Book Description
Three-dimensional (3D) concrete printers are extensively portable; they can save construction time and reduce labor costs. This technology is incredibly capable of creating complex elements with different structural scales. Some 3D concrete printers use a gantry system, while other printers may use a robotic arm or generalized Stewart platforms. These systems allow the freedom of movements to create desired concrete structures. The structures are printed layer-by-layer using additive manufacturing methods to ensure the overlay between the concrete layers. The components of a 3D printer play an important role in the print quality. For instance, the nozzle shape has a direct influence on the overall form of the structure, stress distribution, and durability of the printed element. Since the 3D concrete printers are at a very early development stage, part optimization is crucial for the ease of construction. Therefore, the first part of this research study focuses on developing different nozzle forms, extruder control system, and pump parameters. The outcome of the first part provides insights into 3D concrete printing protocols and can be used to optimize the process. The second part of this study focuses on the development of a novel composite material that meets the requirements used in the construction field. This research focuses on 3D concrete printing features, such as extruder and nozzle design, and their effect on the printed structures, while evaluating printing strategies using a developed concrete mixture that has the desired mechanical properties.
