Heidelberg Materials UK has begun pioneering trials of CarbonCure technology in London, marking a significant step in reducing embodied carbon in concrete and advancing sustainable construction practices across the UK and Ireland.
Heidelberg Materials UK has begun trials of CarbonCure technology in ready-mixed concrete at its Greenwich plant in London, part of a broader push to cut embodied carbon in construction materials. According to the original report, the process injects manufactured carbon dioxide into fresh concrete where it mineralises, improving hydration efficiency, increasing strength and permanently locking CO₂ into the material. The company says the technology typically enables an average 5% reduction in cement content and can lower CO₂ associated with concrete by about 7–11 kg/m³.
Daniel Clayton, concrete technical director at Heidelberg Materials UK, said: “The CarbonCure trial is the first of its kind to trial the technology in ready-mix concrete in England and is another example of our commitment to innovation and decarbonising our business, to deliver lower carbon construction materials to our customers.” The company noted the mineralised CO₂ remains embedded even if the concrete is later demolished.
According to the announcement from Heidelberg, the system integrates into existing production lines with minimal impact on finished product performance. Industry data and project case studies show CarbonCure has been deployed widely since its development in Canada more than a decade ago, including in North American projects such as Amazon HQ2 and a General Motors plant, underlining its commercial traction.
The Greenwich trial complements other low-carbon offerings at the Thameside plant, which the company says already supplies calcined clay blends, low-carbon GGBS products, recycled crushed concrete and evoZero , a carbon-captured near‑zero cement the company is marketing. Heidelberg Materials has also secured planning consent to incorporate full carbon capture and storage (CCS) at its Padeswood cement works in North Wales, a project intended to capture up to 95% of kiln emissions and support plans to produce evoZero domestically; the company has additionally started shipments of low-carbon cement from its Brevik plant in Norway to the UK market.
The adoption of CarbonCure across the UK and Ireland is not limited to Heidelberg. According to related industry reporting, precast manufacturer Marshalls has become the first UK precast producer to implement CarbonCure, initially using waste CO₂ from the fertiliser industry at a brick plant in Grove. Kilsaran has also partnered with CarbonCure and undertaken phased trials at ready-mix plants in Ireland and the UK, signalling growing interest from both ready-mix and precast sectors in CO₂ mineralisation to reduce product carbon footprints without compromising performance.
While proponents emphasise that mineralisation permanently sequesters CO₂ and can reduce cement demand, independent evaluation of lifecycle impacts remains critical. Government figures, lifecycle analyses and third‑party verification will be needed to quantify net carbon reductions across supply chains , including the source and transport of CO₂ used for mineralisation, changes in cement manufacturing emissions, and the embodied impacts of complementary low‑carbon cements and CCS projects.
For industrial decarbonisation specialists, the trial illustrates how combining incremental measures , CO₂ mineralisation in concrete, blended cements, recycled aggregates and CCS at cement works , can form a multi‑vector strategy to reduce embodied carbon in construction materials. The trial also highlights operational considerations for ready‑mix producers: integration with plant control systems, reliable CO₂ supply chains (including opportunities to use captured or waste CO₂), and the need for performance validation and certification to satisfy specifiers and clients.
According to the original report, Heidelberg intends to continue investing in a range of technologies and partnerships to lower the carbon intensity of its products, positioning trials such as Greenwich as part of a portfolio approach rather than a single‑solution pathway.
- https://www.theconstructionindex.co.uk/news/view/heidelberg-uk-injects-carbon-dioxide-into-concrete-mix – Please view link – unable to able to access data
- https://www.heidelbergmaterials.co.uk/en/news-and-events/first-trials-of-carboncure – Heidelberg Materials UK is conducting its first trials of CarbonCure technology in ready-mixed concrete at its Greenwich plant in London. This process involves injecting pure CO₂ into fresh concrete, where it mineralises, enhancing hydration efficiency and producing stronger concrete. The technology allows for a 5% reduction in cement usage and can decrease CO₂ emissions by 7-11 kg/m³. Daniel Clayton, Concrete Technical Director, highlighted the trial as a commitment to innovation and decarbonisation, ensuring that mineralised CO₂ remains permanently locked in, even if the concrete is demolished in the future.
- https://www.global-concrete.com/news/1660-heidelberg-materials-uk-trials-ready-mix-concrete-production-with-carboncure-co2-sequestration – Heidelberg Materials UK has implemented CarbonCure’s CO₂ sequestration technology at its Greenwich ready-mix concrete plant in London. The process involves injecting pure CO₂ into fresh concrete, where it mineralises, reducing CO₂ emissions by 7-11 kg/m³ and allowing a 5% reduction in cement usage. The Greenwich plant also offers calcined clay, evoBuild low-carbon GGBS, crushed concrete, accelerators, and evoZero, the world’s first carbon-captured near-zero cement. The CarbonCure process, developed over a decade ago in Canada, is gaining global traction, including in North America, with projects like Amazon HQ2 in Virginia and General Motors Manufacturing Plant in Tennessee.
