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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: Gravel Beneficiation in Michigan
Author(s): Frank E. Legg. Jr. and William W. McLaughlin
Publication: Journal Proceedings
Appears on pages(s): 813-826
Abstract:Michigan natural gravel is now competing with imported high quality coarse aggregates intended for concrete subject to severe winter exposure, as a result of installation of various types of beneficiation plants. Thus, local deposits are being utilized, after upgrading, without sacraficing concrete quality . This development was prompted in large measure by the decision of the Michigan State Highway Department that aggregate quality standards Gould not be relaxed despite the greatly increased emend of the accelerated highway construction program. Many of Michigan’s lower pehinsula glacial gravels have been found particularly amenable to upgrading by heavy media separation, although commercial installations of elastic fractionation, jigs, and soft tors are being tried.
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