Corrosion Behavior of Stainless Steel Rebars Embedded in Concrete: an Electrochemical Impedance Spectroscopy Study

Welded, sandblasted, stainless steel corrugated bars in non-carbonated and carbonated mortars: A 9-year corrosion study

“…It has also been used to simulate the behavior of non-welded stainless steel reinforcements in mortar when the system was passive [27]. Although other circuits have also been proposed for similar systems in the literature [23], this one has been considered the most adequate by the authors.…”

“…In this work, the effect of welding in 3 different corrugated stainless steels in mortar is studied: an austenitic UNS S30403 grade (the composition with the longest and widest experience about its behavior in concrete [22,23]), an austenitic UNS S20430 grade (that has been considered interesting because of its price and its moderate corrosion resistance in synthetic pore solution testing [5,24]) and a duplex UNS S32205 grade (that has shown very high corrosion resistance in previous tests [1,25]). The 3 corrugated stainless steels were welded to similar materials and to CS bars, their welding oxides were cleaned by sandblasting, and then they were embedded in mortar and exposed to high relative humidity (90-93%).…”

Electrochemical Impedance Spectroscopy to Study the Carbonation Behavior of Concrete Treated with Corrosion Inhibitors

“…Despite from the wide use of EIS for analyzing the corrosion rate and reaction at the steel-concrete interface (Ismail and Ohtsu 2006;Duarte et al 2014), little research has been performed with regards to prediction of carbonation behavior of concrete by using EIS . As EIS can be performed in-situ also, thus there is a need to look into the potential of EIS in carbonation depth prediction.…”

“…Electrochemical impedance spectroscopy has been used by various researchers as an effective method to provide information regarding microstructure of concrete, corrosion rate and reaction at the steel-concrete interface Dhouibi et al 2002;Ismail and Ohtsu 2006;Duarte et al 2014, Montemor et al 2002Ribeiro and Abrantes 2016;Braganca et al 2014;Criado et al 2012;Trabanelli et al 2005). Electrochemical impedance spectroscopy involves the analysis of the material by applying an alternating current signal to a sweep of frequencies (Braganca et al 2014).…”

Nano Structure of the Rust Formed on Chromium Bearing Steel in Concrete after Wet and Dry Corrosion Test

“…Thus, it is important to investigate new reinforcing steels that are more corrosion resistant than carbon steel in concrete. Despite its excellent corrosion resistance, [1][2][3] stainless steel has not been widely used due to its high cost. Hence, various chromium bearing steels have been developed for reinforcing steels.…”