MATEC Web Conf.
Volume 97, 2017Engineering Technology International Conference 2016 (ETIC 2016)
|Number of page(s)||6|
|Published online||01 February 2017|
Synthesis and Characterization of Fly Ash Geopolymer for Water Absorbent Material
1 Departement of Chemical Engineering, Universitas Internasional Semen Indonesia, Indonesia
2 Departement of Engineering Management, Universitas Internasional Semen Indonesia, Indonesia
* Corresponding author: firstname.lastname@example.org
Geopolymer as a water absorbent material has been synthesized from fly ash. This research aims to determine the ability of geopolymer to save water content with variations of NaOH molar ratio. In this research, the synthesis of geopolymer was conducted by setting NaOH molar ratio at 3, 4, 5, 6 and 7 M. The resulting material characterization was done by using XRD, FTIR and SEM in order to characterize the geopolymer structures. Water absorption capacity was measured by immersing the geopolymer specimens in water for 24 hours. The results show that the optimum molar ratio of NaOH was 3 M, which water absorption capacity was 11.10%wt.
© The Authors, published by EDP Sciences, 2017
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