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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: Pressure of Concrete Against Formwork
Author(s): N. J. Gardner
Publication: Journal Proceedings
Appears on pages(s): 279-286
Keywords: concrete construction; formwork (construction); fresh concretes;
hydrostatic pressure; lateral pressure; loads (forces); placing; plasticizers;
pressure; slump tests; structural design; temperature; vibration; vibrators (machinery).
Abstract:The paper reviews the currently accepted design equations concerned with the lateral pressure of fresh concrete against vertical form faces and discusses the various factors that influence the lateral pressure; namely, vibration, rate of placing, minimum form dimension, concrete slump, and concrete temperature. The paper also reports experimental results obtained at the University of Ottawa on a large instrumented form. From the experimental results a design lateral pressure equation was developed. The experimental results are compared with the results predicted by the proposed equation and the accepted CIRIA and ACI equations.
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