State of the Art and Prospects for 3D Printing Technology Applied to Concrete
By T. Maruya and T. Ishida
Concrete Journal, Vol.59, No.2, Feb. 2021
- Synopsis
- Concrete construction by 3D printing is a radical change from conventional methods and may lead to the development of new types of structures through structural optimization design, as well as contribute to labor savings and shorter construction times due to the elimination of formwork. On the other hand, a number of issues need to be addressed before practical application. These include clarifying the physical properties of concrete that is suitable for use for construction by 3D printing, developing materials to achieve the required performance levels, verification of durability, and the study of methods to ensure structural safety. To this end, a feasibility study committee was established at JCI to investigate the current state of the art of 3D printing technology applied to concrete in Japan and abroad, and a workshop was held by the committee members to create a roadmap for its practical application. This paper reports on the above themes and introduces the state of development of such technology in Japan.
- Keywords:
- 3D printing, Productivity improvement, Rationalization of construction, Roadmap, Material, Structure, Production
