BS EN 12390-18:2021+A1:2024 - Testing Hardened Concrete: Determination of the Chloride Migration Coefficient

Introducing the latest standard in concrete testing, BS EN 12390-18:2021+A1:2024, a comprehensive guide dedicated to the determination of the chloride migration coefficient in hardened concrete. This standard is an essential resource for professionals in the construction and civil engineering industries, providing critical insights and methodologies for assessing the durability and longevity of concrete structures.

Overview of the Standard

The BS EN 12390-18:2021+A1:2024 standard is a pivotal document that outlines the procedures for testing hardened concrete to determine its chloride migration coefficient. This coefficient is a crucial parameter in evaluating the potential for chloride-induced corrosion in reinforced concrete structures, which can significantly impact their structural integrity and lifespan.

Released on November 4, 2024, this standard is the latest update in the series, incorporating the most recent advancements and research findings in concrete testing. With a total of 22 pages, it provides a detailed and structured approach to testing, ensuring accuracy and reliability in results.

Key Features and Benefits

• Comprehensive Methodology: The standard offers a detailed methodology for determining the chloride migration coefficient, ensuring that professionals can conduct tests with precision and consistency.
• Updated Guidelines: Incorporating the latest amendments, this version includes the most current practices and recommendations, making it a vital resource for staying up-to-date with industry standards.
• Enhanced Durability Assessment: By accurately determining the chloride migration coefficient, this standard aids in assessing the durability of concrete structures, helping to prevent costly repairs and extend their service life.
• International Recognition: As part of the BS EN series, this standard is recognized internationally, facilitating its use in global projects and collaborations.

Who Should Use This Standard?

This standard is indispensable for a wide range of professionals, including:

• Civil Engineers: To ensure the structural integrity and longevity of concrete structures.
• Construction Managers: For planning and executing projects with a focus on durability and quality.
• Quality Control Specialists: To implement rigorous testing protocols and maintain high standards in construction materials.
• Researchers and Academics: As a reference for studies and experiments related to concrete durability and corrosion resistance.

Technical Details

The BS EN 12390-18:2021+A1:2024 standard is identified by the ISBN 978 0 539 26377 0, ensuring easy reference and cataloging. As a standard, it holds a status of being a definitive guide in its field, providing authoritative and reliable information for its users.

Why is Chloride Migration Coefficient Important?

The chloride migration coefficient is a critical factor in assessing the potential for chloride-induced corrosion in reinforced concrete. Chlorides, often present in de-icing salts and marine environments, can penetrate concrete and reach the steel reinforcement, leading to corrosion. This process can compromise the structural integrity of concrete structures, leading to safety hazards and increased maintenance costs.

By determining the chloride migration coefficient, professionals can predict the rate at which chlorides will penetrate the concrete, allowing for better planning and implementation of protective measures. This proactive approach helps in designing more durable structures, reducing the risk of premature deterioration.

Conclusion

The BS EN 12390-18:2021+A1:2024 standard is an essential tool for anyone involved in the construction and maintenance of concrete structures. Its comprehensive guidelines and methodologies provide the necessary framework for accurately assessing the chloride migration coefficient, ensuring the durability and safety of concrete structures.

Stay ahead in the industry by incorporating this standard into your testing protocols and project planning. With its international recognition and up-to-date practices, it is a valuable asset for enhancing the quality and longevity of your concrete projects.

BS EN 12390-18:2021+A1:2024

This standard BS EN 12390-18:2021+A1:2024 Testing hardened concrete is classified in these ICS categories:

• 91.100.30 Concrete and concrete products

This document specifies the procedure for obtaining the non-steady-state chloride migration coefficient of specimens of hardened concrete at a specified age (see Annex A). The test procedure does not take into account any interaction of concrete with the saline solution over time. The test result is a durability indicator with respect to the resistance of the concrete investigated against chloride penetration. The test procedure does not apply to concrete specimens with surface treatments such as silanes. If the aggregate or any other embedded elements (such as metallic fibres or conducting particles) are electrically conductive, this will influence the magnitude of chloride migration. This fact is taken into account when establishing threshold values. It prevents comparison of chloride migration values between concretes if the aggregates induce a difference of half an order of magnitude (higher or lower) of chloride migration.