Prefabricated Housing Concrete

The concrete in prefabricated housing mainly involves prefabricated concrete components, which are pre-formed in factories or on construction sites and feature fast construction speeds and wide applications.

Production and Connection of Prefabricated Concrete Components

The main body of a prefabricated concrete house is composed of various concrete components pre-cast in factories. During house construction, these components are simply connected together like building blocks to obtain a raw house. This construction method reduces a significant amount of on-site wet work and enables rapid construction. For example, a two-story reinforced concrete raw house can be completed in approximately two weeks. In factories, workers use bolt connectors to assemble metal steel plates into molds required for casting prefabricated concrete components. After spraying mold release agents on the mold surfaces, steel bars are placed crosswise in the molds and tied into a mesh framework with steel wires to enhance the tensile strength of the concrete. At the same time, connectors are placed inside the steel bar mesh as connection points between the concrete components and cranes. Subsequently, concrete is filled into the molds, and vibrators are used to remove air bubbles. After casting, the surfaces are smoothed, covered with plastic sheds, and heating devices are installed to ensure and promote the hydration reaction of the cement, thereby improving the quality of the concrete components.

Production Processes and Performance Enhancement

The production processes for prefabricated concrete components include the bench method, assembly line method, and conveyor line method. The products often employ fiber reinforcement technology to enhance performance and can be customized in size through vertical or horizontal mold processes to meet the needs of different buildings.

Application Areas and Market Size

Prefabricated concrete components are widely used in areas such as building exteriors, municipal road and bridge construction, and prefabricated housing. With continuous technological advancements and market expansion, the market size for prefabricated concrete structures continues to grow. It is predicted that by 2025, the market size for prefabricated concrete structures will reach 1.1 trillion yuan, accounting for 65% of the prefabricated building market. The application of high-performance concrete and fiber-reinforced composite materials enhances component performance, while intelligent equipment and digital technologies drive the industry towards intensive development.