In 2021, a 10-story modular building was erected in Changsha, China, in just 28 hours and 45 minutes. This world record was remarkable because it wasn't a model, but a habitable and safe structure, marking a milestone in the history of modern construction and the use of modular techniques.
The Broad Group was responsible for the project and documented the entire process on video, which was then shared in the media and on social networks. The prefabricated stainless steel modules arrived ready for assembly, integrating electrical and plumbing systems. More than 100 workers participated in the project, supported by three main cranes, achieving a rate of three floors per hour in an assembly that resembled an industrial assembly line more than a traditional construction site.
The structure was built using B-CORE Slab, a lightweight, demountable, and highly earthquake-resistant material. This approach allowed the building to be immediately habitable, reducing construction time and errors, and demonstrating how prefabrication can be a sustainable and efficient housing solution. Furthermore, the modular design allows for the building to be disassembled and relocated if necessary.
The result was a safe, habitable, and sustainable building, accessible to the public just like any conventional building. Beyond the speed record, this project sparked a debate about how modular construction can be a viable alternative to address the housing shortage in various parts of the world, offering speed, safety, and a reduced environmental impact.
Source: https://www.infobae.com


