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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: Concrete Roadbed onn the Pere Marquette Railway
Author(s): Paul Chipman
Publication: Journal Proceedings
Appears on pages(s): 143-156
Abstract:This paper describes in detail two experimental installations of concrete roadbed near Detroit, Mich. The first was built in 1926 and is 1326 ft long. It is made up of 34 sections, each 39 ft long, IO ft wide, and 21 in, thick. In addition to ordinary reinforcement, a light truss is used under each rail. Experience under operation of trains led to the second rnstallatton late in 1929. This is 390 ft Ion J and made u of 20 sections, each 19 ft 6 in. long. se of a cellu ar type of construction resulted in a 40 percent reduction in concrete, bringing it to about 3/8 cu yd per lin ft.. An improved type of rail fastening was used. The feelinig of rigidity experienced in riding over the first installation was eliminated by the use of a 7/8 in. board under the rail, set in a depression formed in the concrete.
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