X.R. Nóvoa

TL;DR: In this paper, four series of reinforced concrete specimens have been studied over 3 years exposure in a 100% relative humidity atmosphere, and the results confirmed previous results obtained in alkaline medium, i.e., the redox activity in the rebar's oxides layer greatly influences the electrochemical behaviour of rebars in the passivity potential domain.

TL;DR: In this article, a low scan rate cyclic voltammetry performed over the entire electrolyte stability domain, allows for establishing the influence of the redox activity developing in the oxides layer on the electrochemical behaviour of the system and, thus, to get valuable information on the applicability of classical electrochemical techniques employed to assess corrosion of steel in concrete.

TL;DR: In this paper, the differential impedance analysis (DIA) has been applied to the study of the dielectric properties of hardened Portland cement paste, and two time constants are found in the impedance spectra obtained in the frequency region form 100 kHz to 15 MHz.

TL;DR: In this article, the EIS results obtained at the open-circuit corrosion potential have been interpreted using a model involving the impedance of particle to particle contact to account for the increasing resistance between zinc particles with immersion period, in addition to the impedance due to the zinc surface oxide layer and the electrical resistivity of the binder.

TL;DR: In this article, the authors focused on determining the origin of the time constants in the impedance and their relation to the dielectric properties of cement paste, and concluded that the interpretation of the high values of e in terms of the DAF effect does not seem correct.