Please use this identifier to cite or link to this item: http://localhost:8080/xmlui/handle/123456789/4415
Title: IMPLICATIONS OF ECO-ADDITION INHIBITOR TO MITIGATE CORROSION IN REINFORCED STEEL EMBEDDED IN CONCRETE
Authors: Rajan, Anitha
Subramanian, Chitra
Venkatesan, Hemapriya
Ill-Min, Chung
Seung-Hyun, Kim
Mayakrishnan, Prabakaran
Issue Date: Jul-2019
Publisher: Elsevier
Abstract: The deleterious and entanglement of synthetic inhibitors provokes a platform for assessment of Rosa damascena (R. damascena) leaves as a green corrosion inhibitor on reinforced steel rebar. The inhibitory action was realised by electrochemical impedance spectroscopy and polarisation studies in simulated pore solution. Electrochemical measurements showed that the charge transfer resistance increases as the concentration of acid and ethanol extracts of R. damascena increases. Tafel polarisation curves divulge that the potential is shifted towards positive side evincing the nobility of the inhibitor. The experimental model for adsorption obeyed Langmuir adsorption isotherm disclosing the physisorption behaviour. The maximum protection efficiency is 82% at a concentration of 12 v/v %. SEM images stipulates the chelating effect of phytochemical constituents containing hetero atoms such as O, N, aromatic rings and π-electrons interacting with iron ions resulting in the shielding of the metal from corrosion.
URI: https://doi.org/10.1016/j.conbuildmat.2019.04.046
Appears in Collections:2.Article (73)

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