Kanazawa Institute of Technology and Kajima Corporation will start joint research on cement-based 3D printing.In the future, based on the "KIT x KAJIMA 3D Printing Lab" set up in Kanazawa Institute of Technology, we will proceed with research toward the realization of structures that apply environment-friendly concrete by 3D printing, while making use of the knowledge of both parties. ..
The development of 3D printing is remarkable, and in the construction field, research and development are mainly carried out overseas, and houses and pedestrian bridges are being constructed by cement-based 3D printing.Even in Japan, several companies have started research and development.
Cement-based 3D printing is to manufacture members by ejecting cement material from the tip of a robot arm and laminating it. By loading the 3D data directly into the 3D printer, a series of work from drawing creation to material production can be completed digitally, and labor saving and labor saving can be achieved compared to the conventional construction method that requires manpower.Therefore, it is expected to be effective as a solution to the urgent issue of the construction industry, such as the shortage of skilled workers and the improvement of productivity.
On the other hand, now that there is an urgent need to respond to global warming, concrete, which is the main material that emits a large amount of CO2 in the cement manufacturing process, is an environment-friendly concrete that can reduce or immobilize CO2 at each institution. Is under development.
In this joint research, we will work with Kanazawa Institute of Technology, which has a lot of knowledge in a wide range of fields such as electricity, information, and landscape planning as well as civil engineering, construction, and machinery, and construction utilizing civil engineering, construction design, construction technology, and robots. Kashima, who has knowledge of mechanization and automation, will make use of the knowledge and technology of both companies to conduct a wide range of studies on cement-based 3D printing.
The environment-friendly concrete CO3-SUICOM developed by Kashima et al. Will be applied to the material used for 2D printing. CO2-SUICOM is the world's first technology that can forcibly absorb and immobilize a large amount of CO2 in the concrete manufacturing process to reduce CO2 emissions to zero or less.For example, if a 1 cubic meter CO2-SUICOM product is modeled by 3D printing, it can contribute to -18 kg of decarbonization.In the joint research, in addition to improving productivity by 3D printing, we aim to socially implement epoch-making construction technology that realizes carbon negative by CO2-SUICOM.
On April 4st, the "KIT x KAJIMA 1D Printing Lab" was established as a research base on the Yatsukaho Research Campus of Kanazawa Institute of Technology.A robot arm type 3D printer manufactured by Swiss ABB, which is equipped with a nozzle originally developed by both parties, will be installed and trial production will begin.
In the future, Kanazawa Institute of Technology and Kashima will carry out research and development in industry-government-academia in collaboration with local governments in order to install 3D-printed products in public places and gain widespread recognition in order to popularize 3D printing in the construction field. I will proceed. In 2023, the goal is to install 3D-printed products in public places of local governments in the Hokuriku region.
