Restricted Hydration of Mass-Cured Concrete Containing Fly Ash


Cement paste and concrete specimens containing three different mixtures of portland cement (PC) and high-lime fly ash (FA) were subjected to various curing conditions, and the strengths, non-evaporable water, and porosities compared with control mixes containing portland cement only. Strength and porosity data indicated that the cementing action of the mixtures was in all cases inferior to portland cement. For each mixture the strength loss resulting from imperfect curing, i.e. sealed or exposed to 50% relative humidity, was greater than for portland cement. In the case of concrete drying from one surface, strength differences were found, but these were not as clearly defined as those obtained in the paste specimens.

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    R.H. Mills, in Blended Cements, STP 897, edited by G. Frohnsdorff, (ASTM, Philadelphia, 1986) pp. 49–61.

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    R.H. Mills, in Fly Ash and Coal Conversion By-Products: Characterization. Utilization and Disposal II, edited by G.J. McCarthy, F.P. Glasser and D. Roy (MRS 65, Pittsburgh, 1986) pp. 207–217.

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Correspondence to R. H. Mills.

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Mills, R.H., Buenfeld, N. Restricted Hydration of Mass-Cured Concrete Containing Fly Ash. MRS Online Proceedings Library 85, 235 (1986).

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