MATEC Web Conf.
Volume 97, 2017Engineering Technology International Conference 2016 (ETIC 2016)
|Number of page(s)||5|
|Published online||01 February 2017|
Study of Solid-Liquid Ratio of Fly Ash Geopolymer as Water Absorbent Material
1 Departement of Engineering Management, Universitas Internasional Semen Indonesia, Indonesia
2 Departement of Chemical Engineering, Universitas Internasional Semen Indonesia, Indonesia
3 Konsorsium Riset Geopolimer Indonesia (KORIGI), Lab Beton dan Bahan Bangunan ITS, Surabaya, Indonesia
* Corresponding author: email@example.com
Geopolymer has been synthesized from fly ash to be applicated as water absorbent material. This research conducted to determine the ability of geopolymer to abrsop water by variation of solid – liquid ratio at optimum molarity of NaOH; 3 M. In this research, the synthesis of geopolymer was conducted at the variation of solid-liquid ratio; 60:40, 65:35, 70:30, and 75:25. Result of the treatment were characterized by XRD and SEM to compare the geopolymer structure. Water absorption capacity was measured by immersing the geopolymer specimens in water for 24 hours. Based on the result, solid – liquid ratio with maximum water absorbed was 70:30 with 13,04 wt%.
© The Authors, published by EDP Sciences, 2017
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