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BS EN ISO 12696:2022

BS EN ISO 12696:2022

$198.66

Cathodic protection of steel in concrete

Published By Publication Date Number of Pages
BSI 2022 66
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This document 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 carbon steel reinforcement and prestressed reinforcement embedded in the concrete. It is applicable to uncoated steel reinforcement and to organic-coated steel reinforcement. It is not applicable to reinforced concrete containing electrically conductive fibres (e.g. carbon or steel). This document applies to steel embedded in atmospherically exposed, buried, immersed and tidal elements of buildings or structures. This document is only applicable to the applications of cathodic protection to steel in concrete which are designed with the intention to, and can be demonstrated to, meet the criteria of protection specified in 8.6. This requires the provision of sufficient performance monitoring systems as specified in 6.3 to all parts of the structure intended to be protected, in order to assess the extent to which the criteria in 8.6 are met. This document does not apply to galvanic anodes or systems applied into patch repairs to reduce the effects of ā€˜incipient anodesā€™. This document does also not apply to any form of cathodic protection systems or other electrochemical treatments that either cannot meet the requirements of 8.6 or are not provided with the performance monitoring systems (see 6.3) that are necessary to assess whether the criteria of protection specified in 8.6 are met. NOTE 1    Annex A gives guidance on the principles of cathodic protection and its application to steel in concrete. NOTE 2    This document, 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.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 European foreword
Endorsement notice
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
10 3 Terms and definitions
11 4 General
4.1 Quality management
4.2 Persons
4.3 Design
12 5 Structure assessment and repair
5.1 General
5.2 Records
5.3 Visual inspection and delamination survey
5.4 Chloride analysis
5.5 Carbonation depth measurement
13 5.6 Concrete cover and reinforcement location
5.7 Reinforcement electrical continuity
5.8 Steel/concrete potential
5.9 Concrete electrical resistivity
14 5.10 Repair
5.10.1 General
5.10.2 Concrete removal
5.10.3 Reinforcement preparation
5.10.4 Concrete reinstatement
15 5.11 Cementitious overlay
5.12 New structures
16 6 Cathodic protection system components
6.1 General
6.2 Anode systems
6.2.1 General
17 6.2.2 Conductive coating anode systems
18 6.2.3 Activated titanium anode systems
19 6.2.4 Titania ceramic anodes
6.2.5 Conductive cementitious anodes
6.2.6 Embedded galvanic anodes
20 6.2.7 Surface-mounted galvanic anodes
6.2.8 Buried and immersed anodes
22 6.3 ā€‹Monitoring sensors
6.3.1 General
23 6.3.2 Portable reference electrodes
6.3.3 Other sensors
24 6.4 ā€‹Monitoring instrumentation
6.4.1 General
6.4.2 Digital meters
6.4.3 Data loggers
25 6.5 Data management system
26 6.6 Direct current cables
27 6.7 Junction boxes
6.8 Power supplies
6.9 Transformer-rectifiers
29 7 Installation procedures
7.1 Electrical continuity
7.2 Performance monitoring system
30 7.3 Connections to steel in concrete
7.4 Concrete repairs associated with the cathodic protection components
7.5 Surface preparation for anode installation
31 7.6 Anode installation
7.7 Connections to the anode system
7.8 Anode overlay, surface sealant or decorative coating application
32 7.9 Electrical installation
33 7.10 Testing during installation
8 Commissioning
8.1 Visual inspection
8.2 Pre-energizing measurements
34 8.3 Initial energizing of impressed current systems
8.4 Initial adjustment of impressed current systems
35 8.5 Initial performance assessment
36 8.6 Criteria of protection: Interpretation of performance assessment data
37 9 System records and documentation
9.1 Quality and test records
9.2 Installation and commissioning report
38 9.3 Operation and maintenance manual
10 Operation and maintenance
10.1 Intervals and procedures
39 10.2 System review
10.3 System review report
40 Annex A (informative) Principles of cathodic protection and its application to steel in concrete
48 Annex B (informative) Design process
55 Annex C (informative) Notes on anode systems
60 Annex D (informative) Notes on reference electrodes
64 Bibliography

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BS EN ISO 12696:2022
$198.66