From Rome to Brevik: The Global Race to Decarbonize the World’s Most Used Material

October 23, 2026 — Cement is the silent giant of global infrastructure. It is the backbone of modern civilization, yet it is also a climate heavyweight, responsible for approximately 7 to 8 percent of global CO2 emissions. For decades, the construction industry has been trapped in a high-carbon paradigm, but a new wave of innovation—ranging from ancient Roman chemistry to state-of-the-art carbon capture—is beginning to transform concrete from a climate liability into a carbon sink.

The Roman Blueprint for Modern Durability

The secret to a more sustainable future may lie in the past. At the Swiss Autobahn N13 in Graubünden, engineers are not using high-tech polymers to patch aging infrastructure; they are using a technique perfected nearly 2,000 years ago by the Romans.

The material is supplied by Dmat, a spin-off from the Massachusetts Institute of Technology (MIT). While many modern bridges and highways crumble after mere decades of exposure to the elements, the Roman Pantheon stands as a testament to unparalleled structural longevity. In 2023, MIT researcher Admir Masic and his laboratory finally cracked the code: the Romans incorporated quicklime clasts into their mortar. When water penetrates a crack, the lime reacts to fill the fissure with new mineral deposits, effectively "healing" the concrete.

Modern concrete lacks this self-repairing mechanism. When water infiltrates a crack, it accelerates the corrosion of the internal steel reinforcement, leading to structural degradation. By reintroducing Roman principles—without relying on synthetic bacteria or plastics—Dmat is shifting the industry’s focus from reactive repair to proactive durability.

According to the company, their mineral-based additives and repair mortars can extend the lifespan of a structure by up to 50 percent. This is not just a triumph of engineering; it is a climate strategy. By doubling the lifespan of a bridge or a highway, the total CO2 footprint of that structure is slashed by roughly 40 percent, as the need for carbon-intensive reconstruction is deferred for decades.

Chronology of the Concrete Revolution

The transformation of the construction sector is moving from experimental lab settings to industrial-scale implementation.

• 2021: Admir Masic and Paolo Sabatini co-found Dmat to commercialize MIT’s findings on Roman-style concrete.
• 2023: Scientific verification of the Roman "self-healing" mechanism is published, triggering a wave of interest from infrastructure developers.
• 2025: Heidelberg Materials inaugurates the world’s first industrial-scale carbon capture facility for cement in Brevik, Norway.
• 2025: MIT researchers demonstrate the "ec³" supercapacitor, a concrete-based energy storage technology, in the journal PNAS.
• 2026: French construction giant NGE (via its subsidiary Agilis) begins using carbon-sequestering additives from the startup Paebbl in heavy infrastructure projects.
• 2027 (Projected): Holcim plans to integrate thermal energy batteries into its cement plants to replace coal and gas with carbon-free heat.

Supporting Data: The Scale of the Challenge

Humanity consumes roughly 30 billion tons of concrete annually, making it the most utilized material on Earth after water. While concrete has a lower carbon intensity per ton than steel or aluminum, its sheer volume makes it a primary driver of anthropogenic climate change.

Research published in Science in early 2025 by a team from UC Davis and Stanford underscores the potential for a paradigm shift. If traditional building materials were replaced by carbon-sequestering alternatives, the sector could store up to 16 billion tons of CO2 annually—roughly half of current annual human emissions.

The math is compelling:

1. Mineralization: If concrete plants shifted just 10 percent of their aggregate production to carbonate-based materials, the industry could sequester one billion tons of CO2 per year.
2. Abbots and Waste: Neustark, an ETH Zurich spin-off, is currently scaling its process of pressing biogenic CO2 into demolition concrete. With over one billion tons of demolition waste produced annually, this is the largest underutilized carbon storage stream in the world.
3. The Energy Storage Frontier: The "ec³" technology developed at MIT has evolved rapidly. In 2023, it required 45 cubic meters of concrete to store the daily energy needs of a household; by 2026, that requirement has shrunk to just five cubic meters—roughly the size of a standard basement wall.

Official Responses and Strategic Pivot

The path to decarbonization is not without friction. In the United States, several climate-tech startups have faced significant headwinds. Following political shifts in Washington, major funding commitments for clean cement innovators, such as the $189 million grant for Brimstone, were abruptly paused.

Despite this, the private sector remains undeterred. Brimstone, which utilizes a carbon-neutral electrochemical process to create cement without limestone, continues to push forward with its Reno demonstration plant, scheduled for 2028.

In Europe, the strategy is more institutionalized. Heidelberg Materials has navigated the "teething problems" of its Brevik CCS (Carbon Capture and Storage) plant, which now operates at nearly full capacity, capturing over 50 tons of CO2 per hour. The company is already scaling this model, with a massive 800,000-ton-per-year capture facility planned for Padeswood, Wales, by 2029.

"We are moving toward a tiered approach," says an industry analyst. "First, reduce the clinker content. Second, use carbon-sequestering aggregates. Third, transition to renewable thermal energy. Finally, capture the remaining emissions that are chemically unavoidable."

Implications for the Future of Infrastructure

The implications of this shift are profound. We are transitioning from an era where "durable" meant "static" to an era where infrastructure is an active participant in the climate solution.

1. The "Unavoidable" Remainder: It is critical to note that even with the most efficient production methods, the calcination of limestone inherently releases CO2. Therefore, carbon capture (CCS) is not a "get-out-of-jail-free card" for fossil fuel usage, but a surgical tool for the specific, unavoidable chemical process of cement production.
2. Economic Competitiveness: The primary barrier remains the low cost of "dirty" concrete. Without aggressive carbon pricing or regulatory mandates, the transition will remain localized to early adopters. However, as the cost of carbon credits rises, the value proposition of startups like Dmat and Neustark becomes increasingly attractive to major developers.
3. The European Lead: Currently, Europe holds a significant lead in the deployment of these technologies. From the repair of the N13 in Switzerland to the carbon-storage facilities in the North Sea, the continent is positioning itself as the global hub for sustainable construction.

Conclusion: Concrete as a Solution

Concrete is often painted as a climate villain, but the latest developments suggest that it is one of our most potent tools for atmospheric restoration. By integrating carbon-sequestering minerals, embracing the longevity of Roman engineering, and scaling industrial capture technology, the construction industry is undergoing its most significant revolution since the invention of Portland cement.

As the world continues to urbanize, the challenge will be to ensure that the cities of tomorrow are not built on the environmental debt of today. With 2030 targets looming, the industry is no longer waiting for a miracle; it is pouring one, layer by layer, into the foundations of our future.