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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: A Method for Direct Measurement of Entrained Air in Concrete
Author(s): W. H. Klein and Stanton Walker
Publication: Journal Proceedings
Appears on pages(s): 657-668
Abstract:Since the amount of air entrained in concrete is of major importance and the methods now in use to determine that amount have inherent objections, the pressure method, by application of Boyle’s law, has advantages. The Klein air meter is described, following tests by Pennsylvania-Dixie Cement Corp. and National Ready Mixed Concrete Assoclatlon. The paper presents a description, with illustrations, of the Klein air meter, the test procedure, calculation of air content and calibration of meter, and presentation of data on the use of the method.
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