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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: Tests Of Reinforced Concrete Columns Under Sustained Loading
Author(s): F. E. Richart and R. H. Heitman
Publication: Journal Proceedings
Appears on pages(s): 33-40
Abstract:Tests of 32 columns of Series 3 of the ACI column investigation, which had been held under sustained loading for 6 years. These columns, some of which had developed steel stresses, due to plastic flow of the concrete, of more than 30,000 psi, showed the same strength as columns that had not been under load. Plain columns, unloaded for 6 years, then placed under sustained load, showed negligible plastic flow.
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