New standard for 3D-printed concrete walls: ICC 1150 sets standards for construction

The International Code Council (ICC) has published an official standard for 3D-printed concrete walls for the first time with the ICC 1150 standard. This guideline is intended to define clear structural criteria for load-bearing and non-load-bearing walls as well as shear walls in single and multi-storey buildings. The ICC is thus creating a basis for the application of 3D Automated Construction Technology (3DACT) in the construction industry and supporting the growing industry of additive concrete construction.

The standard was developed through a consensus-based process governed by the ICC’s ANSI accreditation process. The process began in January 2023 with the selection of a committee representing various industry stakeholders. In October 2023, the first virtual meeting was held to begin standard development. After several meetings, the committee approved the draft for the public comment period in October 2024.

Since December 13, 2024, interested experts have been able to view the draft and provide feedback via an official feedback form. The public review phase ended on January 27, 2025, after which the committee will analyze and discuss all comments received. The next meeting for the final revision will take place on February 14, 2025. The ICC’s aim is to ensure a transparent and inclusive process in which industry experts can actively participate.

The introduction of the new standard could simplify approval processes for 3D-printed buildings and further establish the technology. Until now, there have been no uniform regulations in many regions, which has made the use of 3D printing in the construction industry more difficult. Now companies have a basis for implementing their construction projects more efficiently and in compliance with regulations.