University Links: Home Page | Site Map
Covenant University Repository

Total-Corrosion Effects of Anthocleista Djalonensis and Na2Cr2O7 on Steel-Rebar in H2So4: Sustainable Corrosion-Protection Prospects in Microbial/Industrial Environment

Okeniyi, Joshua Olusegun and Loto, Cleophas Akintoye and Idowu Popoola, Abimbola Patricia (2016) Total-Corrosion Effects of Anthocleista Djalonensis and Na2Cr2O7 on Steel-Rebar in H2So4: Sustainable Corrosion-Protection Prospects in Microbial/Industrial Environment. In: Rewas 2016: Towards Materials Resource Sustainability. John Wiley & Sons, Inc., Hoboken, New Jersey, USA. , pp. 187-192. ISBN 9781119275039

Full text not available from this repository. (Request a copy)

Abstract

This paper studies total-corrosion effects of Anthocleista djalonensis (green natural-plant) and Na2Cr2O7 (well-known inhibitor, but environmentally-hazardous chemical) on steel-reinforcement in concrete immersed in 0.5 M H2SO4, simulating microbial/industrial environment. Equal-mass models of the plant leaf-extract and of Na2Cr2O7 were employed as admixtures in steel-reinforced concrete samples immersed in the test-system, from which macrocell corrosion measurements were obtained and analysed as per ASTM G109-99a. Results showed that only the 3.33 g/L Anthocleista djalonensis, among the equal-mass models of leaf-extract and the chemical admixtures, was outperformed by the 3.33 g/L Na2Cr2O7 in total corrosion reduction effects. In the study, 5.00 g/L Anthocleista djalonensis exhibited optimal effectiveness, = 93.77%, on the total-corrosion effect of concrete steel-reinforcement. The many Anthocleista djalonensis admixtures that exhibited better inhibition than Na2Cr2O7 admixtures indicates positive prospects of the plant as an eco-friendly and sustainable corrosion-protection alternative for the toxic chemical in microbial/industrial environment.

Item Type: Book Section
Uncontrolled Keywords: sustainable/eco-friendly corrosion inhibitor; macrocell corrosion measurement; total-corrosion analysis; concrete steel-reinforcement embedment; microbial/industrial simulating-environment; inhibition efficiency
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
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: 12 Aug 2016 10:01
Last Modified: 12 Aug 2016 10:01
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/6852

Actions (login required)

View Item View Item