Abstract
Studies on the modification of the hydration products of fly ash (FA), β-cyclodextrin (β-CD) and fly ash-β-cyclodextrin (FA-β-CD) composite cement paste samples as hydration progressed were done using X-ray diffraction analysis, scanning electron microscopy and Fourier transform infrared spectroscopy. This paper investigates the effect of FA, β-CD and FA-β-CD composite on the hydration and pozzolanic reactions. It was evident from all the analyses that β-CD improved the hydration reaction from the 7 day hydration period, while improvement on pozzolanic reaction was revealed from the 28 day hydration period. The study contributed to the knowledge of FA performance as a composite with cyclodextrin and promoted the continued inclusion of FA in concrete.
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We thank the support of the University of Johannesburg, South Africa and University of South Africa, for making this research possible.
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Ikotun, B.D., Mishra, S.B. & Fanourakis, G.C. Modification of the hydration products of hydrated cement paste by fly ash, β-cyclodextrin and fly ash-β-cyclodextrin composite. J Incl Phenom Macrocycl Chem 87, 219–237 (2017). https://doi.org/10.1007/s10847-017-0692-x
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DOI: https://doi.org/10.1007/s10847-017-0692-x