Bio-characterisation of Solanum aethiopicum leaf: prospect on steel-rebar total-corrosion in chloride-contaminated-environment
by Joshua Olusegun Okeniyi; Elizabeth Toyin Okeniyi; Taiwo Felicia Owoeye
Progress in Industrial Ecology, An International Journal (PIE), Vol. 10, No. 4, 2016

Abstract: This paper investigates biochemical constituents of Solanum aethiopicum leaf, for its prospect on the total-corrosion reduction of concrete steel-rebar in the chloride-contaminated environment. Atomic absorption spectroscopy (AAS) and Fourier transform infra-red (FTIR) spectroscopy were used for assessment of inorganic and organic constituents of the leaf. Steel-rebar total-corrosion was analysed, as per ASTM G109-99a, from macrocell-current measurements in 3.5% NaCl-immersed steel-reinforced concrete samples that were admixed with different concentrations of the Solanum aethiopicum leaf-extract. By AAS, Solanum aethiopicum leaf was characterised of inorganic constituents Fe = 4645.50 μg/g, Pb = 74.1138 μg/g, Ni = 43.1162 μg/g, Cd = 6.8425 μg/g, Cu = 0.004581 μg/g and Cr = 0.0000 μg/g. By FTIR, the plant was characterised with S-, N-, O- (and a trace of Hg-) containing organic hetero-atoms. Also, the different concentrations of Solanum aethiopicum leaf-extract admixture studied reduced steel-rebar total-corrosion, with physisorption mechanism, in the 3.5% NaCl-immersed steel-reinforced concrete specimens relative to a sample without admixture.

Online publication date: Wed, 26-Apr-2017

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the Progress in Industrial Ecology, An International Journal (PIE):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com