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Fly ash-based geopolymer concrete: study of slender reinforced columns

  • Advances in Geopolymer Science & Technology
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Abstract

The objectives of this paper are to present the results of experimental study and analysis on the behaviour and the strength of reinforced geopolymer concrete slender columns. The experimental work involved testing of twelve columns under axial load and uniaxial bending in single curvature mode. The compressive strength of concrete for the first group of six columns was about 40 MPa, whereas concrete with a compressive strength of about 60 MPa was used in the other six columns. The other variables of the test program were longitudinal reinforcement ratio and load eccentricity. The test results gathered included the load carrying capacity, the load-deflection characteristics, and the failure modes of the columns. The analytical work involved the calculation of ultimate strength of test columns using the methods currently available in the literature. A simplified stability analysis is used to calculate the strength of columns. In addition, the design provisions contained in the Australian Standard AS3600 and the American Concrete Institute Building Code ACI318-02 are used to calculate the strength of geopolymer concrete columns. This paper demonstrates that the design provisions contained in the current standards and codes can be used to design reinforced fly ash-based geopolymer concrete columns.

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Acknowledgements

The first author is a recipient of the Unsrat-TPSDP-Asian Development Bank (ADB) Scholarship. Australian Development Scholarship supports the third author.

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Correspondence to B. V. Rangan.

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Sumajouw, D.M.J., Hardjito, D., Wallah, S.E. et al. Fly ash-based geopolymer concrete: study of slender reinforced columns. J Mater Sci 42, 3124–3130 (2007). https://doi.org/10.1007/s10853-006-0523-8

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  • DOI: https://doi.org/10.1007/s10853-006-0523-8

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