Factory-Prefabricated Concrete House Production
Factory-prefabricated concrete house production is a construction method that completes the manufacturing of building components in a factory through industrialization and assembles them into houses on-site. It is characterized by high efficiency, environmental protection, and high quality.
Core Processes and Technical Systems
The core process of factory-prefabricated concrete house production is based on modular production, breaking down buildings into independent modules (such as concrete house modules) and completing the integrated manufacturing of structures, electromechanical systems, interior decoration, and exterior finishes in the factory. For example, the three-dimensional factory of China Construction HaiLong Intelligent Construction Industrial Park can deliver 20,000 to 30,000 modules annually through assembly line operations, achieving over 70% of the processes completed in the factory. In terms of technical systems, prefabricated concrete structure technology is adopted, connecting components through nodes and joints to meet requirements for load-bearing capacity and stability. Connection methods include grout-sleeved connections, lap connections, and welding connections, ensuring structural safety and reliability. Additionally, supporting technologies cover the integrity of doors and windows and the one-time completion of installation and decoration, further enhancing building quality.
Production Advantages
- Efficiency Improvement: Factory production and on-site construction proceed simultaneously, reducing construction time by over 60%. For example, a project that would take one year to complete with traditional construction methods may only take four months with prefabricated concrete technology.
- Environmental Protection and Energy Efficiency: Construction waste emissions are reduced by over 75%, material losses by over 25%, on-site electricity consumption by 60%, and water consumption by 66%. This is attributed to the precise cutting and recycling of materials in the factory.
- Quality Control: Factory assembly lines achieve millimeter-level precision control, significantly improving waterproofing, sound insulation, and earthquake resistance. The reuse rate of modules exceeds 90%, reducing long-term maintenance costs.
Application Scenarios and Typical Cases
This technology has been widely applied in affordable housing, urban renewal, campuses, hospitals, hotels, and other fields. For example, China Construction HaiLong's MiC technology has been implemented in 137 projects across 15 provinces and 24 cities nationwide, covering a total construction area of 6.12 million square meters. Typical cases include:
- China Construction HaiLong: Producing concrete house modules in the Intelligent Construction Industrial Park in Shenzhen, Guangdong, achieving the integrated completion of structures, electromechanical systems, interior decoration, and exterior finishes.
- China Construction Science and Industry: Completing over 90% of the production work for steel structure modules on the intelligent production line in Huizhou, Guangdong, demonstrating technical adaptability.
Factory-prefabricated concrete house production, through the combination of industrialization and on-site assembly, provides an efficient, environmentally friendly, and high-quality solution for the construction industry and represents an important direction for future building development.
