Ancient Roman concrete structures have survived for thousands of years, offering researchers clues for making modern construction materials more durable. MIT startup DMAT is now commercializing technology inspired by those ancient materials, developing concrete additives designed to increase structural lifespan while reducing carbon emissions, tells MIT News.
DMAT grew from research led by MIT Associate Professor Admir Masic, who has studied the chemistry and manufacturing methods behind Roman concrete. In 2021, Masic co-founded the company to translate those findings into practical construction materials. DMAT says its technology can increase the lifespan of concrete structures by 50% while reducing carbon dioxide emissions to 40% of those associated with traditional concrete.
A key discovery came from a 2023 study by Masic and collaborators. The researchers found that ancient Roman concrete contained calcium-rich lime clasts. When cracks formed, calcium from these reservoirs dissolved and recrystallized, helping fill the openings. The team incorporated this principle into modern concrete formulations and spent a year testing their mechanical performance and durability.
DMAT has since developed proprietary technologies based on the MIT research and obtained European safety and performance certifications. Its additives can be incorporated into concrete and mortar using familiar manufacturing processes. The company also supplies customized formulations and has introduced ready-mix bagged mortars for structural restoration.
The technology is already being used in European infrastructure projects, including underground water tanks, road barriers, and pavement in Italy and Switzerland. DMAT repair mortar has also been deployed on Switzerland’s N13 motorway. The company plans to expand into the United States.
Unlike some self-healing concretes that rely on bacteria or polymers, DMAT uses materials familiar to the construction industry. That could simplify adoption and control costs.
The environmental implications are significant. Concrete is the world’s most produced material and accounts for approximately 5–8% of global carbon dioxide emissions. Extending the service life of concrete structures could reduce repairs, replacement materials, and associated emissions, bringing an ancient construction principle into modern sustainable engineering.
