Low Heat and Eco-Friendly Fly Ash Concretes

This report tested a number of fresh and hardened properties of fly ash concretes including: bleeding compressive strength finishability heat of hydration penetration of chloride ions plastic properties pumpability setting time shrinkage slump and slump retention stripping strength and water reduction. Results demonstrate that fly ash concretes can be designed to produce results equivalent or superior to high performance Portland and blended GGBS high performance concretes in the UAE -at similar cost- and 28 day interpretations of performance may be waived in circumstances where later age testing permits users to take advantage lower heat of hydration and the superior strength gain of fly ash concretes.

Technical Report Author: David Cooney, Unibeton,

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