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  • 1
    Electronic Resource
    Electronic Resource
    Analysis of Chloride Penetration into the Corner Zone of Concrete Structure Member (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 348-349 (Sept. 2007), p. 397-400 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Chloride penetration into concrete is the main cause of steel corrosion in concretestructures exposed to chloride-rich environments. In general, conditions on the diffusion process aredominant among various penetration mechanisms, such as ionic diffusion, capillary sorption, and soon. In recent analysis of current literature, chloride diffusion is as a simplified one-dimensionaldiffusion process. However, for the rebar in the corner zone of concrete beam, the diffusion belongsto a two-dimensional diffusion. Based on a galerkin finite element method, a two-dimensionaldiffusion differential equation is built and solved numerically and the different chlorideconcentration is compared to one dimensional diffusion and two-dimensional diffusion process. Theservice life of concrete structure members under two-dimensional chloride penetration is predictedby compared with a critical threshold chloride concentration. Compared with generalone-dimensional chloride attack, the service life is considerably reduced in a corner zone due totwo-dimension penetration
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.348-349.397.pdf
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  • 2
    Electronic Resource
    Electronic Resource
    An Experimental Study on the Influence of Steel Bar Corrosion in the Structural Performanceof Bridge Piers (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 348-349 (Sept. 2007), p. 749-752 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Economic losses due to the corrosion of steel structures in concrete is almost about 4% ofGNP. It is almost 70 billion dollars in America. Also, The Korean economy is expected to experiencea 4～5% loss in GNP in the near future in by considering the industrial background that has beenformed by heavy industries. Although deteriorations in concrete structures demonstrate a highdiversity of factors, it finally comes down to the lowering of water resistance performance instructures based on the crack generation due to the corrosive expansion of steel bars. Thus, it is veryimportant to investigate the lowering of water resistance performance in structures according to thelevel of the corrosion in steel bars
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.348-349.749.pdf
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  • 3
    Electronic Resource
    Electronic Resource
    An Experimental Study on the Influence of Steel Rod Corrosion in Concrete Cracks (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 348-349 (Sept. 2007), p. 773-776 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The purpose of this study is to define the amount of critical corrosion in steel that causescracks on the cover of concrete. Major variables in the amount of critical corrosion are concretestrength, thickness, and the cover of concrete. In this experiment, stress concentration is a newlyadded factor. According to the results of this experiment, it is evident that the amount of criticalcorrosion decreased according to the increase in stress concentration factors. In addition, electriccurrents were measured using a constant voltage generator. When a constant voltage was connectedto the corrosion circuits, it was discovered that the magnitude in the change was similar to thedisplacement on the cover of concrete and the electric current according to time.1)
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.348-349.773.pdf
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