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Application of Yttrium oxide (Y2O3) nanoparticle for the mortar strength and corrosion resistance of rebar inside it: A potential strategy for strengthening water collection systems
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Fatemeh Abdi *    |
| Associate Professor, Department of Advanced Science, Faculty of Advanced Technologies, University of Mohaghegh Ardabili, Namin, Iran |
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Abstract: (102 Views) |
| Recently, nanotechnology has received wide applications in environmental health and sustainable water management. Besides, global drinking water shortages lead to the construction of different water collection systems. Therefore, considering that the corrosion of rebar inside concrete structures, especially in areas with acid rain and water structures, is an essential requirement. To this end, in the current research to investigate the effect of nanoparticles on the strength of the mortar and the corrosion resistance of the rebar inside it, Yttrium oxide (Y2O3) nanoparticles were used. Yttrium oxide (Y2O3) nanoparticles were added to the mortar with one weight percent of the cement weight. The strength of the mortar was investigated by measuring the 7-day and 28-day compressive and bending strengths, and the corrosion resistance of the rebar inside the mortar was checked by measuring the polarization and Electrochemical Impedance Spectroscopy (EIS) tests in a 3.5% salt solution. The results showed that Y2O3 nanoparticles increase the strength of the mortar by increasing the compressive and bending resistances. In addition, the result of the polarization test showed that this nanoparticle increases the corrosion resistance by reducing the corrosion tendency and corrosion rate. By examining the results of the EIS test, the reason for the decrease in the corrosion rate was attributed to the increase in the impedance of the mortar. Finally, conserving the water collection systems or watershed management infrastructures using Y2O3 is the suggestion of this research as a new technological-based solution against corrosion conditions. |
Article number: 6 |
| Keywords: Electrical impedance, corrosion, structure strength, water |
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Full-Text [PDF 1170 kb]
(33 Downloads)
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Type of Study: Research |
Subject:
General
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