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CO2-cured low-emissions cement

Low emission process for cement and concrete production

June 2019
Gallery CO2-cured low-emissions cement 1
Gallery CO2-cured low-emissions cement 1


Solidia Cement™ and Solidia Concrete™ are two features of a process that reduces the carbon footprint associated with cement by up to 70%.

The solution consists of the production of a low-lime, calcium silicate cement (CSC) as a replacement for ordinary Portland cement (OPC), and the curation of concrete made with CSC by it reacting with CO2 rather than H2O. CSC can be made in existing cement kilns, consumes less limestone and requires less energy than OPC all while reducing CO2 emissions from the kiln by 30 to 40%. When CSC-based concrete is cured with CO2, it costs less to produced, cures in less than 24 hours versus the traditional 28 days and has a higher durability than its OPC counterparts. Together, the low-lime cement/CO2-cured concrete technologies offer the potential to reduce the carbon footprint of cement and concrete and the water used to form concrete products can be reclaimed and recycled.

  • /
Label Date June 6, 2019
Parent company Air Liquide
From United States
Maturity stage Small scale commercialization
Looking For Visibility, new clients, funding, partners

Implementation Stories

CO2-cured low-emissions cement by Solidia Technologies
Implemented by Elsmere Fire Company in Elsmere (United States) in 2019

Elsmere Fire Company, a fire department located in Delaware, commissioned a contractor (Next Level Hardscaping) for the installation of a new surface of 1000 square foot in front of their fire station. They teamed up with a paver manufac- turer – EP Henry – and Solidia to deliver the infrastructure with low carbon cement. At first, the installation of 4,806 pavers (= 8,900 kg of material) was also chosen as a water management paving system designed to address flooding issues in Delaware.


2.2 metric t of co2 avoided


The environmental benefits

  • A faster curing process (24 hours vs 28 days).
  • Concrete manufacturing with near zero waste.

The Financial benefits

  • Solidia Cement reduces energy usage at the cement kiln by 30% compared to the production of OPC.
  • Solidia Concrete saves up to 80% of water usage.

Activity Region

  • /
  • Headquarters
  • Activity

Company Profile

Solidia Technologies

Combined Solidia's cement & concrete reduces the carbon footprint of concrete up to 70%, fuel consumption by 30% & water use up to 80%.

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Headquarters Piscataway, NJ 08854, USA

Parent company

Air Liquide

A world leader in gases, technologies and services for Industry and Health.

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Headquarters 75007 Paris, France
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The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator Solidia Technologies has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.