Steel Bar corrosion monitoring based on encapsulated piezoelectric sensors

2017 2nd International Conference on Reliability Engineering

Xu, Ying^1 ; Tang, Tianyou^1

Shenzhen Key Urban and Civil Engineering Disaster Prevention and Reduction Laboratory, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen

518055, China^1

关键词: Corrosion monitoring;    Corrosion of steel bars;    Finite element simulations;    Piezoelectric sensors;    Relative amplitude;    Research results;    Structural durability;    Working performance;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/351/1/012002/pdf
DOI  :  10.1088/1757-899X/351/1/012002

来源: IOP

【 摘 要 】

The durability of reinforced concrete has a great impact on the structural bearing capacity, while the corrosion of steel bars is the main reason for the degradation of structural durability. In this paper, a new type of encapsulated cement based piezoelectric sensor is developed and its working performance is verified. The consistency of the finite element simulation and the experimental results shows the feasibility of monitoring the corrosion of steel bars using encapsulated piezoelectric sensors. The research results show that the corrosion conditions of the steel bars can be determined by the relative amplitude of the measured signal through the encapsulated piezoelectric sensor.