Abstract
A method of mixture proportioning of fly ash concretes is presented. The method is based on the
strength and flow data of a minimum of nine fly ash-cement mortars. The essence of the method is
that three fly ash-binder ratios are to be combined with three water-binder ratios in the range of
interest. The strength and water demand data are analyzed for constructing mixture proportion
charts. The strength vs. water-binder ratio charts are prepared by down-scaling the 50-mm
mortar strength to the 150-mm standard concrete cylinders. The method is illustrated with the
help of examples. The trial mixtures proportioned using the proposed method have reasonably
achieved the 28 day target strengths.
A. Nusrat, M. A. Tahir. (2008) Mixture Proportioning of Fly Ash-Concretes Based on Mortar Strength and Flow Data , Pakistan Journal of Engineering and Applied Sciences, Volume 2, Issue 1.
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