The Japanese construction industry is encountering serious problems, such as a lack of technicians and productivity issues caused by smaller workforces. To help alleviate these problems, we have been jointly researching 3D concrete printing with Kanazawa Institute of Technology. This involves a robot arm pouring out layer after layer of cementitious materials to create concrete parts. Using this technology can help increase the efficiency of all stages in a construction project, from creating construction blueprints to producing concrete parts. We have also begun incorporating our carbon-capture concrete, CO₂-SUICOM, in our 3D printing. Our research will increase productivity in the construction industry as a whole while also reducing the carbon footprint of construction projects.