construction

Kubik is an African startup transforming hard-to-recycle plastics into sustainable construction materials. Addressing the pressing demand for housing and infrastructure across Africa, Kubik builds eco-friendly, modular, and cost-effective residential, commercial, and public facilities.

Solidia Technologies has patented cement technology that utilizes the same raw materials and equipment as traditional Portland cement but with reduced limestone and lower production temperatures. This innovation slashes CO2 emissions from kilns by 30% compared to conventional Portland cement production and up to 50% of the overall carbon footprint of cement and concrete. Solidia Cement® also contains low-limestone cement that achieves strength through CO2 reaction rather than water.

Brimstone has developed an industrial process for producing industry-standard Portland cement with significantly less carbon emissions. Brimstone’s decarbonized process is a breakthrough in cement production, making industry-standard Portland cement with carbon-free calcium silicate rock instead of limestone. Brimstone cement is chemically and physically identical to conventional Portland cement, with the same quality and performance. Portland cement contains two core products: Portland cement clinker and supplementary cementitious materials (SCM).

EcoCocon has developed an alternative wall panel system that is 89% straw and 10% timber. The company combines straw construction with modern technology to improve performance and achieve exceptional insulation. EcoCocon’s goal is to use as little as possible to protect forests from over-exploitation. The wood is derived from sustainable forestry, and the straw is sourced from local farms. These materials contain no glues and do not undergo any chemical treatment throughout the construction process. The walls are custom-made to fit any building design.

Sublime Cement™ is a carbon-neutral alternative to ordinary Portland cement (OPC). Sublime’s novel cement process uses electrochemistry to extract reactive calcium (Sublime Lime™) and Silicates from abundant raw materials that are then blended into a final cement. In the electrochemical process, entire parts of non-carbonate rocks are converted into cement at ambient temperatures. The process uses carbon-free feedstocks and low temperatures, thus, Sublime Cement does not emit CO2. This cement is a drop-in replacement for OPC, meeting or exceeding construction performance standards.