STP713: Critique of Testing Procedures Related to Measuring the Performance of Galvanized Steel Reinforcement in Concrete

    Cornet, I
    Professors emeritus, Department of Mechanical Engineering and Department of Civil Engineeringprincipal, University of CaliforniaWiss, Janney, Elstner and Associates, Inc., BerkeleyEmeryville, Calif.Calif.

    Bresler, B
    Professors emeritus, Department of Mechanical Engineering and Department of Civil Engineeringprincipal, University of CaliforniaWiss, Janney, Elstner and Associates, Inc., BerkeleyEmeryville, Calif.Calif.

    Pages: 36    Published: Jan 1980


    Abstract

    Laboratory investigations of the corrosion performance of galvanized steel and of black steel in concrete show inconsistencies, poor correlation between field performance and accelerated laboratory tests, and even a lack of theoretical justification and understanding of modeling principles in testing.

    This critique examines factors which influence the relationships between test results and prototype performance: loading, environment, geometry, and materials. Laboratory investigations of corrosion of black and of galvanized steel in concrete are reviewed. Bond characteristics, ductility, strength, and fatigue strength of galvanized reinforcement are presented. Field performance is discussed.

    Emphasis is placed on planning of field and laboratory tests. Four primary requirements are proposed: structural integrity, functional integrity, durability, and aesthetic appearance. There are no standardized or widely accepted test procedures to evaluate corrosion performance of reinforcing or prestressing steel in concrete exposed to aggressive environments.

    Keywords:

    testing procedures, corrosion performance, galvanized steel reinforcement in concrete, accelerated tests


    Paper ID: STP27475S

    Committee/Subcommittee: G01.07

    DOI: 10.1520/STP27475S


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