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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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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: Aggregate Grading Affects Air Entrainment
Author(s): B. G. Singh
Publication: Journal Proceedings
Appears on pages(s): 803-810
Keywords: no keywords
Abstract:Both plain and air-entrained concretes were made with aggregate of constant specific surface whose grading was varied while other mix proportions were held constant. Mixes made with a given aggregate grading which entrained more air under natural conditions (no air-entraining agent) also entrained proportionately more air with an air-entraining admixture. Relative effect of the different size fractions of aggregate on air entrainment are evaluated, assigning the greatest weight to material passing the No. 25 and retained on the No. 52 sieve. Reduction in sand content or increasing its fineness both tend to decrease air entrainment potential.
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