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Corrosion process in cracked reinforced concrete beams



Title: Corrosion process in cracked reinforced concrete beams
Author(s): Wei Tian, Peter Schießl
Paper category : conference
Book title: 2nd International Symposium on Service Life Design for Infrastructures
Editor(s): K. van Breugel, Guang Ye, Yong Yuan
Print-ISBN: 978-2-35158-096-7
e-ISBN: 978-2-35158-097-4
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 585 - 602
Total Pages: 18
Nb references: 9
Language: English


Abstract: Nowadays, huge costs expended on the maintaining and repairing of deteriorated concrete structures due to reinforcement corrosion have attracted public attention, hence research in corrosion modeling and durability design becomes practical and urgent. Based on this background, the German Research Foundation is funding the research group 537 "Modeling of reinforcement corrosion", which delicates to develop a probabilistic model for the propagation phase, since the model for the initiation phase has already been well established.
As a subproject, one of the project A3’s task focuses on the study of corrosion in cracked concrete. When cracks occur, corrosion will be encouraged by making the migration of aggressive substances, e.g., chloride, possible. To investigate the corrosion process in cracked concrete, laboratory tests are carried out on central cracked beams, in which a corrosion system with single anode and multiple cathodes is well designed. The beams are subjected to both chloride/water wetting cycle and natural exposures. Corrosion current and potential are chosen to be the basic research parameters. Data from 2 years daily measurement and destructive tests have been collected and analyzed.


Online publication: 2011-04-20
Publication type : full_text
Public price (Euros): 0.00