Effect of C5H11NO2S on Reinforcing-Steel Corrosion in Concrete Immersed in Industrial/Microbial Simulating-Environment

Okeniyi, Joshua Olusegun; Abioye, Abiodun Oyekola; Adikpewun, Zechariah Chiwonsoko; Otesanya, Adeola Abigail; Eleshin, Michael Damilola; Gabriel, Olanrewaju Oyewale; Adeoye, Oluyori

doi:10.1007/978-3-319-52132-9_19

Cited by 7 publications

(3 citation statements)

References 43 publications

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“…For ascertaining whether the duplicated raw data of absorbance measurements from each system of crude oil polluted soil design exhibited significant difference, or otherwise, from one another, the analytical method of the Student's t-test statistics was applied to the data [24,[36][37][38]. For this betweenduplicate test-of-significance statistical technique, the homeoscedastic (equal variance) and the heteroscedastic (unequal variance) assumptions [38][39][40][41] were employed as between-duplicate data validation tool [25]. The test-of-significance threshold for the t-test statistics is at p ≥ 0.05.…”

Section: Methodsmentioning

confidence: 99%

Bioremediation: Data on biologically-mediated remediation of crude oil (Escravos Light) polluted soil using Aspergillus niger

Ojewumi

Okeniyi

et al. 2018

Chemical Data Collections

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Section: Methodsmentioning

confidence: 99%

Bioremediation: Data on biologically-mediated remediation of crude oil (Escravos Light) polluted soil using Aspergillus niger

Ojewumi

Okeniyi

et al. 2018

Chemical Data Collections

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“…These steel-reinforced concrete samples have concentrations, with respect to concrete mixing water, of I. gabonensis leaf-extract admixture ranging from 0.00 g/L (control) in increments of 1.67 g/L up to 8.33 g/L. As per ASTM G16-95 R04 [35], corrosion rate dataset from each sample was subjected to the statistical analyses of the Weibull probability distribution function (pdf) [36][37][38], and test of dataset compatibility to the pdf by the Kolmogorov-Smirnov goodness-of-fit statistics [36,[39][40]. Based on these, the Weibull mean, μ, of corrosion rate from these statistical analyses thus finds usefulness for inhibition efficiency, η, estimation using the relationship [30,[36][37]:…”

Section: Methodsmentioning

confidence: 99%

Understanding Eco-Friendly Anticorrosion Prospect on Steel-Reinforcement in NaCl-Immersed Concrete from Biochemical Characterization of Irvingia Gabonensis Leaf

Okeniyi¹,

Popoola²

2017

Contributed Papers From MS&T17

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Different characterization techniques were employed for understanding anticorrosion prospect of Irvingia gabonensis leaf-extract on steel-reinforcement. FTIR spectroscopy showed that this leaf-extract is constituted of N-, SO O-, Hg-containing heteroatoms having π-electron ligands that usually exhibit affinity for steel-rebar Fe constituent. AAS indicates Irvingia gabonensis leaf inorganic composition includes Ni, Cu, Cd, Fe, but neither Pb nor Cr, and with the low/non-toxic heavy metal levels supporting the natural-plant's eco-friendliness. Phytochemical-screening showed that the leaf-extract is rich in glycosides (known for steel corrosion-protection in NaCl) and in saponnins, with traces of flavonoids, stenoids and terpenoids. Anticorrosion prospect investigation, via the leaf-extract admixture in 3.5% NaCl-immersed steel-reinforced concretes, showed that corrosion-inhibition performance increased with increasing leaf-extract concentrations. By statistical modeling of the electrochemical/corrosion test-data, the lower Irvingia gabonensis leaf-extract concentrations aggravated corrosion, indicating insufficient admixture usage, while the higher concentrations exhibited η > 80% corrosioninhibition efficiencies, suggesting sufficient bio-constituent combinations for corrosion-mitigation.

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“…Among these corrosion mitigation methods, the corrosion inhibitor admixture in concrete is receiving great attention because it is among the most cost-effective and easily applied technique of tackling concrete steel-rebar corrosion in aggressive environments [14, 19, 22, 23, 29, 30, 40, 41]. However, problems persist on corrosion inhibitor usage, especially, due to the fact that well-known substances for inhibiting corrosion of steel-rebar, such as chromates and nitrites, also exhibited toxicity and hazardousness to the environmental ecosystems [41–43].…”

Section: Introductionmentioning

confidence: 99%

Anticorrosion Behaviour ofRhizophora mangleL. Bark-Extract on Concrete Steel-Rebar in Saline/Marine Simulating-Environment

Okeniyi

Ikotun

Akinlabi

et al. 2019

The Scientific World Journal

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This paper investigates anticorrosion behaviour of the bark-extract from Rhizophora mangle L. on steel-rebar in concrete slabs in 3.5% NaCl medium of immersion (for simulating saline/marine environment). Corrosion-rate, corrosion-current, and corrosion-potential were measured from the NaCl-immersed steel-reinforced concrete cast with admixture of different plant-extract concentrations and from positive control concrete immersed in distilled water. Analyses indicate excellent mathematical-correlation between the corrosion-rate, concentration of the bark-extract admixture, and electrochemical noise-resistance (ratio of the corrosion-potential standard deviation to that of corrosion-current). The 0.4667% Rhizophora mangle L. bark-extract admixture exhibited optimal corrosion-inhibition performance, η = 99.08±0.11% (experimental) or η = 97.89±0.24% (correlation), which outperformed the positive control specimens, experimentally. Both experimental and correlated results followed Langmuir adsorption isotherm which suggests prevalent physisorption mechanism by the plant-extract on the reinforcing-steel corrosion-protection. These findings support Rhizophora mangle L. bark-extract suitability for corrosion-protection of steel-rebar in concrete structure designed for immersion in the saline/marine environmental medium.

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Effect of C5H11NO2S on Reinforcing-Steel Corrosion in Concrete Immersed in Industrial/Microbial Simulating-Environment

Cited by 7 publications

References 43 publications

Bioremediation: Data on biologically-mediated remediation of crude oil (Escravos Light) polluted soil using Aspergillus niger

Bioremediation: Data on biologically-mediated remediation of crude oil (Escravos Light) polluted soil using Aspergillus niger

Understanding Eco-Friendly Anticorrosion Prospect on Steel-Reinforcement in NaCl-Immersed Concrete from Biochemical Characterization of Irvingia Gabonensis Leaf

Anticorrosion Behaviour ofRhizophora mangleL. Bark-Extract on Concrete Steel-Rebar in Saline/Marine Simulating-Environment

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