STP858

    Static and Cyclic Behavior of Structural Lightweight Concrete at Cryogenic Temperatures

    Published: Jan 1985


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    Abstract

    The mechanical behavior of a high-strength, lightweight concrete made with expanded-shale aggregate was determined in the temperature range from 23°C (73°F) to −196°C (−320°F). High-strength, lightweight concrete is of particular interest for use in offshore cryogenic containment structures in which the concrete may be subjected to low temperatures and high-intensity cyclic loading simulating 20-year stormwave action. Values of compressive strength, tensile strength, and elastic modulus were determined, with moisture content and cyclic loading serving as key parameters. An evaluation was also made of the behavior of embedded strain gages at cryogenic temperatures. The results indicate that the lightweight concrete performed favorably under the test conditions, with the mechanical properties generally increasing at low temperatures with greater gains for higher moisture contents. Cyclic loading induced relatively minor fatigue damage in the concrete and should not affect the structural performance of an offshore containment structure.

    Keywords:

    lightweight concrete, cyclic fatigue, low temperature, mechanical properties, cryogenic temperatures, embedded strain gages, marine concrete, high-intensity cyclic loading, concrete


    Author Information:

    Berner, D
    Associate instructor and professors of civil engineeringengineer, University of CaliforniaBen C. Gerwick, Inc., BerkeleySan Francisco, CACA

    Gerwick, BC
    Associate instructor and professors of civil engineeringengineer, University of CaliforniaBen C. Gerwick, Inc., BerkeleySan Francisco, CACA

    Polivka, M
    Associate instructor and professors of civil engineeringengineer, University of CaliforniaBen C. Gerwick, Inc., BerkeleySan Francisco, CACA


    Paper ID: STP34206S

    Committee/Subcommittee: C09.21

    DOI: 10.1520/STP34206S


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