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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: Improved Air-Entraining Admixtures for Concrete
Author(s): Keith L. Johnson
Publication: Journal Proceedings
Appears on pages(s): 402-411
Keywords: admixtures (concrete);air-entrained concretes;air-entraining agents; compressive strength;concretes;durablity;research.
Abstract:Test data covering improved, synthetically derived air-entraining admixtures for concrete are presented. The test data indicate that improved air-entraining admixtures can be formulated that overcome the loss in compressive strength usually associated with the incorporation of air into hydraulic cement mixes. Data comparing the most promising of the materials tested with two established commercial products are presented and show that the valuable compressive strength properties are retained even in the presence of grossly excessive amounts of admixture such as might inadvertently be used in the field. It is expected that products based on this new material will be generally available to the concrete in-dustry in the near future.
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