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Morinda Lucida Effects on Steel-reinforced Concrete in 3.5% NaCl: Implications for Corrosion-protection of Wind-energy Structures in Saline/Marine Environments

Okeniyi, Joshua Olusegun and Loto, C. A. and Popoola, Abimbola Patricia Idowu (2014) Morinda Lucida Effects on Steel-reinforced Concrete in 3.5% NaCl: Implications for Corrosion-protection of Wind-energy Structures in Saline/Marine Environments. Energy Procedia, 50. pp. 421-428. ISSN 18766102

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Abstract

This paper studies effects of the leaf-extract of Morinda lucida on the corrosion-degradation of steel-reinforced concrete in 3.5% NaCl, simulating saline/marine environment (prevalent in offshore environments for wind-energy structures/installations). Electrochemical monitoring techniques and compressive-strength testing were employed for different concentrations of the leaf-extract admixture in duplicates of steel-reinforced concrete specimens, partially immersed in the corrosive-medium. Analyses of the experimental test-results according to specification ASTM G16-95 R04 showed that Morinda lucida leaf-extract combined highly-efficient corrosion inhibition, 84.82±7.76% ≤ η ≤ 95.64±1.50%, with good compressive-strength improvements in their admixed steel-reinforced concretes. These bear implications for corrosion-protection of wind-energy structures in saline/marine environments. © 2014 Elsevier Ltd.

Item Type: Article
Additional Information: Edited by Chafic Salame, Michel Aillerie and Panagiotis Papageorgas
Uncontrolled Keywords: Compressive strength change effects; Concrete steel-reinforcement; Corrosion inhibition efficieny; Non-toxic and environmentally-frendly admixture; Offshore saline/marine environment; Sustainable/durable wind-energy structures/ installations
Subjects: Q Science > Q Science (General)
Q Science > QA Mathematics
Q Science > QC Physics
Q Science > QD Chemistry
T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TD Environmental technology. Sanitary engineering
T Technology > TH Building construction
T Technology > TJ Mechanical engineering and machinery
T Technology > TP Chemical technology
Divisions: Faculty of Engineering, Science and Mathematics > School of Chemistry
Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment
Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Faculty of Engineering, Science and Mathematics > School of Mathematics
Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User: Dr Joshua Olusegun Okeniyi
Date Deposited: 15 Aug 2016 10:36
Last Modified: 31 Oct 2018 13:04
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/6867

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