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Etteyeb, N., Sánchez, M., Dhouibi, L., Alonso Alonso, Maria Cruz, Takenouti, H. and Triki, E. (2010). Effectiveness of pre-treatment method to hinder rebar corrosion in concrete. "Corrosion Engineering Science and Technology", v. 45 (n. 6); pp. 435-441. ISSN 1478-422X. https://doi.org/10.1179/147842208X386313.
Title: | Effectiveness of pre-treatment method to hinder rebar corrosion in concrete |
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Author/s: |
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Item Type: | Article |
Título de Revista/Publicación: | Corrosion Engineering Science and Technology |
Date: | January 2010 |
ISSN: | 1478-422X |
Volume: | 45 |
Subjects: | |
Freetext Keywords: | Sodium Phosphate; Pre-treatment of rebars; Corrosion current density; EIS; Mortar. |
Faculty: | Otros Centros UPM |
Department: | Otro |
Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
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This paper aims to evaluate the ability of phosphate pretreatments applied on steel rebars to hinder the corrosion reinforcements using synthetic pore electrolyte and mortar contaminated by chloride ions. The electrochemical behaviour of the pretreated substrate was assessed by corrosion potential, polarisation resistance and electrochemical impedance spectroscopy measurements. The results have demonstrated that the treatment of the rebar by immersion in the Na3PO4 (0·5M) solution favours the formation of a passive layer on the steel rebar surface, which increases the resistance to corrosion initiation up to 0·3M Cl– instead of 0·1M Cl– without treatment. The pretreatment also provides enhancement of corrosion protection of the steel rebar in mortar. The evolution of the impedance spectra in function of chloride concentration is in a fairly good agreement with the results obtained from RP measurements.
Item ID: | 8752 |
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DC Identifier: | https://oa.upm.es/8752/ |
OAI Identifier: | oai:oa.upm.es:8752 |
DOI: | 10.1179/147842208X386313 |
Official URL: | http://www.maney.co.uk/ |
Deposited by: | Memoria Investigacion |
Deposited on: | 01 Dec 2011 09:34 |
Last Modified: | 20 Apr 2016 17:25 |