CHARACTERIZATION ALKALI-ACTIVATED MORTAR MADE FROM FLY ASH AND SANDBLASTING

Authors

  • Yuyun Tajunnisa
  • Ridho Bayuaji
  • Nur Ahmad Husin
  • Yosi Noviari Wibowo
  • Mitsuhiro Shigeishi

Keywords:

Alkali-Activated Material, Geopolymer, Fly Ash, Sandblasting, Waste Material

Abstract

This research is to find out the contribution of waste energy utilization in Indonesia as a binding agent of alkali-activated mortar. In a previous study, researchers investigated mortar made from class F fly ash/GGBFS/micro-silica in Japan. The inclusion of GGBFS is to shorten/normalize the setting time and micro-silica is to improve mortar performance. This research is then continued by using abundant waste material in Indonesia, namely class C fly ash, by making cubic mortar specimens. Setting time of class C fly ash paste from Indonesia is very fast, in contrast to that of class F fly ash paste from Japan. Sandblasting as abundant waste material in Indonesia is substituted to class C fly ash to lengthen the setting time of paste and to improve standard deviation of a compressive test of mortar specimens. On the other hand, the addition of sandblasting waste has a negative effect, because it reduces a compressive strength of mortar specimens.

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Published

2019-08-28

How to Cite

Yuyun Tajunnisa, Ridho Bayuaji, Nur Ahmad Husin, Yosi Noviari Wibowo, & Mitsuhiro Shigeishi. (2019). CHARACTERIZATION ALKALI-ACTIVATED MORTAR MADE FROM FLY ASH AND SANDBLASTING . GEOMATE Journal, 17(60), 183–189. Retrieved from https://geomatejournal.com/geomate/article/view/377

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