Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BS EN 14038-2:2020 – TC:2021 Edition

BS EN 14038-2:2020 – TC:2021 Edition

$186.33

Tracked Changes. Electrochemical realkalization and chloride extraction treatments for reinforced concrete – Chloride extraction

Published By Publication Date Number of Pages
BSI 2021 62
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

This document specifies a procedure for carrying out impressed current electrochemical chloride extraction from chloride bearing concrete in existing structures. It is applicable to atmospherically exposed parts of structures with ordinary reinforcement and/ or post-tensioned tendon ducts embedded in concrete. In the latter case, it is essential to verify that there is no risk of hydrogen embrittlement, if necessary by conducting trials and installing monitoring during the treatment. This document does not apply to concrete containing pre-stressing steel, which can suffer hydrogen embrittlement during chloride extraction, or to concrete containing coated or galvanized reinforcement. In case of post-tensioned, pre-stressing concrete, the endangered tendon strands can be shielded by the tendon ducts from unwanted and/or exceeded polarization into the cathodic range and respective water reduction.

PDF Catalog

PDF Pages PDF Title
1 30448745
35 A-30372481
36 undefined
42 1 Scope
2 Normative references
3 Terms and definitions
43 4 Principle
5 General
5.1 Quality management systems
5.2 Personnel
44 6 Assessment and repair of the structure
6.1 General
6.2 Review of records
6.3 Inspection
45 6.4 Assessment of corrosion activity
6.5 Determination of chloride content
6.6 Visual inspection of the rebar surface and carbonation depth measurement
46 6.7 Concrete cover thickness and reinforcement location measurements
6.8 Alkali aggregate reaction
6.9 Reinforcement continuity and size
6.10 Repair
6.10.1 General
6.10.2 Concrete removal
47 6.10.3 Reinforcement preparation
7 Materials and equipment
7.1 Calibration of instrumentation
7.2 Anode system
7.2.1 General
7.2.2 Anode
7.2.3 Anode zone
7.2.4 Alkaline electrolyte solution
48 7.3 Electric cables
7.4 Power supply
49 8 Installation procedures
8.1 Electrical continuity
8.2 Other metallic parts within the treatment area
8.3 Performance monitoring
8.4 Installation of the anode system
8.5 Protection of electrolyte solution
8.6 Electrical installation
50 8.7 Preliminary testing and documentation
9 Commissioning, operation and termination of treatment
9.1 Visual inspection
9.2 Safety precautions
9.3 Energizing and adjustment of current output
51 9.4 Routine inspection and maintenance
9.5 Chloride extraction process monitoring
9.6 Termination of treatment
53 10 Final report
54 11 Post-treatment coating and monitoring

Related products

BS EN 14038-2:2020 - TC
$186.33