Study on the Geopolymerization of Geothermal Silica and Kaolinite

Muhammad Olvianas; Mazaya Najmina; Bernardo Saktya Ludy Prihardana; Fransiskus A.K.G.P. Sutapa; Anis Nurhayati; Himawan Tri Bayu Murti Petrus

doi:10.4028/www.scientific.net/AMR.1112.528

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Study on the Geopolymerization of Geothermal Silica and Kaolinite
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1112Study on the Geopolymerization of Geothermal...

Study on the Geopolymerization of Geothermal Silica and Kaolinite

Abstract:

Geothermal plant produces numerous kinds of possible side products. One of them is silica as a consequence of the existing silica scaling problem which causes geothermal power plant efficiency depletion. The silica recovery possesses a way to utilize it. Geopolymer concrete is a solution to utilize the abundance recovered geothermal silica with low energy consumption and green house gas emission. Thus, in this study, the geopolymerization of geothermal silica and kaolinite will be observed. Geopolymer was inorganic polymer consist of Si and Al atoms that formed through polymerization process. The raw materials being used are geothermal silica as amorphous silica source and kaolinite as alumina source, whereas the activator composed of sodium hydroxide and sodium silicate. Geothermal silica possesses amorphous structure which had been proven by X-Ray Diffraction (XRD) and X-Ray Fluorescence (XRF) analysis with 96.09% silica (SiO₂) content and 18.92% alumina (Al₂O₃) content of kaolinite. The experiment conducted to determine geopolymerization rate of geothermal silica and kaolinite reaction in presence of alkali activator with certain composition and temperature variation ranged from 80°C up to 120°C. Study on geopolymerization rate was carried out by observing geopolymer bond along with the compressive strength as a function of curing time and temperature. As for geopolymer bonds for each sample with different curing temperatures, FTIR and SEM analysis were used to investigate.

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Advanced Materials Research (Volume 1112)

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528-532

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1112.528

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Online since:

July 2015

Authors:

Muhammad Olvianas, Mazaya Najmina, Bernardo Saktya Ludy Prihardana, Fransiskus A.K.G.P. Sutapa, Anis Nurhayati, Himawan Tri Bayu Murti Petrus*

Keywords:

Alkaline Aktivator, Compresive Strength, Geothermal Silica, Kaolinite, Kinetic

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References

[1] A. Palomo, M.W. Grutzeck, and M. T. Blanco, Alkali-activated Fly Ashes, A Cement for the Future, Cement Concrete Res, 29(8) (1999), pp.1323-1329.

DOI: 10.1016/s0008-8846(98)00243-9

Google Scholar

[2] De Silva, P., Sagoe-Crenstil, K., Sirivivatnanon, V., Kinetics of Geopolymerization: Role of Al2O3 and SiO2, Cement Concrete Res. 37 (2007) 512-518.

DOI: 10.1016/j.cemconres.2007.01.003

Google Scholar

[3] H. Xu and J. S. J. van Deventer, The Geopolymerization of Alumino-silicate Minerals, Int. J. Miner. Process, 59 (3) (2000) 247-266.

Google Scholar

[4] J. Davidovits, Geopolymer Chemistry and Applications 3rd ed, Institut Geopolymere (2011), pp.1-20.

Google Scholar

[5] J. Davidovits, Synthesis of New High-Temperature Geo-polymers for Reinforced Plastics/ Composites, in: Proceedings of PACTEC'79, Society of Plastic Engineers (1979), pp.151-154.

Google Scholar

[6] J. Davidovits, Process for the Fabrication of Sintered Panels and Panels Resulting from the Application of This Process, US Patent (1976), 3, 950, 470.

Google Scholar

[7] Nazif, H., Feasibility of Developing Binary Power Plants In The Existing Geothermal Productions Areas In Indonesia, United Nations University Geothermal Training Programme, Reykjavik, Iceland (2011), pp.709-735.

Google Scholar

[8] J.L. Provis and C.A. Rees, Geopolymer Synthesis Kinetics, in: Provis, J.L., van Deventer, J.S.J., (Eds. ), Geopolymers: Structure Processing, Properties and Industrial Applications, Woodhead Publishing, Abingdon, UK (2009), p.118–136.

DOI: 10.1533/9781845696382.1.118

Google Scholar

[9] F. Skvara, T. Jilek, and L. Kopecky, Geopolymer Material Based on Fly Ash, Ceramics-Silikaty. 49 (2005) 195-204.

Google Scholar

[10] R.N. Thakur and S. Ghosh, Effect of Mix Composition on Compressive Strength and Microstructure of Fly Ash Based Geopolymer Composites, ARPN Journal of Engineering and Applied Sciences. 4 (4) (2009) 68-74.

Google Scholar

[11] J.G.S. Van Jaarsveld, J.S.J. Van Deventer and L. Lorenzen, The Potential Use of Geopolymeric Materials to Immobilise Toxic Metals: Part I. Theory and applications Minerals Engineering. 10 (7) (1997) 659-669.

DOI: 10.1016/s0892-6875(97)00046-0

Google Scholar

[12] J.G.S. Van Jaarsveld, J.S.J. Van Deventer, G.C. Lukey, The Effect of Composition and Temperature on the Properties of Fly Ash and Kaolinite-based Geopolymers, J Chem Eng 89 (2002) 63-73.

DOI: 10.1016/s1385-8947(02)00025-6

Google Scholar