The Effect of KOH Concentration on Setting Time and Compressive Strength of Fly Ash-Based Geopolymer

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Geopolymer is produced from the alkali activation of materials rich in Si and Al such as fly ash. Sodium hydroxide (NaOH) with high concentration is normally used in geopolymerization. Limited research has been done with low concentration of alkali activator. This study confirms that KOH with low concentration affect the setting time and compressive strength of geopolymer in order to have good mechanical properties. Optimum result was observed at 4.5 M KOH. This result can be further developed to produce geopolymer with low alkaline activator for coating applications.

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Edited by:

Iqbal Ahmed

Pages:

94-97

Citation:

T. Rahmiati et al., "The Effect of KOH Concentration on Setting Time and Compressive Strength of Fly Ash-Based Geopolymer", Applied Mechanics and Materials, Vol. 625, pp. 94-97, 2014

Online since:

September 2014

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[1] H. Xu, J.S.J. Van Deventer, Int. J. Miner. Process. 59 (2000) 247-266.

[2] J. Temuujin,K. Okada, K.J.D. D. MacKenzie, Appl. Clay Sci. 21 (2002) 125-131.

[3] P. Duxson, J.L. Provis, G.C. Lukey, Colloid Surf. A: Physicochem. Eng. Aspects 269 (2005) 47-58.

[4] K. Pimraksa, P. Chindaprasit, A. Rungchet, K. sagoe-Crentsil, T. Sato, Materials science and engineering A 528 (2011) 6616-6623.

DOI: https://doi.org/10.1016/j.msea.2011.04.044

[5] He Yan, Cui Xue-min, Mao jin, Liu Le-ping, Liu Xing-dong, Chen Jin-yu, Microporous and mesoporous materials 161 (2012) 187-192.

DOI: https://doi.org/10.1016/j.micromeso.2012.05.039

[6] Ross P. Williams, Arie van Riessen, Fuel 89 (2010) 3683-3692.

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