- https://www.marshalls.co.uk/news/marshalls-to-be-first-concrete-product-manufacture – Marshalls has become the first precast concrete manufacturer in the UK to adopt CarbonCure Technologies’ carbon mineralisation technology. This process injects CO₂ into concrete during mixing, where it reacts with cement to form calcium carbonate, permanently locking the CO₂ into the concrete. Initially, Marshalls will apply CarbonCure at its brick manufacturing site in Grove, using waste CO₂ from the fertiliser industry as the CO₂ source. This innovation aims to reduce the carbon footprint of concrete products without compromising performance.
- https://www.kilsaraninternational.co.uk/about-kilsaran-and-carboncure/ – Kilsaran has partnered with CarbonCure to introduce its technology in Ireland and the UK. The phased introduction includes trials at two Kilsaran ready-mixed concrete plants in Dublin, starting in 2022. CarbonCure injects recycled CO₂ into concrete, reducing its carbon footprint without compromising performance. The CO₂ undergoes mineralisation, becoming permanently embodied in the concrete. Keith Goodwin, Group Technical Manager at Kilsaran, stated that the introduction of CarbonCure will enable the company to offer concrete with a reduced carbon footprint and increased long-term durability.
- https://www.thechemicalengineer.com/news/heidelberg-materials-wins-uk’s-first-approval-for-carbon-capture-cement-plant/ – Heidelberg Materials has been granted planning permission to integrate carbon capture and storage (CCS) into its Padeswood cement works in North Wales. This project aims to make Padeswood the UK’s first net-zero cement plant, with operations expected to start in 2029. The CCS system is designed to capture 95% of emissions from the cement kilns, amounting to 800,000 tonnes of CO₂ annually. The captured CO₂ will be stored in depleted gas reservoirs owned by Eni beneath Liverpool Bay, part of the HyNet CCS cluster.
- https://www.spglobal.com/commodity-insights/en/news-research/latest-news/fertilizers/110625-germanys-heidelberg-materials-delivers-first-low-carbon-cement-to-uk – Heidelberg Materials has delivered its first low-carbon cement, EvoZero, to the UK from its Brevik plant in Norway. Approximately 3,500 metric tonnes of the product were shipped to the Port of Goole in East Riding of Yorkshire. The cement is stored in silos and available for use in construction projects across the UK. The company plans to produce EvoZero at its Padeswood Cement Works in North Wales, with production expected to begin in 2029.
Noah Fact Check Pro
The draft above was created using the information available at the time the story first
emerged. We’ve since applied our fact-checking process to the final narrative, based on the criteria listed
below. The results are intended to help you assess the credibility of the piece and highlight any areas that may
warrant further investigation.
Freshness check
Score:
10
Notes:
The narrative is fresh, with the earliest known publication date being 4 December 2025. The report is based on a press release from Heidelberg Materials UK, which typically warrants a high freshness score. No earlier versions with different figures, dates, or quotes were found. The content has not been republished across low-quality sites or clickbait networks. The article includes updated data and does not recycle older material. No similar content appeared more than 7 days earlier.
Quotes check
Score:
10
Notes:
The direct quote from Daniel Clayton, Concrete Technical Director at Heidelberg Materials UK, appears to be original, with no identical matches found in earlier material. The wording matches the press release verbatim, indicating no variations.
Source reliability
Score:
10
Notes:
The narrative originates from a reputable organisation, Heidelberg Materials UK, a subsidiary of Heidelberg Materials, a global leader in building materials. The press release is hosted on the company’s official website, enhancing its credibility.
Plausability check
Score:
10
Notes:
The claims made in the narrative are plausible and align with Heidelberg Materials UK’s ongoing efforts in decarbonisation and innovation. The integration of CarbonCure technology into the concrete production process is consistent with industry trends towards sustainable construction materials. The technical details provided are coherent and supported by the company’s previous initiatives, such as the delivery of evoZero cement to the UK market. The language and tone are consistent with corporate communications in the construction industry.
Overall assessment
Verdict (FAIL, OPEN, PASS): PASS
Confidence (LOW, MEDIUM, HIGH): HIGH
Summary:
The narrative is fresh, originating from a reputable source, and presents plausible claims consistent with Heidelberg Materials UK’s known initiatives. The direct quote is original, and the technical details are coherent and supported by the company’s previous actions. No discrepancies or signs of disinformation were identified.
