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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: The Floor Flatness Report
Author(s): Mark A. Cheek
Publication: Concrete International
Appears on pages(s): 35-39
Keywords: floor flatness, floor levelness, F-numbers, engineering report
Abstract:Floor profile finish quality has traditionally been specified by limiting the gap under either an unleveled or leveled 10 ft (3 m) straightedge. Some specifications still take this tolerance approach, even though there is no nationally accepted standard either for taking measurements or for establishing compliance of a floor profile. In many specifications, slab finish quality is not addressed at all. Use of a nonstandard test procedure and failure to specify floor profiles often lead to conflict and litigation. This article attempts to help designers interpret floor flatness reports.
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