Polyuse Inc. (Head office: Minato-ku, Tokyo; Representative Directors: Takuya Iwamoto / Wataru Ooka; "Polyuse") took part as a principal committee member in drafting Japan's first "Technical Guidelines for Concrete Structures Using Construction 3D Printer Stay-in-Place Formwork (Draft)," released by the Concrete Committee of the Japan Society of Civil Engineers (JSCE) in August 2025.
The guidelines reflect knowledge provided by Polyuse, including construction data as well as design and construction examples.
(*According to JSCE research)
Background and significance of the guidelines
Construction 3D printers are attracting attention as a new technology that enables labor savings and shorter construction periods, and JSCE has now drawn up Japan's first "Technical Guidelines for Stay-in-Place Formwork Construction Using Construction 3D Printers (Draft)."
Polyuse has a track record of more than 200 real-world deployments and projects, and is driving cutting-edge research and development. Construction companies and precast manufacturers across Japan are also pursuing research, and the use of construction 3D printers is expanding rapidly across the industry. This made it urgent to establish standards that allow quality and performance to be evaluated objectively.
A major step forward in these guidelines is the introduction of a mechanism that requires proof of quality and safety for all construction 3D printer products, not only those made in Japan. This prevents products whose quality has not been verified from entering the market and establishes an industry standard that ensures transparency and reliability for users selecting construction 3D printer products. The guidelines mark an important step toward greater reliability in the construction 3D printer market, unifying quality and safety standards, test methods, and the basic principles of design and construction. With this as a catalyst, the technology's application to the construction industry's labor shortage and to rapid construction and recovery work is set to accelerate.
Polyuse provided real-world construction data and expertise for Japan's first comprehensive technical guidelines
As comprehensive technical guidelines, they systematically cover the entire life cycle of structures using stay-in-place formwork, from structural planning, design and construction through to quality control and maintenance, providing a foundation for the sound development of the industry.
Polyuse worked on the drafting process for about a year and a half. By providing its data, which accounts for about 90% of construction projects in Japan, Polyuse contributed to developing evaluation criteria for the accuracy, durability and constructability of stay-in-place formwork. Through this work, a practitioner's perspective has been built into the standards that ensure safety and quality.
Polyuse and the future of the construction industry
Going forward, Polyuse will continue to promote and strengthen the groundwork needed in each market to demonstrate and spread construction technology using construction 3D printers. In doing so, we aim to help solve the construction industry's challenges and support its sustainable development, contributing to the spread of safe, highly reliable technology and to technological innovation.
▪Company overview
Guided by our mission of "updating the construction industry with technology," Polyuse provides an integrated offering that spans the research, development and supply of construction 3D printers through to software, materials and construction support.
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Company name: Polyuse Inc.
Location: 2-2-15 Hamamatsucho, Minato-ku, Tokyo
Representative Directors: Takuya Iwamoto / Wataru Ooka
Founded: June 2019
URL: https://polyuse.xyz/
X (formerly Twitter): https://twitter.com/polyuse
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