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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: Compressive Strength of Lightweight
High-Strength Concrete Subjected to
Author(s): G.Y. Kim, Y.S. Kim, and T.G. Lee
Publication: Special Publication
Appears on pages(s): 287-296
Keywords: compressive strength; high-strength concrete; high temperature; lightweight aggregate; strain at peak stress; stress-strain curve.
Abstract:In this study, the effects of high temperature on mechanical properties
of high strength concrete were experimentally investigated. The effect of elevated temperatures ranging from 20 to 700 °C (68 to 1292 °F) on the material mechanical properties of normal-weight and lightweight aggregate high-strength concrete of 60 MPa grade was evaluated. Tests were conducted on Ø100 × 200 mm (3.94 × 7.87 in.) cylinder specimens. The specimens were tested under both stressed and unstressed conditions. The specimens were preloaded to 20 and 40% of their ultimate compressive strength at room temperature and subjected to temperatures ranging from 100 to 700 °C (212 to 1292 °F), and the compressive strength compared to that
observed at 20 °C (68 °F).
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