RockFuel is redefineing cement and transforming concrete infrastructure and structure into a global decarbonization solution that is truly net-zero.
As the world strengthens its efforts to combat climate change, industries under scrutiny are being challenged to become innovative or obsolete. Cement production, which is responsible for approximately 8% of global CO2 emissions, is a major target for conversion. Now, the UK-based company Lockful’s pioneering solutions promise to revolutionize the sector. It not only reduces emissions, carbon-negative cement processes – reverse them.
With a patented closed-loop manufacturing system that produces “carbon neutral cores,” Rockfuel’s approach offers a truly climate-positive alternative that is expandable and economically viable to traditional cement. This development is a key milestone in sustainable construction and serves as rock fuel as a key player in decarbonisation of the global construction materials industry.
Cement a new future with carbon capture
At the heart of this innovation is Rockfuel’s carbon neutral lime kiln. This is a highly efficient system that generates speed-selective (CAO) while capturing Co2 released during the process. The traditional cement kiln vents this co directly into the atmosphere. Rockfuel’s closed-loop kiln is fully equipped with renewable energy sources, including solar, wind, hydroelectric, or energy recovered from other Rockfuel processes.
Captured CO₂ is not merely stored or sequestered, but is reintegrated into the production cycle in a new way, forming the basis of Rockfuel’s carbon-negative cement solutions. By closing the loop and incorporating carbon capture into the manufacturing stage, RockFuel provides a blueprint for next-generation industrial processes.
From emission sources to carbon sinks
In Rockfuel’s carbon neutral cement process, cement starts as a rate selection (CAO – calcium oxide) produced in KILN from CACO3 and is equipped with carbon neutral energy. It is then blended with clay to create cement, but the captured Co2 undergoes electrolysis and uses excess energy from the system to contribute to the carbon neutral process. This gives solid carbon and carbon-neutral oxygen. Both are valuable industrial by-products.
Oxygen can be used in advanced materials such as carbon fiber and graphene, but oxygen can be found in steel manufacturing, wastewater treatment, medical technology and chemical industries. This multi-output system ensures minimal waste, creates new revenue opportunities, and enhances the commercial appeal of investors and manufacturing partners.
Importantly, as Lockful cement is used in construction and the resulting concrete begins to heal, additional atmospheric co-accumulation is absorbed, turning the infrastructure into a long-term carbon sink. This makes the product not only carbon neutral, but also carbon negative throughout the lifecycle. This is a key differentiator in the competition for global decarbonisation in built environments and infrastructure projects around the world. Although some governments generally do not accept this figure for natural carbon hardening effect, the Lockful carbon negative cement process contains a very small percentage of calcium oxide used in marine projects.
Meet the demands of global markets
The cement industry is projected to grow from $316.3 billion in 2020 to more than $463 billion by 2026, thanks to infrastructure investment, population growth and urbanization on all continents. As the country implements stricter carbon policies, demand for climate-positive materials is rapidly increasing.
While the Asia-Pacific region continues to dominate production, North America and Europe lead regulatory pressures and innovation-driven sustainability strategies. Both the public and private sectors, governments, investors and project developers are looking for material that provides verifiable carbon reductions without compromising performance, compatibility, or cost-effectiveness. RockFuel’s solutions support all three.
The chemical properties of the cement remain the same as those of conventional formulations. This means that it can be used in existing applications such as injected concrete and precast components without changing construction methods or regulatory standards. This makes it a perfect drop-in alternative for infrastructure projects, from transport networks to commercial buildings and the installation of renewable energy such as wind turbines cement foundations and power transmission towers.
Verified, patented and ready for global partnerships
RockFuel’s technology has undergone independent chemical engineering verification and financial modeling, demonstrating both technical and commercial viability. The company holds multiple international patents and has pending further applications to ensure that the innovation is protected and ready for global licensing and industrial adoption.
The company is currently seeking strategic partnerships such as:
Cement, lime, concrete producers and limeki manufacturers aim to decarbonize operations to ensure long-term viability in a climate-positive world. Universities and research institutes interested in collaborating on materials science, industrial chemistry, or sustainability innovation, such as through the Horizon Europe collaboration. The agency focused on green infrastructure, industrial transition, climate-positive built environments and clean energy policies. Clean Technology Funds seeking commercially sound climate solutions from Impact Implice Investors and Scalable are profitable and ready to upscale.
Building towards a truly sustainable planet
The cement industry has long been viewed as incompatible with true sustainability goals. RockFuel overturns that perception. With technology that converts CO2 emissions into valuable output and cement-based infrastructure, Lockful not only reduces the impact of cement, but also converts it into one of the most climate-positive building materials available.
This innovation could reframe how construction contributes to environmental goals, not as a passive emitter anymore, but as an active agent of atmospheric carbon reduction. This allows the built environment to be a tool in the fight against climate change, providing governments and industries with truly scalable ways to build something better and cleaner.
As the world competes with decarbonization, RockFuel offers a “real zero” solution that can be implemented in one of the most challenging sectors. For policymakers, researchers and industry leaders, it represents a beacon of what is possible when circular design, energy transitions, and practical innovations converge.
This article will also be featured in the 22nd edition of Quarterly Publication.
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