Lightweight Cement Prefabricated House
Lightweight cement prefabricated houses are a type of housing that uses prefabricated components as the main construction form. They are characterized by modularity and rapid construction, making them suitable for temporary buildings, residential housing, and industrial scenarios, although they have limitations such as weak earthquake resistance.
Structural and Material Characteristics
Prefabricated components are based on materials such as cement, steel bars, sand, and admixtures. Some products use EPS sandwich panels or rigid polyurethane sandwich panels to achieve lightweight and thermal insulation properties. For example, the wall panels of lightweight EPS cement prefabricated houses have a thickness of 60-200 millimeters, offering waterproof and flame-retardant properties, and can be quickly assembled through modular design. Their core advantage lies in standardized factory production, which ensures high dimensional accuracy of components and minimal on-site assembly errors, significantly improving construction efficiency.
Construction Efficiency and Cost Advantages
After being manufactured in the factory, prefabricated components are transported to the site and assembled through splicing or hoisting, reducing the construction period by more than 30% compared to traditional methods. In extreme cases, some small houses can be built within a day. Additionally, factory production reduces on-site labor requirements and material waste, lowering overall costs by approximately 15%-20% compared to traditional construction. Some products support multiple relocations, further reducing long-term usage costs.
Application Scenarios and Market Trends
In China, these houses were initially used for residential floor slabs, roof insulation layers, and temporary buildings, with widespread adoption in residential structures built before 1985. Modern applications have expanded to include villas, warehouses, mobile houses, and container model houses, with significant growth in demand in emergency rescue and tourism sectors. Since 2022, China has implemented renovation policies for existing prefabricated houses, focusing on repairs and upgrades rather than demolition, except for dangerous buildings. In the export market, the export value of mobile houses from Guangzhou and Shenzhen ports increased by 38.1% and 19.6%, respectively, in the first four months of 2026, indicating strong international demand.
Technical Limitations and Improvement Directions
Traditional lightweight cement prefabricated houses have drawbacks such as weak earthquake resistance and poor sound and thermal insulation, with a service life of approximately 30-50 years. To enhance performance, prefabricated buildings use steel-concrete integrated pouring (such as CMC composite modules) to improve structural stability, with some products meeting earthquake resistance requirements of magnitude 8. Meanwhile, industrial standards and digital precision are driving the transformation of housing manufacturing towards "factory-based" production, such as using BIM technology to optimize component design and reduce on-site adjustments.
