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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: Progress In Determining the Relation Between Test Cylinders and Concrete in the Structure
Author(s): Harlan H. Edwards
Publication: Journal Proceedings
Appears on pages(s): 57-64
Abstract:Tests on four college structures in Claremont, Calif., indicate that welldesigned, placed, and cured con-crete has strength higher than standard test cylinders, due to lowering of W/C by form absorption and per-colation. Cylinders cast in unwaxed paper molds surrounded by wall concrete in curing, prove reliable indicators of concrete characteristics. Damp sand job-curing of cylinders is worthless. Slab concrete is generally of higher strength than walls of the same mix.
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