Behaviour of corroded steel in a Ca(OH)2-saturated solution and in cement mortar. Possibility of rehabilitation

The present study compared the response of rust-free and corroded steel electrodes in Ca(OH)2-saturated solutions and in cement mortar, essentially defined in terms of polarization resistance as measured with gravimetric, metallographic and electrochemical methods. Answers were sought for the follow...

Full description

Bibliographic Details
Main Authors: J. M. Miranda, E. Otero, J. A. González, L. S. Hernández
Format: Article
Language:English
Published: Consejo Superior de Investigaciones Científicas 2007-03-01
Series:Materiales de Construccion
Subjects:
Online Access:http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/35
_version_ 1818717552736468992
author J. M. Miranda
E. Otero
J. A. González
L. S. Hernández
author_facet J. M. Miranda
E. Otero
J. A. González
L. S. Hernández
author_sort J. M. Miranda
collection DOAJ
description The present study compared the response of rust-free and corroded steel electrodes in Ca(OH)2-saturated solutions and in cement mortar, essentially defined in terms of polarization resistance as measured with gravimetric, metallographic and electrochemical methods. Answers were sought for the following questions, which persist despite the use of reinforced concrete (RC) in building for over a century: At what corrosion rate is RC durability seriously compromised? Does restoration of the initial conditions in properly manufactured concrete guarantee repassivation of corroded steel? Does the use of inhibitors enhance repassivation? Does the nature of the corrosion products have any significant effect on the response of corroded steel reinforcement? The results obtained in indicated that the effectiveness of preventive methods is much more closely related to the degree of existing corrosion than to the nature of the corrosion products.
first_indexed 2024-12-17T19:36:58Z
format Article
id doaj.art-7da276fa80f24c24bf1c1abd2a313552
institution Directory Open Access Journal
issn 0465-2746
1988-3226
language English
last_indexed 2024-12-17T19:36:58Z
publishDate 2007-03-01
publisher Consejo Superior de Investigaciones Científicas
record_format Article
series Materiales de Construccion
spelling doaj.art-7da276fa80f24c24bf1c1abd2a3135522022-12-21T21:35:07ZengConsejo Superior de Investigaciones CientíficasMateriales de Construccion0465-27461988-32262007-03-015728551610.3989/mc.2007.v57.i285.3530Behaviour of corroded steel in a Ca(OH)2-saturated solution and in cement mortar. Possibility of rehabilitationJ. M. Miranda0E. Otero1J. A. González2L. S. Hernández3Instituto de Metalurgia, UASLP, México.Centro Nacional de Investigaciones Metalúrgicas, CENIM (CSIC), MadridCentro Nacional de Investigaciones Metalúrgicas, CENIM (CSIC), MadridInstituto de Metalurgia, UASLP, México.The present study compared the response of rust-free and corroded steel electrodes in Ca(OH)2-saturated solutions and in cement mortar, essentially defined in terms of polarization resistance as measured with gravimetric, metallographic and electrochemical methods. Answers were sought for the following questions, which persist despite the use of reinforced concrete (RC) in building for over a century: At what corrosion rate is RC durability seriously compromised? Does restoration of the initial conditions in properly manufactured concrete guarantee repassivation of corroded steel? Does the use of inhibitors enhance repassivation? Does the nature of the corrosion products have any significant effect on the response of corroded steel reinforcement? The results obtained in indicated that the effectiveness of preventive methods is much more closely related to the degree of existing corrosion than to the nature of the corrosion products.http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/35steelcement mortarcorrosionrepassivationelectrochemical techniques
spellingShingle J. M. Miranda
E. Otero
J. A. González
L. S. Hernández
Behaviour of corroded steel in a Ca(OH)2-saturated solution and in cement mortar. Possibility of rehabilitation
Materiales de Construccion
steel
cement mortar
corrosion
repassivation
electrochemical techniques
title Behaviour of corroded steel in a Ca(OH)2-saturated solution and in cement mortar. Possibility of rehabilitation
title_full Behaviour of corroded steel in a Ca(OH)2-saturated solution and in cement mortar. Possibility of rehabilitation
title_fullStr Behaviour of corroded steel in a Ca(OH)2-saturated solution and in cement mortar. Possibility of rehabilitation
title_full_unstemmed Behaviour of corroded steel in a Ca(OH)2-saturated solution and in cement mortar. Possibility of rehabilitation
title_short Behaviour of corroded steel in a Ca(OH)2-saturated solution and in cement mortar. Possibility of rehabilitation
title_sort behaviour of corroded steel in a ca oh 2 saturated solution and in cement mortar possibility of rehabilitation
topic steel
cement mortar
corrosion
repassivation
electrochemical techniques
url http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/35
work_keys_str_mv AT jmmiranda behaviourofcorrodedsteelinacaoh2saturatedsolutionandincementmortarpossibilityofrehabilitation
AT eotero behaviourofcorrodedsteelinacaoh2saturatedsolutionandincementmortarpossibilityofrehabilitation
AT jagonzalez behaviourofcorrodedsteelinacaoh2saturatedsolutionandincementmortarpossibilityofrehabilitation
AT lshernandez behaviourofcorrodedsteelinacaoh2saturatedsolutionandincementmortarpossibilityofrehabilitation