Prefabricated Reinforced Concrete House

Prefabricated reinforced concrete houses are a form of construction that involves industrial production of building components and on-site assembly, characterized by high efficiency, low cost, environmental friendliness, and flexible design.

Core Process and Structural Performance
Prefabricated reinforced concrete houses, represented by assembled reinforced concrete houses (cement houses), adopt a "factory prefabrication + on-site assembly" model. Core components such as walls, floors, and beams are cast in one piece in the factory using high-precision molds, integrating steel reinforcement skeletons, insulation layers, waterproof layers, and pre-embedded pipelines. The materials used are C30-C40 grade concrete with built-in Φ8-Φ12 steel reinforcement meshes, achieving a compressive strength of 25-30MPa, which is 1.5 times that of traditional brick-and-mortar structures. The walls are designed with EPS insulation layer slots, improving thermal insulation by 40%. Modules are connected using prestressed bolts and welded steel plates, enabling resistance to wind speeds of up to 10 and seismic fortification intensity of 7 degrees (equivalent to the destructive force of the Wenchuan earthquake).

Advantage Analysis

1. High Efficiency: Parallel operations in the factory reduce construction periods by over 60%. A single 30㎡ module can be prefabricated in the factory in just 7 days, and three workers with a crane can complete the installation of a single module in 4 hours on-site, with the entire assembly of a 100㎡ house taking only 2 days.
2. Low Cost: Taking a 120㎡ rural self-built house as an example, the cost of a traditional brick-and-mortar structure is approximately 180,000-220,000 yuan, while the cost of the main modules of a cement house is only 120,000-150,000 yuan, reducing the overall cost by 30%. In a leasing model, the annual rent can be as low as 5,000 yuan per room.
3. Environmental Friendliness: Factory production achieves a 95% recycling rate of offcuts, with no dust or sewage emissions on-site and construction waste accounting for only 10% of that from traditional construction. The materials are environmentally friendly, with formaldehyde emissions ≤0.05mg/m³, well below the national standard of 0.1mg/m³.
4. Flexible Design: Standard modules measure 6m×3m×3m and can be freely combined horizontally and stacked vertically (up to 3 floors) to create diverse floor plans, meeting the needs of rural self-built houses, cultural tourism homestays, and other applications.

Development History and Market Prospects
China's prefabricated concrete technology originated in the 1950s and regained prominence in the 21st century due to its production efficiency and environmental advantages. Currently, Chinese-made prefabricated houses are in high demand overseas, with export volumes showing significant year-on-year growth in the first four months of 2026, covering more than 150 countries and regions. Market research institutions predict that the global modular construction market will exceed $142.8 billion by 2030, with China leveraging its full industrial chain advantages to drive the export of industrialized construction.