Effectiveness of pre-treatment method to hinder rebar corrosion in concrete

Etteyeb, N. and Sánchez, M. and Dhouibi, L. and Alonso Alonso, Maria Cruz and 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.

Description

Title: Effectiveness of pre-treatment method to hinder rebar corrosion in concrete
Author/s:
  • Etteyeb, N.
  • Sánchez, M.
  • Dhouibi, L.
  • Alonso Alonso, Maria Cruz
  • Takenouti, H.
  • Triki, E.
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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Abstract

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.

More information

Item ID: 8752
DC Identifier: http://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
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