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Fly ash based geopolymer concrete: A review

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2013
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Conference Paper

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Nath, Pradip and Sarker, Prabir. 2013. Fly ash based geopolymer concrete: A review, in Yazdani, S. and Singh, A. (ed), New Developments in Structural Engineering and Construction, Proceedings of the Seventh International Structural Engineering and Construction Conference, ISEC-7, Jun 18-23 2013, pp. 1091-1096. Manoa, Honolulu: University of Hawaii.
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New Developments in Structural Engineering and Construction
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The Seventh International Structural Engineering and Construction Conference, ISEC-7
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Published with permission: Copyright @ 2013 by Research Publishing Services

NOTICE: This is the author’s version of a work in which changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication.

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Abstract

Geopolymer binder is an emerging alternative of ordinary Portland cement (OPC) for concrete because of its comparable physical and mechanical properties shown in the recent studies. The current published literature indicates the prospect of geopolymer concrete for structural use. However, the overall performance and functionality under various environmental conditions has not yet been well documented. This paper reviews the works conducted on the fly ash based geopolymer concrete (FGPC) and summarizes its performance as a concrete material. The properties of FGPC are influenced by many factors such as the types and composition of fly ash (aluminosilicate source), final composition of chemical ingredients (alkaline activators), water to solid ratio and curing condition (temperature and relative humidity). Most of the previous studies were based on heat-cured or steam-cured samples. The implications of the current studies were analyzed to identify the critical factors holding back the wide application of FGPC. Further research areas for the improvement of FGPC were identified.