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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: Lateral Pressure of Fresh Concrete
Author(s): N. J. Gardner and P. T.-J. Ho
Publication: Journal Proceedings
Appears on pages(s): 809-820
Keywords: concrete construction; formwork (construction); fresh concretes; lateral pressure; loading rate; loads (forces); placing.
Abstract:An experimental investigation was carried out to determine the variation of the envelope of lateral pressure exerted by wet concrete with (1) rate of placing, (2) strength of ocncrete, (3) slump and consistency of concrete, (4) formwork size, and (5) the yielding of formwork. It was observed that the envelope is essentially "hydrostatic" up to some limiting value and thereafter constant. Increase in rate of placing and increase in slump increase the maximum lateral pressure. Aggregate size and concrete strength have only a minor effect on the lateral pressure. Formwork yielsding significantly reduces the lateral pressure. Arching has a significant effect in limiting the lateral pressures for the dimensions and rates of placing used in the study.
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