In recent years, the 3D printing method of concrete has attracted the attention of the international academic and industrial community in civil engineering. This is due to the high capacity of this method in mechanized construction, reducing consumables and construction costs, increasing construction speed, improving compatibility with the environment in case of reducing cement consumption, and also providing the possibility of building structures with complex and special architecture. 3D Concrete printing is an additive manufacturing method in which a robot—a 3D concrete printer- places layers of fresh concrete on top of each other to create the desired geometry based on a 3D model. This concrete can be used in building structures with optimal geometry to the applied loads. This scientific meeting, which was held in coordination with the international scientific cooperation office of the University of Guilan and the liaison of international affairs of the university, Dr. Meysam Effati, and with the presentation of Dr. Abdullah Sadeghi, Ph.D. in structural engineering from the Federal Institute of Technology Zurich (ETH), 3D concrete printing and some examples of the first structures built at the international level were introduced. Also, the process of making 3D-printed concrete in the laboratory was described, and the printing and mechanical properties of 3D-printing concrete were discussed with reference to laboratory results. Moreover, the Numerical modeling of the layered behavior of 3D-printed concrete, which is obtained based on laboratory observations, was briefly mentioned. The developed model was used to check the bearing capacity of a structural wall sample made with 3D-printed concrete. In the end, the audience's questions in the reinforcement field, how to implement 3D printed concrete, access to the printer, etc. were discussed and investigated.