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Carbon classification for concrete

Event organised by ICE

20 September 2023

This event has now ended

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The Green Construction Board’s Low Carbon Concrete Group recently developed an embodied carbon classification scheme for concrete, intended to help users understand the carbon intensity of concrete products currently available in the UK.

The scheme provides a common calculation methodology, underpinned by shared definitions and assumptions, helping alleviate the current market confusion over the definition of ‘low’, or ‘lower’ carbon concrete. The scheme is kept up to date by periodic surveys of the carbon content of concrete sold in the UK.

This presentation describes an extension to this embodied carbon classification scheme by Arup, which aims to provide a set of fixed embodied carbon rating bands (A-G) for concrete. These can help bodies implement market interventions to stimulate demand for lower carbon concrete, in cases where dynamic rating bands would be hard to use. They can also help communicate industry progress towards net zero.


12:00 - 12:20


12:20 - 12:45



Matthew Munro

Matthew Munro


sustainability consultant & engineer

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Matthew Munro

Matthew Munro completed his Bachelors (Hons.) in Civil and Environmental Engineering at the University of Auckland. He moved to the UK in 2020 to complete a Masters in Engineering for Sustainable Development at the University of Cambridge, where his dissertation focused on technologies to decarbonise concrete. He now works for Arup’s Buildings Sustainability Team and is involved with projects helping to decarbonise the UK’s concrete sector.

For more information please contact:

Lyndsey Pollock