Climate love
Image of CarbonBuilt


Climate love

For massively reducing concrete's climate footprint

Concrete has been labeled the most destructive material on earth, due to its widespread use and the high carbon emissions from the cement-making process.
The American start-up CarbonBuilt claims to have found a way around that problem.
The company's Carbon XPRIZE-winning technology reduces concrete’s carbon footprint by 70-100%, compared to traditional concrete blocks – and they don’t cost more to make.
The blocks are already in production, and will be used by C&C Masonry in the construction of several municipal projects across the state of Alabama.
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CarbonBuilt’s technology replaces most of the expensive, high-carbon Portland cement used in concrete manufacturing with a proprietary low-cost cement alternative made from widely available, low-carbon materials. These materials harden by chemically reacting with CO2, piped into the curing chamber from an onsite furnace that also generates heat needed for the process.
The furnace uses waste biomass that would have otherwise produced carbon emissions. This process not only strengthens the blocks, but also permanently stores the CO2 in solid form.

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  • Sarah Chabane

    38 w

    Pretty impressive and really impactful to decarbonise thebuilding industry!

    • johnte ndeto

      38 w

      This will surely have a positive impact on climate

      • We Don't Have Time

        38 w

        Dear Markus Lutteman Your climate love has received over 50 agrees! We have reached out to CarbonBuilt by email and requested a response. I will keep you updated on any progress! To reach more people and increase the chance of a response, click the Share button above to share the review on your social accounts. For every new member that joins We Don't Have Time from your network, we will plant a tree and attribute it to you! /Adam, We Don't Have Time

        • Esther Wanjiku

          38 w

          This is very encouraging

          • Rashid Kamau

            38 w

            This is such a remarkable achievement!

            • Jane Wangui

              35 w

              @rashid_kamau we need to do all that we can to reduce carbon footprint.We must cover every angle.

            • Ann Nyambura

              38 w

              A practical and scalable approach to reducing the carbon footprint of one of the most widely used construction materials.

              • Annett Michuki..

                38 w

                establishing a solid way of lowering emissions is a great achievement

                • Rukia Ahmed Abdi

                  38 w

                  CarbonBuilt's innovative technology presents a promising solution to one of the most significant climate challenges posed by concrete production. By reducing concrete's carbon footprint by 70-100% compared to traditional methods, without increasing production costs, it offers a sustainable alternative for the construction industry

                  • Tabitha Kimani

                    38 w

                    This is a great contribution towards decarbonizing the construction industry.

                    • Gorffly mokua

                      38 w

                      This is commendable and as it will positively contribute to fight against climate change.

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