What Are the Materials for Prefabricated Houses
The main materials for prefabricated houses include basic materials such as cement, gravel, and cold-drawn wires, as well as structural materials like steel structures, concrete, and wood, with a preference for new eco-friendly and recyclable materials.
The basic materials of prefabricated houses mainly consist of cement and gravel, which are mixed to form the core structure of prefabricated panels. Cement, as a cementitious material, is mixed with gravel (aggregate) in a certain proportion and then poured into molds to form prefabricated panels with load-bearing capacity. Cold-drawn wires are key load-bearing materials in prefabricated panels, typically high-strength steel wires or rebars. After cold-drawing treatment, their tensile strength is significantly enhanced, improving the crack resistance and overall stability of the prefabricated panels, especially playing a core supporting role in structures such as floors and walls.
From the perspective of structural forms, prefabricated houses mainly fall into three types:
- Steel structures: These use steel (such as H-beams and square tubes) as the main framework, characterized by light weight and high strength. Steel can be modularly produced, facilitating ocean transportation and assembly in high-rise buildings, with short construction periods and excellent seismic performance. For example, some overseas prefabricated houses adopt light steel keel systems for rapid construction through bolt connections.
- Concrete structures: These primarily use prefabricated concrete components (such as floor slabs, wall panels, and beams and columns), which are assembled on-site to form a complete structure. Concrete materials offer a more traditional living experience and are well-accepted in the domestic market, especially suitable for low-rise residential or commercial buildings. Their advantages include strong durability and good sound insulation and thermal insulation, but they are relatively heavy, requiring consideration of transportation and lifting costs.
- Wooden structures: These use engineered wood (such as glulam and oriented strand board) or solid wood as materials, assembled through mortise-and-tenon joints or metal connectors. Wooden structures stand out for their eco-friendliness and good thermal insulation properties, but require attention to moisture and fire protection treatments, often used in low-rise villas or vacation homes.
In addition, the materials for prefabricated houses emphasize eco-friendliness and recyclability. During factory prefabrication, main materials such as steel, concrete, and wood can be produced in a standardized manner, reducing on-site construction waste. Some companies use recycled aggregate concrete or biodegradable insulation materials to further reduce environmental impact. For example, cold-drawn wires can be recycled and melted down for reuse after house demolition, and wooden components can be processed into biomass fuel, aligning with the concept of a circular economy.
In summary, the material selection for prefabricated houses balances structural performance and eco-friendly requirements, achieving efficient and sustainable construction models through modular design and industrial production.
