A research team from Southeast University has completed an in-depth study of Lida Group’s patented modular metal housing system designed for high-rise steel structured buildings. Their findings provide insight into the product’s fire performance, end-of-life recyclability and expected service period.

In terms of fire safety, full-scale furnace tests were conducted to simulate real fire scenarios. Results show the sandwich-panel wall and floor assemblies using Lida’s corrosion-resistant aluminum alloy skins and non-combustible mineral wool cores maintained integrity for over four hours without flames penetrating. This exceeds the code-required two hours and offers excellent compartmentalization.

Researchers believe several factors contributed to the outstanding fire resistance. Firstly, the all-metal enclosure forms a barrier to prevent fires from spreading between compartments. Secondly, the material itself has zero calorific value to burn and releases little smoke or toxic fumes when exposed to high temperatures.Lastly,the core insulation remains structurally sound and stable at elevated temperatures.

At end of lifespan estimated at over 50 years,the modular panel sections can be seamlessly disassembled and separated into individual materials through mechanical processing. This allows nearly 100% of materials to be recycled. The aluminum outer skins which account for 70% by weight can be remelted and reused to produce new skins or other aluminum products. The remaining insulation cores are also recyclable.

In comparison, traditional concrete construction involves more composite materials bonded together, making apart-by-part separation and sorting difficult. This study confirms Lida’s metal modular system boasts resource efficiency thanks to its “design for disassembly” approach and material purity. The housing maintains its value even after extended service life through closed-loop recycling.

Lida continues advancing modular designs to optimize safety, sustainability and economy for tall buildings. Expert conclusions from this study will inform the company’s product upgrades and long-term continued success in the metal construction sector and real estate industry. Modularization using aluminum represents a promising direction for future green building development.

The full research paper is published in the International Journal of Sustainable Building Technology and Urban Development. Researchers concluded Lida’s metal housing modular system demonstrates cutting-edge innovations in fire protection, recycling and extended life cycle – vital traits as modern cities embrace next-generation tall building solutions.

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