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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: Recent Changes in Corps of Engineers Concrete Construction Specifications
Author(s): George L. Otterson and Woodrow L. Burgess
Publication: Journal Proceedings
Appears on pages(s): 721-727
Keywords: no keywords
Abstract:Describes Corps of Engineers documents which contain concrete construction policies of that organization. A recent change is the preparation of two guide specifications permitting the selection of provisions best adapted to the project and aimed at greater uniformity in similar jobs. Control measures for aggregate gradation, particle size, and uniformity are varied with the use of these materials in lean mass concrete or high-cement-factor concrete. Type II cement is generally specified although other types may be used where job conditions require them or costs permit their use. Limits for air entrainment are raised to a range of 4 to 7 percent induced by the addition of air-entraining aclmixtures at the mixer, water curing of concrete is the general practice with pigmented membrane curing compounds permitted where job conditions make water curing impractical. Several classes of formed surfaces, depending on structural requirements, are specified and three types of control measures are provided for, depending on the type of structure. Conditions are also set down for mixing plant, reinforcing steel, water stops and prepacked concrete.
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