Influence of green corrosion inhibitor on reinforced concrete attacked by magnesium sulphate. Malaysian Journal of Civil Engineering, 28 (2). pp. 73-87. ISSN 1823-7843 (2016)
Abstract
Sulphate attack is one of the phenomena that may cause gradual but severe damages to concrete structures durability. Sulphate attack is due to a series of chemical reactions between sulphate ions and principle components of the cement paste microstructure. In this work the effects of 1.5% and 4.5% MgSO4additions on concrete durability of 0.45 and 0.65 water/cement ratios (w/c) and the residual effects on corrosion of steel reinforcement were investigated using concrete resistivity. The results shows that 2% addition of Bambusa arundinacea green inhibitor improved the concrete resistivity of MgSO4contamination concrete by 54% and 64% for0.45 and 0.65w/c ratios respectively. Thus comparatively, Bambusa arundinacea in hibitor performed far better than Calcium nitrite, Ethanolamine inhibitors and even the non-contaminated control sample. This confirmed a linear relationship between concrete resistivity and probability of corrosion in concrete. Concrete resistivity has proven to be effective parameter for the estimation of the risk of steel reinforcement in concrete.
| Item Type: | Article |
|---|---|
| Keywords: | Sulphate attack, Concrete resistivity, Green inhibitor, Corrosion |
| Taxonomy: | By Subject > College of Engineering > Civil Engineering > Structural and Material |
| Local Content Hub: | Subjects > College of Engineering |
| Depositing User: | Eza Eliana Abdul Wahid |
| Date Deposited: | 23 Nov 2022 08:00 |
| Last Modified: | 23 Nov 2022 08:00 |
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