BSI Flex 350 v2.0:2024-09

Version 2.0 of BSI Flex 350 is available for download now and is open for comment via the Standards Development Portal

You can download a DRM-free copy of this document here.

What is BSI Flex 350 v2.0:2024 - Alternative binder systems for lower carbon concrete about?

If our planet is to stay within 1.5C to 2C of warming, annual carbon emissions from the cement industry will need to reduce.

To that end, BSI Flex 350 v2.0:2024 deals with how to assess alternative binder systems (ABS) that can lower carbon emissions from concrete while maintaining performance.

Who is BSI Flex 350 v2.0:2024 for?

• construction engineers/designers
• specifiers
• contractors
• producers of alternative binder
• send users of alternative binders

What does BSI Flex 350 v2.0:2024 - Alternative binder systems for lower carbon concrete cover?

This is a performance-based code of practice, providing recommendations to work towards the Net Zero 2050 target when incorporating alternative binder systems (ABS). It is agnostic to binder technologies.

BSI Flex 350 v2.0:2024-covers background and properties of typical ABS with recommendations on testing and monitoring to demonstrate compliance with the recommendations on performance for different applications.

Its primary purpose is to assist engineers using low carbon technologies, including but not limited to geopolymer or alkali-activated materials (AAM). It does not cover the cement types in BS EN 197, BS EN 15743 or BS EN 14647.

Why should you use BSI Flex 350 v2.0:2024 - Alternative binder systems for lower carbon concrete?

• Decarbonization. Cement production is a major contributor to greenhouse gas emissions. BSI Flex 350 v2.0:2024- supports an alternative approach that could significantly reduce construction’s carbon footprint and contribute to global climate change mitigation.
• Testing efficiency. BSI Flex 350 v2.0:2024- explains the level of testing information and monitoring that is required to support the specification of new ABS for different applications. This increases your time- and resource-efficiency because superfluous tests aren’t being performed.
• Market confidence. BSI Flex 350 v2.0:2024- draws on national expertise to help users demonstrate the suitability of ABS convincingly, building market confidence in novel solutions. It also provides guidance on suitable applications.
• Clear specifications. BSI Flex 350 v2.0:2024- can help users to specify suitable new ABS clearly and efficiently.
• Support for innovation. By being performance based, BSI Flex 350 v2.0:2024- supports research and development into alternative binders and helps users validate innovative solutions efficiently and effectively.
• Competitive advantage. BSI Flex 350 v2.0:2024- can help satisfy an increasing market demand for more environmentally friendly construction practices and materials, giving users a reputational and competitive edge.
• Regulatory compliance. Regulation will increasingly drive the construction sector to lower carbon emissions. By supporting the adoption of lower carbon ABS, BSI Flex 350 v2.0:2024-can help end users with compliance and to avoid potential legal and financial penalties.
• Futureproofing. As the world moves towards a low-carbon future, the construction industry must adapt and embrace sustainable practices. BSI Flex 350 V2.0:2024- is a step in the direction of ensuring the long-term viability of construction projects.Sustainability goals. The overarching purpose of BSI Flex 350 v2.0:2024- is to encourage the use of lower carbon concrete alternatives that can also help organizations meet their sustainability goals and commitments.