Original scientific paper
https://doi.org/10.5599/jese.2975
Mango peel extract as a green inhibitor in the corrosion of reinforced concrete
Alejandro Flores-Nicolás
; Facultad de Ingenieria, Arquitectura y Diseño, Universidad Autonoma de Baja California, Carretera Transpeninsular Ensenada-Tijuana,3917, Playitas, 22860, Ensenada, B.C. México
*
Elsa Carmina Menchaca-Campos
; Centro de Investigación en Ingenieria y Ciencias Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca C.P. 62209, MOR, México
Mario Flores-Nicolás
; Instituto de Ciencias Básicas e Ingeniería, Universidad Autónoma del Estado de Hidalgo, Carr. Pachuca - Tulancingo Km. 4.5, Carboneras, 42184, Mineral de la Reforma, Hidalgo, Mexico
* Corresponding author.
Abstract
Chloride-induced corrosion of reinforcing steel embedded in concrete is a problem that causes the elements to lose their physical and mechanical properties and can lead to premature failures in civil works. This research article analyses the effectiveness of the green corrosion inhibitor in cement paste through the ethanolic extract of mango peel. The materials were dosed with the inhibitor added to the mixing water and the mechanical properties of the material were analysed by manufacturing cylindrical test specimens. To understand the corrosion phenomena, cubic samples were prepared and immersed in a 3 % sodium chloride (NaCl) solution for 365 days, simulating a highly aggressive chloride-ion environment. Electrochemical techniques such as half-cell potential (HCP), electrochemical noise (EN), linear polarization resistance (LPR) and electrochemical impedance spectroscopy (EIS) are applied. The experimental results showed that the green corrosion inhibitor reduced the mechanical properties of concrete by 21.28 % compared to the blank, but a positive effect was observed in the corrosion evaluation. Initially, the inhibitor delayed the onset of corrosion, as indicated by high electrochemical noise and linear polarization resistance values due to the formation of a film of organic compounds present in the inhibitor extracts that acted on the active sites on the steel surface.
Keywords
Reinforcing steel; corrosion risks; localized corrosion; eco-friendly corrosion inhibitor; maceration; electrochemical techniques
Hrčak ID:
346202
URI
Publication date:
30.3.2026.
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