Inhibiting behavior of nitrites in corrosion of reinforcing steel in basic solutions simulating the electrolytic environments of micropores concrete in the initiation period

Garcés Esteban, Pablo and Zornoza, E. and Andrade Perdrix, María del Carmen and Saura, P. (2010). Inhibiting behavior of nitrites in corrosion of reinforcing steel in basic solutions simulating the electrolytic environments of micropores concrete in the initiation period. In: "6th international conference on concrete under severe conditions (CONSEC '10)", 07/06/2010 - 09/06/2010, Mérida, Yucatán, Méjico. ISBN 978-0-415-59318-2.

Description

Title: Inhibiting behavior of nitrites in corrosion of reinforcing steel in basic solutions simulating the electrolytic environments of micropores concrete in the initiation period
Author/s:
  • Garcés Esteban, Pablo
  • Zornoza, E.
  • Andrade Perdrix, María del Carmen
  • Saura, P.
Item Type: Presentation at Congress or Conference (Article)
Event Title: 6th international conference on concrete under severe conditions (CONSEC '10)
Event Dates: 07/06/2010 - 09/06/2010
Event Location: Mérida, Yucatán, Méjico
Title of Book: Proceedings of the 6th international conference on concrete under severe conditions (CONSEC '10)
Date: 2010
ISBN: 978-0-415-59318-2
Subjects:
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Measurements of the corrosion rate of corrugated steel bars have been carried out in solutions simulating electrolitic chloride enviroments in the micropores of concrete in the initiation period. It has been studied the effect of sodium nitrite as a corrosion inhibitor when added to the mentioned solutions. The solutions for the experiments were prepared by addition of different volumes of FeCl2 0.2 M into a saturated solution of calcium hydroxide until the target pH was reached in each case. This is the soluble compound produced during the corrosion of steel as a result of chloride attack.. It has been observed a significant improvement in using nitrite as inhibiting agent in these systems, but its efficiency decreases when the pH is reduced. The corrosion seems to be related to the [Cl - ]/[OH - ] ratio in three different regions of pH identified from acid to alkaline pH values

More information

Item ID: 9323
DC Identifier: http://oa.upm.es/9323/
OAI Identifier: oai:oa.upm.es:9323
Deposited by: Memoria Investigacion
Deposited on: 27 Oct 2011 09:12
Last Modified: 14 May 2020 08:33
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