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
