Prefabricated Concrete Houses

The concrete houses in prefabricated housing typically refer to prefabricated reinforced concrete houses, which adopt a factory-prefabricated + on-site assembly process, fundamentally different from the cement prefabricated panel houses with safety hazards in the past.

I. Core Process and Structural Features Using prefabricated reinforced concrete modules as the core, walls, floors, beams, columns, and other components are cast in one piece through high-precision molds at specialized production bases. Each module integrates multiple structures such as a steel reinforcement framework, insulation layer, waterproof layer, and pre-embedded pipelines. The standard module size is 6m × 3m × 3m (length × width × height), and户型自由组合 (free combination of house types) can be achieved through horizontal splicing or vertical stacking (up to 3 floors).

II. Main Advantages

1. High Efficiency: A single 30㎡ module takes only 7 days for factory prefabrication. During on-site installation, with the cooperation of 3 workers and a crane, a single module can be installed in 4 hours, and a 100㎡ house can be fully erected in just 2 days.
2. Low Cost: Taking a 120㎡ self-built rural house as an example, the construction cost of a traditional brick-and-mortar structure is approximately 180,000-220,000 yuan, while the cost of the main modules of a concrete house is only 120,000-150,000 yuan, reducing the overall cost by 30%. If a leasing model is chosen, the annual rent can be as low as 5,000 yuan per room.
3. Green and Environmentally Friendly: The factory-based production achieves a 95% recycling rate of off-cuts. There is no dust or sewage discharge at the construction site, and the construction waste is only 10% of that of traditional house construction. Environmentally friendly concrete and water-based paints are used for materials, with a formaldehyde emission level of ≤0.05mg/m³, far below the national standard (0.1mg/m³), enabling "immediate occupancy upon installation."
4. Excellent Performance: Using C30-C40 grade concrete with built-in Φ8-Φ12 steel reinforcement meshes, the compressive strength reaches 25-30MPa, 1.5 times that of traditional brick-and-mortar structures. The walls have pre-reserved slots for EPS insulation layers, improving thermal insulation performance by 40%. The modules are connected through pre-stressed bolts + welded steel plates, with a wind resistance rating of up to Level 10, a seismic fortification intensity of 7 degrees, and a warranty period of up to 70 years.

III. Differences from Cement Prefabricated Panel Houses In the past, cement prefabricated panel houses had problems such as large gaps between panels, poor sound insulation, easy water leakage, weak seismic performance, and a short service life due to the small amount of steel reinforcement used and simple construction. Modern prefabricated reinforced concrete houses, however, have completely resolved these hidden dangers through high-precision molds, integrated design, and standardized connection processes, achieving a qualitative leap in structural safety, functionality, and durability.