Corrosion behaviour at the interface of steel bars embedded in cement slurries

Cyclic voltammetry has been employed to investigate the behaviour of carbon steel and stainless steel electrodes in solutions obtained by filtering of calcium aluminate cement and portland cement slurries. Electro-polymerized phenol coating on steel electrodes has also been studied in carbonate medium. The phenol electro-polymerization occurs on a passivated surface and leads to adherent and stable polymeric film exhibiting a partial protection against corrosion. The Fourier transform infrared–attenuated total reflection spectroscopy shows that this film maintains the aromatic character and contains ether-linked rings.