Prefabricated Reinforced Concrete House

A prefabricated reinforced concrete house is a type of fully framed shear-wall structure house made of prefabricated reinforced concrete in a factory and assembled on-site, featuring high efficiency, cost-effectiveness, environmental friendliness, and flexibility.

Core Process and Structure
The house is cast in one piece in a factory using high-precision molds to form core components such as walls, floors, beams, and columns. Each module integrates a steel reinforcement framework, insulation layer, waterproof layer, and pre-installed piping system, creating standardized 'building blocks'. The structure uses C30-C40 grade concrete with built-in Φ8-Φ12 steel reinforcement mesh, 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, which, when embedded on-site, improve thermal insulation by 40%, providing warmth in winter and coolness in summer. The modules are connected using pre-stressed bolts and welded steel plates to form an integrated frame, with a wind resistance rating of Level 10 and a seismic fortification intensity of 7 degrees, capable of withstanding damage similar to that of the Wenchuan earthquake.

Advantage Analysis

1. High Efficiency: A single 30㎡ module can be prefabricated in the factory in just 7 days. On-site, three workers with a crane can install a single module in 4 hours, and a 100㎡ house can be fully constructed in just 2 days, significantly shortening the construction period.
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 for a concrete house is only 120,000-150,000 yuan, reducing the overall cost by 30%. If a leasing model is adopted, the annual rent can be as low as 5,000 yuan per room, demonstrating significant economic benefits.
3. Green and Environmentally Friendly: Factory production achieves a 95% recycling rate for off-cuts, with no dust or sewage emissions on-site, and construction waste is only 10% of that of traditional construction. Environmentally friendly concrete and water-based paints are used, with formaldehyde emissions ≤0.05mg/m³, well below the national standard (0.1mg/m³), enabling 'immediate occupancy'.
4. Flexible Layout: The standard module size is 6m×3m×3m, allowing for free combination of layouts through horizontal splicing or vertical stacking (up to 3 floors), meeting diverse needs such as rural self-built houses, employee dormitories, restrooms, and office areas.

Application Example
In Sichuan, prefabricated concrete houses with a full reinforced concrete structure have a construction cost of only 110,000 yuan for a 200㎡ main structure. The houses, weighing up to 100 tons, are structurally stable and can be passed down through generations, further validating their economic efficiency and durability.