Corrosion modifies the steel-concrete interface in reinforced concrete structures. Moreover in structures subjected to cyclic load, a simultaneous mechanical deterioration due to the load is present. Both phenomena can lead to an evolution of cracks width during the service life. In order to evaluate the crack openings increase, an experimental campaign on reinforced concrete ties subjected to simultaneous loading and corrosion have been realized. Transversal crack opening, initially due to loading and longitudinal corrosion cracks evolution is monitored. Results highlight the differences in terms of corroded and uncorroded specimens, static and cycling test and also different loading amplitude. Finally it can be observed as the growing of the damage is significantly different when a cycling action, combined with a chemical attack is present.

Crack width evolution of R/C structures subject to corrosion and fatigue / Giordano, Luca; Tondolo, Francesco. - ELETTRONICO. - 452-453:(2010), pp. 417-420. ((Intervento presentato al convegno 9th International Conference on Fracture and Damage Mechanics [10.4028/www.scientific.net/KEM.452-453.417].

Crack width evolution of R/C structures subject to corrosion and fatigue

GIORDANO, Luca;TONDOLO, FRANCESCO
2010

Abstract

Corrosion modifies the steel-concrete interface in reinforced concrete structures. Moreover in structures subjected to cyclic load, a simultaneous mechanical deterioration due to the load is present. Both phenomena can lead to an evolution of cracks width during the service life. In order to evaluate the crack openings increase, an experimental campaign on reinforced concrete ties subjected to simultaneous loading and corrosion have been realized. Transversal crack opening, initially due to loading and longitudinal corrosion cracks evolution is monitored. Results highlight the differences in terms of corroded and uncorroded specimens, static and cycling test and also different loading amplitude. Finally it can be observed as the growing of the damage is significantly different when a cycling action, combined with a chemical attack is present.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2414117
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