Conference paper
Monitoring of Corrosion Process in Structural Adhesive using Smart Materials
8th International Conference on Structural Health Monitoring of Intelligent Infrastructure (SHMII 2017): Structural Health Monitoring in Real-World Application (Brisbane, 05/12/2017 - 08/05/2021)
05/05/2021
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Abstract
The use of structural adhesives, such as epoxy, for the strengthening and repair of civil infrastructure is gaining popularity in the engineering community. Of particular concern to the viability of intervention measure is the degradation of strength and durability of the epoxy over time, especially when exposed to aggressive environments. Monitoring the corrosion process of epoxy is thus essential to ensure safety of the host structure. In this paper, the electromechanical impedance (EMI) technique that employs a smart piezoelectric transducer is used to monitor the degradation process of commercially available epoxy when exposed to corrosive environments. Standard epoxy coupons with surface bonded piezoelectric transducer are prepared and then immersed in either acidic or saline conditions in the laboratory. Experimental results show that the change in frequency of resonance peaks in the admittance signatures versus the frequency spectrum is a good indicator of the corrosion process. This study proves that the EMI technique is effective in characterising the severity of corrosion inflicted on the epoxy. The capability of the EMI technique in providing autonomous, real-time, remote monitoring with quick response using non-intrusive active sensors could potentially replace its conventional counterparts.
Details
- Title
- Monitoring of Corrosion Process in Structural Adhesive using Smart Materials
- Creators
- Yee Yan Lim - Southern Cross UniversityIman Izadgoshasb - Southern Cross UniversityScott Thomas Smith - Southern Cross University
- Conference
- 8th International Conference on Structural Health Monitoring of Intelligent Infrastructure (SHMII 2017): Structural Health Monitoring in Real-World Application (Brisbane, 05/12/2017 - 08/05/2021)
- Identifiers
- 991012928099302368
- Academic Unit
- Engineering; Faculty of Science and Engineering; National Centre for Flood Research
- Language
- English
- Resource Type
- Conference paper