Adding graphene to concrete can reduce CO₂ emissions by using less material without sacrificing strength. The consortium, led by Cemex and partnered with Galliford Try, Sika, Northumbrian Water, and Graphene@Manchester, will conduct research to develop and market more eco-friendly construction materials.
Working with partners representing the whole supply chain, application experts from Graphene Engineering Innovation Centre (GEIC), part of Graphene@Manchester will share their expertise and access to cutting edge equipment to support the consortium in designing, developing, scaling, and ‘de-risking’ the next generation of innovative construction materials. Led by Dr Lisa Scullion, who manages the GEIC’s concrete application division, the team will conduct research into the formulation and testing of an integrated micronized limestone and graphene-based admixtures.
Graphene@Manchester has demonstrated through previous collaborations with industry partners that adding graphene effectively enhances the mechanical properties of concrete, reducing the amount of material needed while maintaining early age strength development.
The aim on this project is to understand the benefits of uniting graphene with micronized limestone as a supplementary cementitious material. The use of micronized limestone reduces the need for Ordinary Portland Cement, which is responsible for a significant portion of concrete's carbon emissions. It’s fine particle size and high surface area, also contributes to improved particle packing and hydration reactions in the concrete mix, enhancing strength and durability.
By using the materials together, the consortium hopes to further lower carbon concrete without compromising on strength, curing time, or the need to amend traditional production methods. The GEIC will formulate the mix, while the actual concrete pour will be at a Northumbria Water installation.
James Baker, CEO at Graphene@Manchester, added: This partnership showcases the power of our lab-to-market innovation model, where we collaborate with industry and its supply chain to scale and commercialise graphene and share the remarkable properties of this 2D (2 Dimensional) material. The outcomes of the project will foster engagement between innovation projects and end users, demonstrating market demand, reducing commercial risks, encouraging investment, and speeding up adoption. The potential for graphene-enhanced concrete to significantly reduce CO₂ emissions during manufacturing marks a major advancement in sustainable construction.”
Mike Higgins, National Technical Manager for Cemex UK, commented that “This partnership is a great example of experts working across the construction sector to drive innovative new approaches that aim to bring about additional benefits for the built environment, as it continues its journey towards a more sustainable future.”
Higgins goes on to add that, “The commercial potential of this innovation is substantial, given the urgent need for more sustainable building materials in the face of global climate challenges. This project encompasses a comprehensive plan from laboratory development to real-world application, ensuring the solution is not only technically viable but also commercially viable.”
