Riyanto, Agus and Sembiring, Simon and Firdaus, Iqbal (2020) Rietveld analysis of geopolymer prepared from amorphous rice husk silica with different thermal treatment. In: ICASMI 2020, 3 September 2020, Bandar Lampung. (Submitted)

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Abstract

The work aims to study the temperature effect on the geopolymer's crystal structure prepared from amorphous silica rice husk. The samples were prepared via the sol-gel method and then subjected to thermal at a temperature of 250-650 oC. EDS identified the element and compound composition on the surface of the sample. The crystal structure of samples identified by Rietveld refinement of XRD. The sample was dominated by the gibbsite phase at relatively low temperatures (250 oC). The boehmite phase dominates at a temperature of 350-450 oC. The amorphous structure of the geopolymer was formed at a temperature of 550-650 oC. The geopolymer mainly formed from the reaction of boehmite and silica. This study shows a significant effect of temperature on the formation of the geopolymer structure.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	Q Science > QC Physics
Divisions:	Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Prodi Fisika
Depositing User:	Agus Riyanto
Date Deposited:	20 Nov 2020 02:17
Last Modified:	20 Nov 2020 02:17
URI:	http://repository.lppm.unila.ac.id/id/eprint/26396

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