How to Make Prefabricated House Partitions
The production and installation of prefabricated house partitions should follow standardized procedures, with core steps including preliminary preparation, base treatment, line setting and positioning, panel installation, gap treatment, special connection treatment, surface treatment, and acceptance and maintenance.
Preliminary Preparation
Material selection should be based on project requirements, including types such as lightweight panels (ceramsite concrete, autoclaved aerated concrete), composite sandwich panels (gypsum board with rock wool), or modular integrated panels. Upon arrival, check the certificates of conformity and test reports, and inspect the appearance quality. Tools required include ink fountains, steel tapes, guiding rulers, electric drills, etc. Additionally, a stable temporary operating scaffold should be erected.
Base Treatment
Clean the floating dust, oil stains, and debris from the floor, ceiling, and walls. For areas where the base flatness deviation exceeds 5mm, level with cement mortar and moisten with water to ensure adhesion. Base treatment is fundamental to ensuring the stability of the partition wall; failure to do so may result in subsequent installation deviations or hollowing.
Line Setting and Positioning
Use an ink fountain to snap the edge and center lines of the partition wall, and mark the installation positions and numbers according to the specifications of the prefabricated panels to ensure even distribution. Reserve space for door and window openings and mark the positions of reinforcing bars to avoid structural damage from later punching. The accuracy of line setting directly affects the perpendicularity and flatness of the partition wall.
Panel Installation
- Applying Adhesive Mortar: Apply a uniform layer of special adhesive mortar on the top and side surfaces of the prefabricated panels, ensuring no omission at the edges, which could lead to poor splicing.
- Hoisting and Adjustment: Use an electric hoist in conjunction with manual labor to move the panels to the installation position. Adjust the perpendicularity and levelness with a crowbar, keeping deviations within specified limits (e.g., perpendicularity ≤ 3mm/m, levelness ≤ 2mm/m).
- Fixing and Splicing: Insert wooden wedges at the bottom of the panels for fixation. Control the gap between adjacent panels at 5-8mm, apply adhesive mortar, align and splice them, and secure with special clamps for 24 hours to ensure full curing of the mortar.
Gap Treatment
After cleaning debris from the panel gaps, adhere alkali-resistant fiberglass mesh, extending the mesh about 100mm beyond both sides of the gap to enhance crack resistance. Gap treatment is a critical step in preventing partition wall cracking and should be carried out strictly according to specifications.
Special Connection Treatment (if required)
For prefabricated assembled partition panels, rigid connections can be made using steel connection boxes, with pre-stressed anchor bolts to resist shrinkage deformation and reduce cracking risk. This step is suitable for scenarios with high structural stability requirements.
Surface Treatment
Perform operations such as mesh hanging, white cement application, and kraft paper pasting according to design requirements, and finally apply putty powder to complete the surface treatment. Surface treatment should ensure flatness and smoothness, providing a good foundation for subsequent decoration.
Acceptance and Maintenance
Inspect the perpendicularity, flatness, and gap treatment quality of the partition wall to ensure compliance with specifications. Avoid external impacts during daily use, regularly check for loose connections, and promptly repair damaged parts to extend service life.
