In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Become an ACI Member
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.
American Concrete Institute
38800 Country Club Dr.
Farmington Hills, MI
Feedback via Email
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: Origin, Evolution, and Effects of
the Air Void System in Concrete
Part 4-The Air Void System in Job Concrete*
Author(s): Richard C. Mielenz, Vladimir E. Wolkodoff,
James E. Backstrom, and Richard W. Burrows **
Publication: Journal Proceedings
Appears on pages(s): 507-517
Keywords: no keywords
Abstract:The air void system observed in concrete from engineering structures is comparable to that observed in concrete specimens prepared in the laboratory. The void system in non-air-entrained concrete varies widely, the observed specific surface ranging from 107 to 1111 in. In air-entrained concrete, the observed specific surface ranges from 615 to 1600 in. and the spacing factor ranges from 0.0023 to 0.0081 in. The results of the examination indicate that a satisfactory air void system in job concrete is assured if the recommendations of ACI 613-54 are followed. Methods for microscopical measurement of the air void system in hardened concrete are described in an appendix to Part 4.
Click here to become an online Journal subscriber