Detection and Monitoring of Cracks in Reinforced Concrete Using an Elastic Sensing Skin

2019 ◽  
Author(s):  
Jin Yan ◽  
Austin Downey ◽  
Alessandro Cancelli ◽  
Simon Laflamme ◽  
An Chen
Keyword(s):  
Reinforced Concrete ◽  
Sensing Skin

A functionally layered sensing skin for the detection of corrosive elements and cracking

2016 ◽  
Vol 16 (2) ◽  
pp. 215-224 ◽  
Author(s):  
Aku Seppänen ◽  
Milad Hallaji ◽  
Mohammad Pour-Ghaz
Keyword(s):  
Reinforced Concrete ◽  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Electrical Impedance ◽  
The Other ◽  
Reinforced Concrete Structures ◽  
Impedance Tomography ◽  
Sensing System ◽  
Surface Sensing ◽  
Sensing Skin

In this paper, we propose an electrical impedance tomography (EIT)-based multifunctional surface sensing system, or sensing skin, for structural health monitoring. More specifically, the EIT-based sensing skin is developed for detecting and localizing the ingress of chlorides and cracking: two phenomena which are of concern in many structures, including reinforced concrete structures. The multifunctional sensing skin is made of two layers: one layer is sensitive to both chlorides and cracking, and the other layer is sensitive to cracking only. In the experiments, the sensing skin is tested on a polymeric and concrete substrate. The results demonstrate the feasibility of using the multifunctional multi-layer sensing skin for detecting and localizing corrosive elements and cracking, and for distinguishing between them.

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