Temporal and Spatial Evolution of Acoustic Emission in the Damage Process of Reinforced Concrete Column

Abstract:

To study the whole process of fracture and damage of reinforced concrete column, temporal and spatial evolution of acoustic emission in the damage process of reinforced concrete column were tested. The results show that AE events of corroded column were much more during the whole loading process than that of the none-corroded one due to reinforcement corrosion. At the same loading speed, the corroded column was failed earlier than the none-corroded one. AE can obtain the internal temporal and spatial evolution damage parameters of the reinforced concrete members before the macro crack visible. The AE results were in well agreement with the brittle failure of both corroded and none-corroded columns. 3D location of AE events can directly reflect the fracture and failure process of reinforced concrete column but its accuracy needs further study.

• Periodical: Applied Mechanics and Materials (Volumes 638-640)
• Pages: 275-278
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.638-640.275
• Online since: September 2014
• Authors: Qiang Li*, Zhong Gou Chen, Dan Wu
• Keywords: Acoustic Emission, Corrosion, Mechanical Property, Reinforced Concrete Column

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