CarbonBuilt Wins 2021 XPRIZE!

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While concrete is both the literal and figurative foundation of society, it is also a major contributor to climate change. Already responsible for almost 10% of global greenhouse gas emissions, future demand for concrete fueled by urban growth will continue to drive emissions higher. Motivated to break this linkage, we’re commercializing the revolutionary Reversa™ technology, which cost-effectively embeds CO₂ emissions from industrial sources (like cement, bio-energy, and natural gas plants) into concrete, reducing emissions by more than 50% as compared to traditional concrete. With widespread adoption, it can deliver the gigaton-scale CO₂ reduction that we need from this sector. 

This revolutionary process prevents these emissions from reaching the atmosphere, storing them in concrete...for good. 


CarbonBuilt's core technology emerged out of the Institute for Carbon Management at the University of California, Los Angeles (UCLA). Led by Gaurav Sant, a third-generation civil engineer, the UCLA team conceptualized the potential to address climate change by embedding industrial CO₂ emissions into concrete in an economically viable fashion. 


Today, CarbonBuilt is partnering with concrete producers to grow their businesses, industrial emitters seeking to reduce CO₂ emissions, and builders and tenants to reduce the environmental impact of homes and buildings. 


The UCLA CarbonBuilt team was awarded the 2021 NRG COSIA Carbon XPRIZE, a global contest designed to foster and fund the development of breakthrough technologies that convert CO₂ emissions into usable products.


CarbonBuilt offers benefits for three core groups. For heavy industries seeking ways to reduce CO₂ emissions, our turnkey projects offer a low cost route to do so. For the building industry, we offer on-spec concrete products that help projects achieve LEED certification or other sustainability criteria. Finally, we enable concrete producers to increase profitability while differentiating from competitors by meeting a growing demand for more sustainable concrete.


Carbon Utilization 


Green Building


Concrete Producers





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570 Westwood Plaza

Los Angeles, CA  90095


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UCLA currently has these openings for Post Doctoral Researchers.


Concrete Carbonation Process Design 

Low-temperature Geochemistry with Focus on Carbonation Process


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