The SN EN 206+A2/ND:2025 is a national annex to the European standard that defines specifications, performance criteria, production methods, and conformity assessments for concrete in Switzerland. It is published by the Swiss Association for Standardization (SNV) and applies to all stakeholders involved in concrete production and use.

Purpose and objectives

The primary objective of the SN EN 206:2013+A2:2021 standard is to ensure the reliability and quality of concrete used in construction projects across Switzerland. By setting clear specifications and performance criteria, the standard aims to facilitate consistency in the production and application of concrete, thereby enhancing safety and durability in construction. Additionally, it addresses environmental considerations by incorporating guidelines for sustainable practices, including the use of recycled materials and optimized CO2 emissions in concrete components.

Scope: who must comply

The SN EN 206:2013+A2:2021 standard applies to a wide range of stakeholders in the construction industry, including:

• Manufacturers of concrete: They must adhere to the production standards and quality control measures outlined in the annex.
• Construction companies: These entities are responsible for using compliant concrete in building projects.
• Consultants and engineers: Professionals involved in designing and specifying concrete solutions must ensure that their recommendations align with the standard.
• Regulatory authorities: They enforce compliance during inspections and certifications. This standard is vital for all parties engaged in the Construction Materials & Buildings context, ensuring that everyone contributes to high-quality concrete outputs.

How SN EN 206+A2/ND:2025 relates to other standards

The SN EN 206:2013+A2:2021 standard is interconnected with several other standards, which include:

• SIA 262:2013: This standard provides guidelines for the structural design of concrete elements, complementing SN EN 206's specifications.
• SN EN 1008: This standard outlines the requirements for mixing water used in concrete, ensuring that it meets quality criteria essential for concrete performance.
• SN EN 12620+A1: This standard specifies the properties of aggregates used in concrete production, which are crucial for achieving desired performance and durability.

Revision history and current status

The SN EN 206:2013+A2:2021 was published by the Swiss Association for Standardization (SNV) in 2021, serving as an update to the previous version from 2013. The most recent revision introduced amendments concerning compliance requirements and enhanced performance criteria for concrete. These updates reflect ongoing advancements in construction technology and aim to address modern environmental challenges, ensuring that Swiss concrete standards remain at the forefront of industry practices.