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Pro084-2

Approaches for modeling the residual service life of marine concrete structures after repair



Author(s): A.Rahimi, C. Gehlen, T. Reschke
Paper category: Proceedings
Book title: Proceedings of the Seventh International Conference on Concrete under Severe Conditions – Environment and Loading
Editor(s): Z.J. Li, W. Sun, C.W. Miao, K.Sakai, O.E. Gjřrv, N.Banthia
ISBN: 978-2-35158-124-7
e-ISBN: 978-2-35158-134-6
Publisher: RILEM Publications SARL
Publication year: 2013
Pages: 673-685
Total Pages: 13
Language : English


Abstract: This work provides an introduction to the methodology of the service life design of reinforced concrete structures in a marine environment after application of a concrete repair measure. A simplified mathematical model of chloride diffusion in a two-layer system is presented. Preliminary numerical calculations demonstrate the effect of various conditions on the residual service life. First studies on chloride diffusion in a two-layer system have been conducted using the Finite Element Method. Results of a long-term exposure test are presented.
The content and gradient of residual chlorides along with the thickness and the chloride ingress resistances of both remaining and new layers of cover will determine the residual service life of repaired structures.


Online publication : 2013
Publication type : full_text
Public price (Euros) : 0.00


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