Prefabricated Concrete Integral House

Prefabricated concrete integral houses are a form of construction that involves industrial production of building components and on-site assembly, offering advantages such as short construction periods, low costs, high safety, and environmental protection and energy efficiency, but they have limitations in terms of styling and require the selection of reliable brands.

Construction Method
Prefabricated concrete integral houses adopt a combined model of factory prefabrication and on-site assembly. The factory produces components such as wall panels, floor slabs, beams, and columns in advance, which are then transported to the construction site and assembled using lifting equipment to form a complete building. For example, the main structure of a 200-square-meter villa can be assembled within 4 hours, and a two-story reinforced concrete shell house can be completed in about two weeks, with construction efficiency far exceeding that of traditional methods. The core logic is to break down the building into standardized components, reduce on-site wet operations through industrial production, and achieve a “building block”-style construction.

Advantages

1. Shortened Construction Period: Factory-prefabricated components can be produced simultaneously, significantly reducing on-site assembly time and saving 90% of the time compared to traditional construction.
2. Reduced Costs: High material utilization and reduced labor requirements result in a 30% reduction in overall costs. For example, the construction cost of the main structure of a 100-square-meter house is approximately 100,000 to 120,000 yuan, which is 30% cheaper than that of a brick-concrete structure.
3. Enhanced Safety: Using C35 concrete and thickened steel frames, these houses can withstand winds of up to 12 levels and experience only 3 centimeters of structural displacement during earthquakes. In the Gansu Jishishan earthquake, 2,000 resettlement houses were built within 72 hours and passed safety tests.
4. Environmental Protection and Energy Efficiency: The pre-embedded insulation layer design reduces winter heating costs by 50%, with formaldehyde content being one-third of the national standard; construction waste is reduced by more than 70%, meeting green building standards.

Types and Technologies
The main types include panel-type assembly (centered around wall panels and floor slabs, with limited design flexibility), box-type assembly (combining prefabricated functional units, with a 50%-70% increase in construction speed but high transportation requirements), and frame-type assembly. The technologies cover prefabricated concrete structures and steel structures, with components including prefabricated products such as beams, slabs, walls, and columns, supporting modular design and rapid installation.

Precautions

1. Styling Limitations: Standardized components result in relatively fixed building exteriors. Special designs such as rounded balconies require additional customization, increasing costs.
2. Brand Selection: It is essential to choose reputable brands (such as Broad Homes) with a 70-year warranty and seismic resistance reports to ensure structural safety and after-sales service.