ABSTRACT
Exposure of concrete structures to chloride-bearing solutions such as sea water or de-icing salts brine can affect their durability to stand against deterioration caused by corrosion of steel reinforcement. In order to monitor the chloride ingress into concrete, embedded chloride sensors can be used in concrete structures. Through the sensors, they monitor the initiation of corrosion of steel reinforcement with time, and measure the open circuit potential and polarisation of steel reinforcement, humidity inside the concrete, chloride content and many more. This paper provides an overview of the latest development of chloride permeation measurement in concrete by evaluating the current techniques being used in industry and highlighting a new approach to monitor chloride ion progress in concrete structures wirelessly.
Disclosure statement
No potential conflict of interest was reported by the authors.
ORCID
Han Seung Lee http://orcid.org/0000-0001-9776-5859
Mohamed A. Ismail http://orcid.org/0000-0001-5059-4220
Jitendra Kumar Singh http://orcid.org/0000-0002-8006-4076
Jun Ho Shin http://orcid.org/0000-0002-4376-1972