BS EN 12390-12:2020
Testing hardened concrete Determination of the carbonation resistance of concrete. Accelerated carbonation method
| Standard number: | BS EN 12390-12:2020 |
| Pages: | 22 |
| Released: | 2020-04-02 |
| ISBN: | 978 0 539 13535 0 |
| Status: | Standard |
BS EN 12390-12:2020 - Testing Hardened Concrete: Determination of the Carbonation Resistance of Concrete
Standard Number: BS EN 12390-12:2020
Pages: 22
Released: April 2, 2020
ISBN: 978 0 539 13535 0
Status: Standard
Overview
The BS EN 12390-12:2020 standard is an essential document for professionals in the construction and civil engineering industries. It provides a comprehensive methodology for testing the carbonation resistance of hardened concrete using the accelerated carbonation method. This standard is crucial for ensuring the durability and longevity of concrete structures, which are fundamental to modern infrastructure.
Importance of Carbonation Resistance
Carbonation is a natural process that occurs when carbon dioxide from the atmosphere reacts with the calcium hydroxide in concrete to form calcium carbonate. While this process is generally slow, it can lead to a reduction in the alkalinity of concrete, which in turn can cause the corrosion of steel reinforcement. This makes the determination of carbonation resistance a critical factor in assessing the durability of concrete structures.
Accelerated Carbonation Method
The accelerated carbonation method outlined in this standard provides a reliable and efficient way to assess the carbonation resistance of concrete. By simulating the natural carbonation process under controlled conditions, this method allows for the rapid evaluation of concrete's performance, enabling timely adjustments in mix design or construction practices to enhance durability.
Who Should Use This Standard?
This standard is indispensable for:
- Structural engineers and designers who need to ensure the longevity of concrete structures.
- Quality control professionals in the construction industry who are responsible for testing and verifying material properties.
- Researchers and academics studying the properties and performance of concrete materials.
- Construction companies aiming to meet regulatory requirements and industry standards.
Benefits of Using BS EN 12390-12:2020
Adopting the BS EN 12390-12:2020 standard offers numerous benefits, including:
- Enhanced Durability: By accurately assessing carbonation resistance, this standard helps in designing concrete mixes that are more resistant to environmental degradation.
- Cost Efficiency: Early detection of potential carbonation issues can prevent costly repairs and extend the lifespan of concrete structures.
- Compliance: Ensures that construction projects meet the latest industry standards and regulatory requirements.
- Innovation: Encourages the development of new materials and techniques to improve the performance of concrete.
Detailed Content
The standard spans 22 pages and provides detailed guidance on the following aspects:
- Preparation of test specimens and conditions for testing.
- Procedures for conducting accelerated carbonation tests.
- Interpretation of test results and assessment of carbonation resistance.
- Recommendations for improving carbonation resistance based on test outcomes.
Conclusion
The BS EN 12390-12:2020 standard is a vital tool for anyone involved in the construction and maintenance of concrete structures. By providing a clear and effective method for assessing carbonation resistance, it helps ensure that concrete structures remain safe, durable, and cost-effective over their lifespan. Whether you are an engineer, a quality control specialist, or a researcher, this standard is an invaluable resource for enhancing the performance and reliability of concrete.
Get Your Copy
To fully benefit from the insights and methodologies provided in the BS EN 12390-12:2020 standard, ensure you have access to the complete document. This will enable you to implement best practices in testing and improving the carbonation resistance of concrete, ultimately leading to more durable and sustainable construction projects.
BS EN 12390-12:2020
This standard BS EN 12390-12:2020 Testing hardened concrete is classified in these ICS categories:
- 91.100.30 Concrete and concrete products
This document quantifies the carbonation resistance of concrete using test conditions that accelerate the rate of carbonation. After a period of preconditioning, the test is carried out under controlled exposure conditions using an increased level of carbon dioxide.
The test performed under reference conditions takes a minimum of 112 days comprising a minimum age of the specimen prior to curing under water of 28 days, a minimum preconditioning period of 14 days and an exposure period to increased carbon dioxide levels of 70 days.
This procedure is not a method for the determination of carbonation depths in existing concrete structures.