Correlation between Na2SiO3/NaOH and NaOH Molarity to Flexural Strength of Geopolymer Ceramic

Nur Ain Jaya; Mohd Mustafa Al Bakri Abdullah; Che Mohd Ruzaidi Ghazali; M. Binhussain; Hussin Kamarudin; Romisuhani Ahmad; Januarti Jaya Ekaputri

doi:10.4028/www.scientific.net/AMM.754-755.152

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 754-755Correlation between Na2SiO3/NaOH and NaOH Molarity...

Correlation between Na₂SiO₃/NaOH and NaOH Molarity to Flexural Strength of Geopolymer Ceramic

Abstract:

Clay based geopolymer ceramic were produced through the geopolymerisation process by the alkali activation of kaolin with an activator solution which is mixture of sodium silicate and sodium hydroxide and undergoes heating at elevated temperature. The concentration of NaOH used in this study was in the range of 6 M-12 M. The ratio of kaolin to alkaline activator used is 1.0. Three different ratios of Na₂SiO₃/NaOH of 0.16, 0.24 and 0.32 were used to investigate the optimum flexural strength. The samples were cured at 80 °C for 24 hours and sintered at temperatures ranging from 900 °C-1200 °C. The optimum flexural strength of 86.833 MPa is obtained when the ratios of Na₂SiO₃/NaOH is 0.24 with the NaOH concentration of 12M at 1200 °C.

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Applied Mechanics and Materials (Volumes 754-755)

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152-156

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.754-755.152

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Online since:

April 2015

Authors:

Nur Ain Jaya*, Mohd Mustafa Al Bakri Abdullah, Che Mohd Ruzaidi Ghazali, M. Binhussain, Hussin Kamarudin, Romisuhani Ahmad, Januarti Jaya Ekaputri

Keywords:

Ceramic, Flexural Strength, Geopolymer, Na₂SiO₃/NaOH Ratio, NaOH Molarity

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