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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: Theorectical analysis of the Effects of Air Voids in Concrete
Author(s): R. Bruce Marin and Russelll R. Haynes
Publication: Journal Proceedings
Appears on pages(s): 36-41
Keywords: acoustic velocity;air entrainment;concretes;mathematical models;modulus of elasticity;porosity;voids.
Abstract:A physically descriptive model is established for porous materials such as concrete. The model consists of a solid matrix containing randomly distributed, fluid filled voids of irregular shapes and various sizes. The elastic modulus and speed of sound in this model are investigated analytically, and mathematical relationships between these properties and the porosity are obtained. Usin data due to Kaplan the theoretical results are found to describe the behavior of porous concrete very nicely, and some insight is gained into the differences between the effects of entrianed air and air due to incomplete consolidation.
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