2022-073 – Sustainable Concrete Mixes with Negative Carbon Footprint Incorporating Carbon Black

Standard concrete mixes, used for sidewalks and other low-strength requirement applications, currently contribute 0.18 kilograms of CO2 per kilogram of material to current greenhouse gas emissions. The majority of the concrete mix is a material known as aggregate, which causes an increase in carbon footprint, due to the release of CO2 into the atmosphere. By revisiting the materials and techniques of mixing and making the concrete, it is possible to identify more durable, environmentally sustainable, and cost-effective concrete for sidewalks and other structural applications.

Technology Description
Researchers at the University of New Mexico have proposed a new concrete with low carbon footprint and improved mechanical and durability properties leading the pathway towards sustainable infrastructure and carbon neutrality. The present invention uses carbon black sequestered from CO2, while chemical modifications using nanotechnology or other techniques have been utilized to improve the mechanical properties, durability characteristics, and enable 3D printing capabilities – providing more flexibility and automation to construction processes. Additionally, this concrete fabrication technique is more cost-effective than traditional mixing methods.




  • Reduces CO2 emissions
  • Sequesters carbon from the atmosphere
  • Establishes a negative carbon footprint
  • Enables sustainable infrastructure and carbon neutrality
  • Offers 3D-printing capabilities, providing automation to construction processes
    • Complex shapes and geometries can be introduced
  • Preliminary data shows concrete including carbon black to have low heat storage compared with conventional concrete mixes

Potential Applications

  • Infrastructure
  • Construction
  • Carbon Neutrality
  • 3D Printing

Contact Information

Name: Andrew Roerick

Email: aroerick@innovations.unm.edu

Phone: 505-277-0608