Electrochemical realkalization and chloride extraction treatments for reinforced concrete - Part 2: Chloride extraction
Also Known As:
The DIN EN 14038-2 standard describes the procedure for electrochemical chloride extraction from chloride-bearing concrete in existing structures. It is specifically intended for structures with ordinary reinforcement or post-tensioned tendon ducts embedded in concrete that are exposed to atmospheric conditions. Prior to the treatment, it is important to ensure that there is no risk of hydrogen embrittlement, which may involve conducting trials and implementing monitoring measures.
However, this standard does not apply to concrete containing pre-stressing steel, as there is a potential for hydrogen embrittlement during chloride extraction. It also does not apply to concrete with coated or galvanized reinforcement. When dealing with post-tensioned, pre-stressed concrete, steps can be taken to protect the endangered tendon strands from excessive polarization and water reduction by shielding them with tendon ducts.
| Descriptors | Chloride content, Chlorides, Components, Concretes, Condition tests, Construction, Construction works, Corrosion protection, Definitions, Electrochemical corrosion, Electrochemical methods, Electrolytic cleaning, Evaluations, Extraction, Materials testing, Measurement, Measuring techniques, Prestressed concrete, Realkalization, Reinforced concrete, Reinforcement, Repairs, Surfaces, Testing, Treatment |
| ICS Codes | 91.100.30 - Concrete and concrete products |
| Language(s) | English |
| File Size | 1.2 MB |
