Open AccessModelling Total-corrosion Behaviour of Reinforcing-steel in 3.5% NaCl-immersed Concrete with Cymbopogon citratus leaf-extract admixture
Author(s) -
Joshua Olusegun Okeniyi,
Elizabeth Toyin Okeniyi,
O. O Joseph,
Solomon O. Banjo,
M. E. Ojewumi
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1107/1/012215
Subject(s) - cymbopogon citratus , corrosion , materials science , reinforced concrete , metallurgy , composite material , chemistry , essential oil , chromatography
In this paper, the total-corrosion behaviour of reinforcing-steel embedment in concrete samples, having Cymbopon citratus ( C. citratus ) leaf-extract admixture, and which were immersed in 3.5% NaCl (a saline/marine simulating environment) is investigated. Electrochemical data of macrocell current measurements were obtained, as an easy to undertake corrosion monitoring technique, from the steel-reinforced concrete specimens, that had been admixed with different concentrations of the C. citratus leaf-extract, before being immersed in the corrosive test-medium. The obtained data were then rendered to prescribed specification from ASTM G109 for the modelling of the total-corrosion prevailing in the reinforcing-steel within the concrete test-samples. Results obtained showed that C. citratus leaf-extract admixture in the concrete samples led to reduction in the total-corrosion of the reinforcing-steel, and, especially, in agreements with previous works where other types of electrochemical monitoring techniques had been employed.