Journals Proceedings

International Journal of Structural Analysis & Design

Analyses of Corrosion Potential from Inhibitor- Admixed Steel-Reinforced Concrete: Implication on Steel-Rebar Corrosion Risk/Probability

Author(s) : ABIMBOLA PATRICIA IDOWU POPOOLA, CLEOPHAS AKINTOYE LOTO, JOSHUA OLUSEGUN OKENIYI, KOLAWOLE OLUSEYI AJANAKU, OLUGBENGA ADESHOLA OMOTOSHO  , OLUSEYI OLANREWAJU AJAYI   

Abstract

Statistical analyses of three probability density functions, from Normal, Rayleigh and Weibull distributions, were applied for studying steel-rebar corrosion risk/probability in inhibitor admixed steel-reinforced concrete immersed in aggressive media of 3.0% NaCl and 0.5 M H2SO4. For these, different concentrations, ranging from 0 M to 0.29 M, of K2CrO4 were admixed in two-set steel-reinforced concrete with each set partially immersed in each of the aggressive test-solutions and which were monitored using open circuit potential techniques as per ASTM C876–91 R99. Analyses of the 30-days test-response from these showed that most of the corrosion test-data distributed like the Weibull and like the Normal distributions while just a few test-datasets distributed like the Rayleigh distribution, according to the Kolmogorov-Smirnov goodness-offit statistics. All the probability distribution fittings identified, in agreements, the 0.15 M K2CrO4 admixed steel-reinforced concrete with the least probability of corrosion risk in both of the acidic and the neutral saline test-solutions. These bear implications on the use of probability distribution analyses for economical monitoring of steel-rebar corrosion risk/probability and corrosion inhibitor admixture effects in steel-reinforced concrete in aggressive service-environments.

No fo Author(s) : 6
Page(s) : 10 - 14
Electronic ISSN : 2372-4102
Volume 2 : Issue 1
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