Pure concrete is prone to breakage, so concrete needs to be mixed with steel in the building. The same is true for the emerging 3D printed building technology. When performing concrete 3D printing, it is necessary to stop and insert steel bars in the load-bearing part, but this also means that building automation cannot be fully realized. Kai Parthy, a German fiber expert and inventor, is trying to simplify and automate the 3D printing process. His approach is to automatically insert the plastic material BMSF (bionic mesh steel fiber) into the concrete during the printing process to enhance the building. The hardness and toughness of the object.
Mixing steel or plastic fibers into concrete can increase the hardness and toughness of the material, but this material is often suitable for use on the ground floor and cannot be used to build load-bearing structures like ceilings. The BASF materials developed by Kai Parthy exist in small pieces that can be evenly inserted into any concrete shape, ranging in size from 1 to 10 cm, to ensure that they are suitable for all directions represented by the XYZ axis. BMSF materials combined with concrete can change the tensile strength and durability of concrete.
Due to the high ductility and adaptability of BMSF materials, they can be rolled in a loop like a wire and can be cut. Kai Parthy said that users can use BMSF fiber materials to create high-load concrete (maximizing steel/concrete ratio) to form an indestructible high-toughness concrete material that can be used to build seismic structures.
Regarding how BMSF fiber materials are used in 3D printing construction technology, Kai Parthy's idea is to integrate the process of inserting BMSF fibers with 3D printing, for example by using a robotic arm with two printing nozzles and one nozzle for deposition. The concrete material, the other nozzle simultaneously deposits the BMSF fibers into the concrete layer, thereby completely automating the construction process of the load-bearing building structure.
Although this idea still needs to be proved, the BMSF bionic mesh steel fiber material developed by Kai Parthy and the idea of ​​mixing with concrete materials have contributed to the application of 3D printing construction technology. At present, related technologies are already applying for patents.
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The Wire Loop Box will need to fixed to the formwork and the flexible folded wires will need to be pulled out to make a connection when ready on site. The load will be transferred from one concrete panel to the other panel via wire rope loop. High strength Galvanized Steel Wire Rope will need to be crimped by using compression sleeves / Ferrule to form a loop at one end & to transfer a load axially through other end. The load is transferred from one concrete panel to the other panel via wire rope loop.
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