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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: Effects of Aggregate Properties on Strength of Concrete
Author(s): Delmar L. Bloem and Richard D. Gaynor
Publication: Journal Proceedings
Appears on pages(s): 1429-1456
Abstract:Tests were made with 56 combinations of fine and coarse aggregate to study the effects of maximum size and other properties on water requirement and strength of concrete. Results confirm indications of earlier work that, at equal water-cement ratios, smaller sizes of aggregate produce higher concrete strengths than large ones. Depending on circumstances such as richness of mix, individual properties of the particular aggregate, and the magnitude of the size difference, an increase in maximum size may result in either an increase or decrease in concrete strength at a fixed cement content. Furthermore, other characteristics of the aggregate appear to account for much greater variations in strength than changes in size over the usual range. Particle shape and texture of both Fine and coarse aggregate have a marked influence on concrete mixing water requirement, which in turn affects strength.
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