Prefabricated Wall Integration for Housing

Prefabricated wall integration for housing is a technical system in prefabricated construction that uses factory-prefabricated components to form building walls through on-site assembly and installation, offering advantages such as efficiency, energy conservation, and cost-effectiveness. Its core lies in transferring the traditional on-site wall construction process to the factory, enabling rapid wall construction through standardized design, industrialized production, and modular construction. The following provides an explanation from three aspects: definition and characteristics, product types, and application advantages:

Definition and Characteristics

Prefabricated wall integration falls within the scope of prefabricated construction technology, with its core logic being "factory production + on-site assembly". Traditional building walls require layer-by-layer construction on-site through methods such as masonry and pouring, whereas prefabricated walls complete processes such as steel bar binding, concrete pouring, and insulation layer installation in the factory. These standardized components are then transported to the site for rapid assembly using methods such as bolt connections, welding, or sleeve grouting. This process incorporates modern industrial features such as standardized design (modular component dimensions), factory production (strong quality control), modular construction (construction period reduced by over 50%), and information management (BIM technology optimizing component production and installation), making it a key technology for the construction industry's transition to green and low-carbon practices.

Product Types

Currently, mainstream prefabricated wall products include two categories:

1. PFC Lightweight Concrete Integrated Wall: Characterized by lightweight and high strength, it uses foamed concrete or fiber-reinforced concrete materials, with a density only 1/3 to 1/2 of traditional concrete but an compressive strength of up to 15-30 MPa. Its advantages include multi-functional integration—pre-embedded water and electricity pipelines, insulation layers, and decorative finishes within the wall, achieving "structural-insulation-decorative" integration; excellent physical properties—weather resistance of over 50 years, no damage after 300 freeze-thaw cycles, suitable for cold regions; convenient construction—lightweight individual wall panels, high lifting efficiency, reducing on-site wet work by over 80%.
2. Prefabricated Cement Integrated House Wall Panels: With a reinforced concrete frame as the core, they use C30-C35 high-strength concrete and are internally configured with double-layer bidirectional steel bar meshes, with an actual measured wind resistance rating of Level 12. Their typical applications include rapid construction—a 200㎡ villa's main structure can be lifted and assembled in 4 hours, saving 90% of the construction period compared to traditional brick-concrete structures; cost advantages—the main structure of a 100㎡ house costs 100,000-120,000 yuan, 30% lower than brick-concrete structures, with labor costs reduced by 60%; safety performance—verified through seismic tests to meet seismic fortification requirements of Level 8.

Application Advantages

The promotion of prefabricated wall technology has significantly enhanced the level of construction industrialization. Taking the application of Jinxi New Materials' PFC wall panels in a China Overseas Property project as an example, their construction efficiency is three times higher than traditional walls, material waste is reduced by 15%, and carbon emissions are lowered by 20%; the popularization of prefabricated cement wall panels in rural self-built housing has addressed the pain points of long construction periods and inconsistent quality in traditional brick-concrete structures. With the advancement of the "dual carbon" goals, prefabricated wall technology will become an important support for the green transformation of the construction industry.