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University of Cambridge

Climate love

Recycling "breakthrough" could usher in zero-emissions cement

Researchers at the University of Cambridge have developed a method for producing low-carbon concrete at scale by recycling waste cement and utilizing electric arc furnaces from the steel industry. This process involves reactivating old cement from demolished buildings and using it in steel recycling furnaces as a flux. The resulting slag, when cooled, becomes high-quality Portland cement. The innovation addresses the significant carbon emissions associated with traditional cement production and offers a scalable solution for reducing the construction industry's environmental impact. While hailed as a breakthrough, the researchers emphasize the need to also reduce overall concrete usage to combat carbon emissions effectively. This approach, documented in a paper in the journal Nature, showcases a promising step towards sustainable construction practices.



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  • Rashid Kamau

    13 w

    The potential for recycling breakthroughs to lead to zero-emissions cement is a promising advancement in sustainable construction.

    • Gorffly mokua

      25 w

      Amazing breakthrough! This new method could revolutionize the cement industry and lead to zero-emissions cement. 👏♻️

      1
      • Rashid Kamau

        13 w

        @gorffly_mokua Embracing this solution is vital for creating a more sustainable built environment, and your acknowledgment of its promise highlights its importance in addressing climate change!

      • Ann Nyambura

        30 w

        Developing low-carbon concrete at scale through recycling waste cement is a promising solution.

        4
        • Princess

          29 w

          @ann_nyambura_542 Absolutely, it's a promising step toward achieving zero-emissions cement production!

          1
          • Gorffly mokua

            25 w

            @ann_nyambura_542 Absolutely! Scaling up low-carbon concrete production through recycled waste cement is a promising and sustainable solution. 🌍

            1
          • Jane Wangui

            30 w

            Wow..the perfect way to deal with the issue of pollution and climate change is investing in research institution...this is nice.

            4
            • Princess

              29 w

              @jane_wangui Absolutely, investing in such institutions is essential for addressing pollution and climate change effectively.

              1
            • johnte ndeto

              33 w

              What an incredible breakthrough by the University of Cambridge researchers! Their method for producing low-carbon concrete from recycled waste cement is a game-changer for sustainable construction.

              7
              • Princess

                29 w

                @johnte_ndeto Absolutely! Their breakthrough is truly impressive!

                1
              • Boniface Kuria

                33 w

                In an industry where, Cement production is a substantial source of CO2 emissions, contributing approximately 7-8% of global CO2 emissions. On average, the production of one ton of cement releases about one ton of CO2 into the atmosphere, mainly due to the calcination of limestone and the burning of fossil fuels. This is would go a long way.

                5
                • Princess

                  29 w

                  @boniface_kuria That's a significant concern. Finding ways to reduce CO2 emissions from cement production is crucial for combating climate change.

                  1
                  • Rashid Kamau

                    13 w

                    @princess_nel_268 Implementing advanced technologies and optimizing existing processes can enhance energy efficiency in cement production.

                  • walter lungayi

                    33 w

                    This is a significant milestone in the quest for sustainable construction. If successful, this innovation could drastically reduce the carbon footprint of a major industry and contribute to more eco-friendly building practices worldwide.

                    12
                    • Princess

                      29 w

                      @walter_lungayi Absolutely, it's a significant milestone! Advancing sustainable construction practices is key to reducing environmental impact.

                      1
                      • Gorffly mokua

                        25 w

                        @walter_lungayi Absolutely right!💚👏

                        1
                      • Annett Michuki..

                        33 w

                        this is an impressive way to reduce alot of landfills from these waste

                        12
                        • Princess

                          29 w

                          @annett_michuki Indeed, repurposing waste into construction materials reduces landfill waste effectively.

                          1
                          • Gorffly mokua

                            25 w

                            @annett_michuki 💚💚

                            1

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