Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Acoustic emission method as a diagnostic tool for corrosion cracking in reinforced concrete beams
The paper deals with acoustic emission evaluation of deterioration of reinforced concrete beams during flexural tests under repeated loadings. The beams were deteriorated due to accelerated corrosion of reinforcement. The tests demonstrated that acoustic emission is very sensitive to detect the initiation of tensile microcracks, main tensile cracks and internal cracks generated near the interface between the reinforcement and concrete. They were revealed that the deteriorated beams exhibit different acoustic emission behaviour, depending on the different damage levels induced by the corrosion of the reinforcement. Acoustic emission parameter analysis showed that a Felicity ratio, the ratio of the load at onset of acoustic emission and the maximum prior load, is a very effective criterion to measure the severity of damage induced in the reinforced concrete beams. High acoustic emission activity during unloading was also shown to be an effective index to estimate the deterioration of reinforced concrete beams due to corrosion of reinforcement.
Acoustic emission method as a diagnostic tool for corrosion cracking in reinforced concrete beams
The paper deals with acoustic emission evaluation of deterioration of reinforced concrete beams during flexural tests under repeated loadings. The beams were deteriorated due to accelerated corrosion of reinforcement. The tests demonstrated that acoustic emission is very sensitive to detect the initiation of tensile microcracks, main tensile cracks and internal cracks generated near the interface between the reinforcement and concrete. They were revealed that the deteriorated beams exhibit different acoustic emission behaviour, depending on the different damage levels induced by the corrosion of the reinforcement. Acoustic emission parameter analysis showed that a Felicity ratio, the ratio of the load at onset of acoustic emission and the maximum prior load, is a very effective criterion to measure the severity of damage induced in the reinforced concrete beams. High acoustic emission activity during unloading was also shown to be an effective index to estimate the deterioration of reinforced concrete beams due to corrosion of reinforcement.
Acoustic emission method as a diagnostic tool for corrosion cracking in reinforced concrete beams
Schallemissionsverfahren als ein Diagnosewerkzeug zur Risskorrosion in Stahlbetonträgern
Korenska, M. (Autor:in) / Pazdera, L. (Autor:in) / Pospisil, K. (Autor:in) / Manychova, M. (Autor:in)
2004
5 Seiten, 5 Bilder, 3 Quellen
Aufsatz (Konferenz)
Datenträger
Englisch
Acoustic Emission Method as a Diagnostic Tool for Corrosion Cracking in Reinforced Concrete Beams
| British Library Conference Proceedings | 2004
| BASE | 2014
| British Library Online Contents | 2014