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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: Mackinac Bridge Pier Construction
Author(s): R. E. Davis, Jr. and C. E. Haltenhoff
Publication: Journal Proceedings
Appears on pages(s): 581-595
Keywords: no keywords
Abstract:Construction of the Mackinac Bridge, which will link the upper and lower peninsulas of Michigan, utilized the prepacked method for placing over 400,000 cu yd of concrete in the substructure. Coarse aggregate for the concrete was placed directly in the cofferdams or caissons by self-unloading ships at rates of up to 2500 tons per hr. The voids in the coarse aggregate were intruded with heavily sanded grout which was pumped from a floating mixing plant. By such grouting, prepacked concrete, containing as little as 2.4 sacks of cement per cu yd for a compressive strength of 3000 psi, was produced at a maximum of 6250 cu yd per day.
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