Printable Hollow Concrete Beams by 3D Concrete Printer

3D printers are constantly developing and have a wide range of uses. Today, it is actively used in many fields, from the production of implants and prostheses to the production of jewelry. This technology, which is widely used in civil engineering in areas such as building element production, sustainability, and building construction offers several advantages over conventional concrete pouring and processing methods. Decreasing material waste, decreasing labor costs, freedom and originality in design, and saving time are among these advantages. In this context, 3DCP compared to traditional methods, it reduces the use of materials and makes the construction process more efficient since it is designed with different internal patterns and spaces. This study focuses on the printing process of hollow concrete beam designs in 3 different patterns with 2 different mixtures. Crushing between the layers of beams printed with 3D concrete printing, layer height, and printability and fresh state tests of the mixtures were examined.