Prefabricated Cement Module House

The prefabricated cement module house is an assembled building system centered around prefabricated reinforced concrete modules, combining factory production with on-site assembly. It features high efficiency, safety, cost-effectiveness, and environmental friendliness.

1. Technical Principles and Production Process The core components of the house (walls, floors, beams, and columns) are cast in one piece in the factory using high-precision molds. Each module integrates a steel reinforcement framework, insulation layer, waterproof layer, and pre-installed piping system. Modules are connected using prestressed bolts and welded steel plates to form an overall frame structure. Standard module dimensions are 6m×3m×3m (length, width, height), allowing for户型 (floor plan) combinations through horizontal splicing or vertical stacking (up to 3 floors), though circular or other irregular designs are difficult to achieve.

2. Performance Advantages

• Construction Efficiency: The main framework of a 100-square-meter house can be completed in 1-2 days, 90% faster than traditional construction. A single 30㎡ module takes only 7 days for factory prefabrication and can be installed on-site by 3 workers with a crane in just 4 hours.
• Safety Performance: Each module weighs 20 tons and uses C30-C40 grade concrete with Φ8-Φ12 steel reinforcement mesh, achieving a compressive strength of 25-30MPa (1.5 times that of traditional brick-and-mortar structures). It is designed to withstand seismic intensity of 7 degrees and wind resistance of up to level 10 (with some cases reaching level 12).
• Cost-Effectiveness: The main structure of a 100-square-meter house costs approximately 120,000-150,000 yuan, comparable to brick-and-mortar structures, but with a 30% reduction in overall costs. The lifespan is up to 50 years, and the cost of reinstallation after disassembly and reuse is only 20%.
• Environmental Characteristics: Factory production reduces construction waste by 90%, with a 95% recycling rate for offcuts. There is no dust or sewage discharge on-site. Environmentally friendly concrete and water-based paints are used, with formaldehyde emissions ≤0.05mg/m³ (far below national standards).

3. Application Scenarios and Cases Suitable for rural self-built houses, cultural tourism homestays, relocation housing, and high-rise buildings (such as the 2023 Shenzhen "Huazhang Xinzhu" high-rise project). Typical cases include: the Beijing Fengtai relocation project halving the construction period; a Fujian Zhangzhou homestay surviving an 11-level typhoon without wall damage; a Hengshui rural project improving seismic performance by 40%; and the 2026 Zhangzhou Nuclear Power Unit 4 project using 454.289 tons of prefabricated modules for construction.

4. Precautions

• Insulation and soundproofing configurations should be adjusted according to climate (e.g., additional insulation layers are needed in northeastern regions).
• Ensure ISO9001 certification is obtained and select concrete with a grade of at least C30 to avoid issues such as joint leakage caused by substandard materials from small manufacturers.