Prefabricated Reinforced Concrete Modular Housing

Prefabricated reinforced concrete modular housing is an assembled building constructed using prefabricated reinforced concrete modules as its core, through factory prefabrication and on-site assembly methods. Its characteristics and advantages are as follows:

1. Structural and Process Characteristics
Core components (walls, floors, beams, and columns) are cast in one piece in the factory using high-precision molds, integrating steel reinforcement skeletons, insulation layers, waterproof layers, and pre-embedded pipelines to form standardized 'building blocks'. Modules are connected using pre-stressed bolts and welded steel plates, with sleeve grouting technology applied at joints to ensure overall structural stability.

2. Performance Advantages

• Reliable Quality: Utilizing C30-C40 grade concrete with built-in φ8-φ12 steel reinforcement mesh, the compressive strength reaches 25-30MPa, 1.5 times that of traditional brick-and-mortar structures; withstands wind loads up to grade 10 and seismic fortification intensity of 7 degrees (capable of withstanding damage equivalent to the Wenchuan earthquake), with superior joint crack resistance compared to traditional casting.
• High Construction Efficiency: A single 30㎡ module takes only 7 days for factory prefabrication. During on-site installation, three workers with a crane can complete the assembly of a single module in 4 hours, and the entire construction of a 100㎡ house takes only 2 days, reducing the construction period by more than 50% compared to traditional methods.
• Outstanding Environmental Protection: Factory production achieves a 95% recovery rate of off-cuts, with no dust or sewage emissions on-site, and construction waste accounting for only 10% of traditional methods; environmentally friendly concrete and water-based paints are used, with formaldehyde emissions ≤0.05mg/m³ (national standard is 0.1mg/m³), enabling 'move-in ready' occupancy.
• Controllable Costs: For a 120㎡ self-built rural house, the cost of traditional brick-and-mortar construction 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 overall costs by 30%; the leasing model offers annual rents as low as 5,000 yuan per room, further lowering the barrier to entry.

3. Market and Policy Support
Prices vary significantly depending on brand, material, and region, such as 1,100 yuan per square meter in Baoshan, Yunnan, and 300 yuan per square meter in Liaoyuan, Jilin. National policies promote the development of assembled buildings, for example, Guangzhou requires that by 2026, 100% of residential land sold in the city will implement assembled buildings, with 'as much application as possible' for commercial and industrial land.