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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: Pulses in Concrete Technology
Author(s): Krystian H. Eyman
Publication: Journal Proceedings
Appears on pages(s): 78-81
Keywords: aggregates; centrifugal force; consolidation; fine aggregates; fresh aggregates;
Abstract:A method for consolidating freshly mixed concrete is described. The method uses the change in centrifugal force of rotating eccentric weights to provide the compacting force. Several pairs of eccentrics of adequate size, rotating with different speeds, are used. In each period of full rotation of the most slowly moving weights, a summing of centifugal force occurs providing the desired pulse. In the remaining intervals, the forces cancel each other. The method can be used for consolidation of a variety of materials
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