Kajima Corporation (President: Hiromasa Amano), Denka Company Limited (President: Toshio Imai), and Takenaka Corporation (President: Masato Sasaki) have submitted a joint proposal for the following three development items in the concrete field of the “Green Innovation Fund Project—Project to develop technology for manufacturing concrete and other materials using CO2—” (hereinafter referred to as the “Project”), which was publicly solicited by the New Energy and Industrial Technology Development Organization (NEDO). The proposal of the consortium of 44 private-sector companies, 10 universities, and 1 research institute, with the three companies as the contractors was adopted on January 24, 2022.
The Project is a 10-year program that provides continuous support to companies and other organizations that share ambitious and specific goals and address them as management issues, from research and development and demonstration to social implementation, with the aim of achieving the goal of becoming carbon neutral by 2050.
Through the Project, the consortium with the three companies as the planned implementers aims to realize carbon-negative concrete with a high level of versatility, develop construction technology, and establish quality evaluation technology, aiming for full-scale dissemination in the real world.
At the same time, we will further promote the transition from the decarbonization stage to the “active carbon” stage by actively fixing CO2 in concrete through this technological development, thereby contributing to solving the social issue of reducing greenhouse gas emissions.
Development items of this project
1. Development of concrete to maximize CO2 emission reduction and fixation
 Research and development on the selection of materials to be used that can maximize CO2 emission reduction and fixation
 Technology development on innovative fixation test and manufacturing system for concrete to maximize CO2 emission reduction and fixation
2. Technical development of quality control and fixed quantity evaluation method for concrete to maximize CO2 emission reduction and fixed quantity