. Historical background, terminology, reaction mechanisms and hydration products. Construction and Building Materials, 22(7), 1305-1314.

DOI: 10.1016/j.conbuildmat.2007.10.015

[3] Temuujin. J., Williams. R.P. and Van Riessen. A. (2009). Effect of mechanical activation of fly ash on the properties of geopolymer cured at ambient temperature. Journal of Materials Processing Technology, 209(12), 5276-5280.

DOI: 10.1016/j.jmatprotec.2009.03.016

[4] ul Haq. E., Padmanabhan. S.K. and Licciulli. A. (2014). Synthesis and characteristics of fly ash and bottom ash based geopolymers–a comparative study. Ceramics International, 40(2), 2965-2971.

DOI: 10.1016/j.ceramint.2013.10.012

[5] Xie. T. and Ozbakkaloglu. T. (2015). Behavior of low-calcium fly and bottom ash-based geopolymer concrete cured at ambient temperature. Ceramics International, 41(4), 5945-5958.

DOI: 10.1016/j.ceramint.2015.01.031

[6] Topcu. I. B. and Mehmet U.T. (2011). Properties of geopolymer from circulating fluidized bed combustion coal bottom ash. Materials Science and Engineering A, 528(3), 1472-1477.

DOI: 10.1016/j.msea.2010.10.062

[7] Kim. S.H., Ryu. G.S., Koh. K.T. and Lee. J.H. (2012).

[8] Santa. R.A.A.B., Bernardin. A.M., Riella. H.G. and Kuhnen. N.C. (2013). Geopolymer synthetized from bottom coal ash and calcined paper sludge. Journal of Cleaner Production, 57, 302-307.

DOI: 10.1016/j.jclepro.2013.05.017

[9] Xie. T. and Ozbakkaloglu. T. (2015). Influence of coal ash properties on compressive behaviour of FA-and BA-based GPC. Magazine of Concrete Research, doi: 10. 1680/macr. 14. 00429.

DOI: 10.1680/macr.14.00429

[10] Temuujin, J., R. P. Williams., and Van Riessen. A. (2009). Effect of mechanical activation of fly ash on the properties of geopolymer cured at ambient temperature. Journal of Materials Processing Technology, 209(12), 5276-5280.

DOI: 10.1016/j.jmatprotec.2009.03.016

[11] Diaz. E.I., Allouche. E. N. and S. Eklund. (2010). Factors affecting the suitability of fly ash as source material for geopolymers. Fuel, 89(5), 992-996.

DOI: 10.1016/j.fuel.2009.09.012

[12] De Silva. P., Sagoe-Crenstil. K. and Sirivivatnanon. V. (2007). Kinetics of geopolymerization: role of Al2O3 and SiO2. Cement and Concrete Research, 37(4), 512-518.

DOI: 10.1016/j.cemconres.2007.01.003

[13] Temuujin. J., Van Riessen. A. and Williams. R. (2009). Influence of calcium compounds on the mechanical properties of fly ash geopolymer pastes. Journal of hazardous materials, 167(1), 82-88.

DOI: 10.1016/j.jhazmat.2008.12.121