NF EN ISO 12696

NF EN ISO 12696

April 2012
Standard Cancelled

Cathodic protection of steel in concrete

ISO 12696:2011 specifies performance requirements for cathodic protection of steel in cement-based concrete, in both new and existing structures. It covers building and civil engineering structures, including normal reinforcement and prestressed reinforcement embedded in the concrete. It is applicable to uncoated steel reinforcement and to organic-coated steel reinforcement.ISO 12696:2011 applies to steel embedded in atmospherically exposed, buried, immersed and tidal elements of buildings or structures.

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National standards and national normative documents

Publication date

April 2012

Number of pages

57 p.

Reference

NF EN ISO 12696

ICS Codes

25.220.40   Metallic coatings
77.060   Corrosion of metals
77.140.15   Steels for reinforcement of concrete

Classification index

A05-668

Print number

1 - 22/03/2012

International kinship

ISO 12696:2012

European kinship

EN ISO 12696:2012
Sumary
Cathodic protection of steel in concrete

ISO 12696:2011 specifies performance requirements for cathodic protection of steel in cement-based concrete, in both new and existing structures. It covers building and civil engineering structures, including normal reinforcement and prestressed reinforcement embedded in the concrete. It is applicable to uncoated steel reinforcement and to organic-coated steel reinforcement.

ISO 12696:2011 applies to steel embedded in atmospherically exposed, buried, immersed and tidal elements of buildings or structures.

Replaced standards (1)
NF EN 12696
July 2000
Standard Cancelled
Cathodic protection of steel in concrete

Le présent document spécifie les exigences de performances pour la protection cathodique de l'acier dans le béton exposé à l'atmosphère.

Standard replaced by (1)
NF EN ISO 12696
February 2017
Standard Cancelled
Cathodic protection of steel in concrete

ISO 12696:2016 specifies performance requirements for cathodic protection of steel in cement-based concrete, in both new and existing structures. It covers building and civil engineering structures, including normal reinforcement and prestressed reinforcement embedded in the concrete. It is applicable to uncoated steel reinforcement and to organic-coated steel reinforcement. ISO 12696:2016 applies to steel embedded in atmospherically exposed, buried, immersed and tidal elements of buildings or structures. NOTE 1 Annex A gives guidance on the principles of cathodic protection and its application to steel in concrete. NOTE 2 ISO 12696:2016, while not specifically intended to address cathodic protection of steel in any electrolyte except concrete, can be applied to cathodic protection of steel in other cementitious materials such as are found, for example, in early 20th century steel-framed masonry, brick and terracotta clad buildings. In such applications, additional considerations specific to these structures are required in respect of design, materials and installation of cathodic protection; however, the requirements of this document can be applied to these systems.

Table of contents
  • Avant-propos
    v
  • Introduction
    vi
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes et définitions
    2
  • 4 Généralités
    2
  • 4.1 Systèmes de management de la qualité
    2
  • 4.2 Personnel
    3
  • 4.3 Conception
    3
  • 5 Évaluation et réparation de la structure
    3
  • 5.1 Généralités
    3
  • 5.2 Enregistrements
    4
  • 5.3 Examen visuel et recherche de délamination
    4
  • 5.4 Analyse des chlorures
    4
  • 5.5 Mesurage de la profondeur de carbonatation
    4
  • 5.6 Enrobage et localisation des armatures
    4
  • 5.7 Continuité électrique des armatures
    5
  • 5.8 Potentiel acier/béton
    5
  • 5.9 Résistivité électrique du béton
    5
  • 5.10 Réparation
    6
  • 5.11 Couche de recouvrement à base de ciment
    7
  • 5.12 Structures neuves
    7
  • 6 Composants de l'installation de protection cathodique
    8
  • 6.1 Généralités
    8
  • 6.2 Ensembles anodiques
    8
  • 6.3 Capteurs de surveillance
    14
  • 6.4 Instrumentation de surveillance
    16
  • 6.5 Système de gestion de données
    17
  • 6.6 Câbles à courant continu
    18
  • 6.7 Boîtiers de jonction
    19
  • 6.8 Alimentations électriques
    19
  • 6.9 Transformateurs-redresseurs
    19
  • 7 Modes opératoires de mise en place
    21
  • 7.1 Continuité électrique
    21
  • 7.2 Système de surveillance de la performance
    21
  • 7.3 Connexions avec l'acier dans le béton
    22
  • 7.4 Réparations du béton associées aux composants de protection cathodique
    22
  • 7.5 Préparation des surfaces pour l'installation des anodes
    23
  • 7.6 Installation des anodes
    23
  • 7.7 Connexions à l'ensemble anodique
    23
  • 7.8 Recouvrement de l'anode, application d'un matériau d'étanchéité de surface ou d'un revêtement décoratif
    24
  • 7.9 Installation électrique
    24
  • 7.10 Essais en cours d'installation
    25
  • 8 Mise en service
    25
  • 8.1 Examen visuel
    25
  • 8.2 Mesurages avant mise sous tension
    26
  • 8.3 Mise sous tension initiale des systèmes à courant imposé
    26
  • 8.4 Réglage initial des systèmes à courant imposé
    27
  • 8.5 Évaluation de la performance initiale
    27
  • 8.6 Critères de protection: interprétation de l'évaluation de la performance
    28
  • 8.7 Réglage de la sortie de courant pour les systèmes à courant imposé
    29
  • 9 Enregistrement et documentation de l'installation
    30
  • 9.1 Enregistrements qualité et enregistrements d'essai
    30
  • 9.2 Rapport de mise en place et de mise en service
    30
  • 9.3 Manuel de fonctionnement et de maintenance
    30
  • 10 Exploitation et maintenance
    31
  • 10.1 Périodicité et modes opératoires
    31
  • 10.2 Suivi de l'installation
    32
  • 10.3 Rapport de suivi de l'installation
    32
  • Annexe A (informative) Principes de la protection cathodique et son application à l'acier dans le béton
    33
  • Annexe B (informative) Procédé de conception
    39
  • Annexe C (informative) Notes sur les ensembles anodiques
    43
  • Bibliographie
    48
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