Mixture Proportioning of Fly Ash-Concretes Based on Mortar Strength and Flow Data

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Published: Jun 22, 2016

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A. Nusrat
M. A. Tahir

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.

Article Details

Issue
2008: Volume 2 Jan 2008
Section
City and Regional Planning, Environmental Engineering, Architecture

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