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Utilization of Fly Ash with Higher Loss on Ignition for Geopolymer Mortar

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Abstract:

In this study, utilization of coal fly ash with higher loss on ignition (LOI) for geopolymer mortar was investigated. The fly ash with approximately 9% of LOI was compared with Class F fly ash. Relationship between heat curing condition and strength was clarified. As the results, although compressive strength of geopolymer mortar with higher LOI was 30-50% smaller, it was available for geopolymer mortar as an alumina silicate material. The higher temperature and the longer period for initial curing, the higher strength was obtained. In order to decrease drying shrinkage, the higher temperature and the longer period for heat curing were required.

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Periodical:

Advanced Materials Research (Volume 1129)

Pages:

614-620

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1129.614

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Online since:

November 2015

Authors:

Yasutaka Sagawa*, Shu Ota, Koji Harada, Takeyoshi Nishizaki, Hiroki Goda

Keywords:

Fly Ash, Geopolymer, Heat Curing, Loss on Ignition, Strength

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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