Tarmac

Reducing embodied carbon starts with understanding it.

Our Building Magazine CPD explores how carbon calculation tools can help designers and specifiers assess the impact of different concrete solutions, enabling more informed decisions from the outset.

Because when you can measure it, you can manage it: https://loom.ly/oqzCID4

Wherever your story takes you, Tarmac is already there.

With locations spanning England, Scotland and Wales, we offer an unmatched network of quarries, forests, mines, and railways – all supported by facilities like unit bases, parking, and offices.

Let’s start planning your next project! [email protected]

Concrete is evolving and so are the opportunities to reduce carbon without compromising performance.

Our latest CPD with Building Magazine explores the innovations, technologies and collaborative approaches helping to decarbonise concrete across the construction sector.

If you're looking to better understand lower carbon concrete and the role early engagement can play in project success, this CPD is a great place to start: https://loom.ly/oqzCID4

As the RHS - Royal Horticultural Society Chelsea Flower Show draws to a close, we look forward to seeing the Breathing Space Garden begin its next chapter.

The concrete elements we've supplied will move to their permanent home at Breathing Space in Rotherham, where the garden will continue to provide a space for reflection, rehabilitation, and wellbeing. It's a reminder that thoughtful design and responsible materials can create lasting impact beyond the event itself.

At the heart of this project for the RHS - Royal Horticultural Society Chelsea Flower Show is a net zero concrete mix developed to meet the ambitions of the Breathing Space Garden by Asthma + Lung UK.

The mix was designed using calcined clay technology alongside biogenic aggregates supplied by Low Carbon Materials. The biogenic aggregate replaces the coarse aggregate fraction of the mix and carries a negative carbon value.

With the concrete produced to a C32/40 strength grade, this project represents an art of the possible approach, demonstrating how innovation across materials and logistics can help reduce carbon while maintaining performance and durability.

Here's a look at what happened behind the scenes to help the team achieve such incredible results.

Today at the RHS - Royal Horticultural Society Chelsea Flower Show, we're proud to see the Breathing Space Garden from Asthma + Lung UK come to life.

The net zero concrete elements we supplied, including slabs, benches and canopy structure, have been precast using concrete from our Cambridge concrete plant before being installed at the show. After Chelsea, the garden will be relocated to its permanent home at Breathing Space in Rotherham, where it will continue to support lung rehabilitation and patient wellbeing.

So far, the reactions from guests have been amazing and it's great to see so many people already enjoying the garden!

We're proud to be part of this year's RHS - Royal Horticultural Society Chelsea Flower Show , supplying low carbon concrete for the Breathing Space Garden in support of Asthma + Lung UK.

The garden has been designed with a permanent future in mind, and our role has been to help deliver durable, high-quality concrete elements that reflect both innovation and responsibility. It's a project that demonstrates how materials and design can work together to create something with lasting value beyond the show.

Now all the hard work is done, we're looking forward to the show opening tomorrow!

https://loom.ly/kg1NVJE

Asthma + Lung UK @RHS Chelsea Flower Show 2026 Asthma + Lung UK are excited to announce our Breathing Space garden at RHS Chelsea Flower Show 2026 https://www.asthmaandlung.org.uk/chelsea-flower-show

Ahead of next week’s official opening of the Chelsea Flower Show, The Breathing Space Garden by Asthma + Lung UK, featuring our low carbon concrete will be showcased on BBC2 tonight.

Designed as a sanctuary for anyone seeking a calm and restorative space to reconnect with nature, the garden highlights the importance of wellbeing through thoughtful, sustainable design.

Tune in from 8pm on BBC2 for an exclusive first look at the garden ahead of the Chelsea Flower Show, along with guided breathing exercises inspired by the space itself.