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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Weathering Resistance Of Concretes Containing Fly-Ash Cements
Author(s): Raymond E. Davis, Harmer E. Davis and J. W. Kelly
Publication: Journal Proceedings
Appears on pages(s): 281-296
Abstract:Investigation, extending scope of investigation pre- viously reported, was undertaken to determine whether fly ashes of moderately high carbon content could be used advantageously as pozzolanic replacements for small percentages of portland cement, particularly with regard to weathering resistance of concrete. Eleven fly ashes varying in carbon content (I to I7 percent) and fineness (specific surface 2500 to 5500 sq c per g) were each admixed with a modified portland cement, with IO and 20 percent of cement replaced by an equal weight of fly ash. The fly-ash cements thus produced were tested to determine the water requirement, time of setting, autoclave expan- sion, tensile strength of standard mortar, comoressive strength of concrete, drying shrinkage of concrete and resistance of saturated concrete to the action of repeated freezing and thawing. formance of the fly-ash cements Herein the per is compared with that of the portland cement, and the influence of
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