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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: Consistent Inconsistencies in the Consistency of Concrete
Author(s): C. H. Scholer
Publication: Journal Proceedings
Appears on pages(s): 537-548
Abstract:Concrete segregation, usually considered objection able, is to some extent necessary and desirable as in placing and finishing operations at surfaces and around reinforcing. Concrete should be designed accordingly. Bleeding of concrete, long recognized as objectionable, has its uses. Construction practice depends on free water for lubrication. Arbitrary re-duction of bleeding may lead to serious errors. Den- sity of concrete is a common measure of its quality. Concrete technicians know that the densest concrete is not obtained with rich mixtures yet density is commonly considered a result of rich mixtures. The use of cement admixtures to promote workability actually reduces density by incorporating air, but nevertheless improves durability.
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