Jize Cement Prefabricated House Installation

The installation of cement prefabricated houses typically involves key steps such as preparation, foundation treatment, and component lifting and connection. The specific process is as follows:

1. Preparation Stage

Before installation, all prefabricated components must be thoroughly inspected to ensure their dimensions, specifications, and strength meet design requirements. It is crucial to verify that the positions and quantities of reserved sleeves and reinforcing bars align with the design drawings to prevent connection issues caused by component errors. Additionally, materials and tools required for installation, such as cement mortar, sealant, bolts, sleeve grouting materials, lifting equipment (e.g., cranes, forklifts), measuring instruments (e.g., level gauges, total stations), and safety gear (e.g., safety harnesses, helmets), must be prepared. The installation site should also be cleared to ensure a flat and obstacle-free surface, and the stacking area and transportation path for components should be planned to enhance installation efficiency.

2. Foundation Treatment

Based on geological conditions and design requirements, an appropriate foundation type (e.g., concrete base, strip foundation, or isolated foundation) should be selected. Foundation construction must strictly adhere to the dimensions and elevation requirements specified in the design drawings, with precise positioning and leveling performed using measuring instruments to ensure that foundation flatness errors are within allowable limits. After foundation pouring, curing (usually for no less than 7 days) is necessary until the concrete strength reaches the design standard before proceeding with subsequent installation. If the foundation is on weak soil, ground reinforcement treatment (e.g., replacement or piling) should be carried out in advance to enhance the stability of the house.

3. Component Lifting and Connection

Prefabricated components should be lifted in a sequential manner, typically starting with major structures such as columns, beams, and slabs, and gradually assembling to secondary components like walls and stairs. During lifting, professional clamps or slings should be used to prevent component damage, and tools such as level gauges and plumb lines should be employed to continuously correct the verticality and levelness of components. The connection method for components should be selected according to design requirements:

• Bolt Connection: Suitable for connecting key nodes such as columns to foundations and beams to columns, ensuring that bolt pre-tension meets specifications to prevent loosening;
• Sleeve Grouting Connection: Used for reinforcing bar splicing, where high-strength grouting material is injected into the sleeve to ensure no gaps between the reinforcing bars and the sleeve, enhancing structural integrity;
• Welding Connection: Only used when specifically allowed by design, with welding quality controlled to prevent embrittlement in the heat-affected zone.

During wall installation, gaps should be filled with sealing materials (e.g., polyurethane foam, silicone sealant) to prevent rainwater leakage. After installation, excess material on the component surfaces should be cleaned, and the flatness and structural stability of the house's appearance should be inspected to ensure compliance with acceptance standards before putting it into use.