Remote corrosion monitoring of the RC structures using the electrochemical wireless energy-harvesting sensors and networks

Essentially, the corrosion process of the steel bar in reinforcing concrete structures is a series of electrochemical reactions. Therefore, the released energy during these reactions provides the opportunities to identify the corrosion status and power the wireless corrosion monitoring sensors. Furthermore, the recognition of the corrosion status has been realized with active monitoring techniques (AMTs) and passive monitoring techniques (PMTs). Additionally, the sensor mote platform that harvests the corrosion energy has been designed for corrosion monitoring, and then how to network these sensors to remotely access the corrosion data has been discussed. The preliminary experiment has been conducted to validate the micro corrosion energy.

► Energy is released in the corrosion process as power source. ► The energy-harvesting sensor is designed for corrosion monitoring. ► The network used to remotely access the corrosion data is developed.