Video on the Use of Prefabricated Panels for Houses

Regarding videos on the use of prefabricated panels for houses, here are some recommended contents and their key points:

1. "Installation of Prefabricated Wall Panels for Prefabricated Buildings"

This video focuses on the installation process of prefabricated wall panels in prefabricated buildings, covering the entire process from component transportation, on-site positioning to precise hoisting. Key points include:

• Component transportation and inspection: Prefabricated wall panels need to be fixed with special transportation racks to avoid damage during transportation; upon arrival, their dimensions, positions of embedded parts, and concrete strength should be inspected to ensure compliance with design requirements.
• Positioning and support: Use laser levels or total stations to determine the installation axis of the wall panels, and temporarily fix them with adjustable diagonal supports to ensure a verticality error of ≤3mm.
• Node connection: Adopt sleeve grouting connection or grout-anchored lap splicing techniques to ensure effective anchoring of the reinforcement between upper and lower wall panels; the grouting material should be prepared in proportion, and grouting should be carried out under pressure after sealing the grouting ports to eliminate air bubbles.
• Sealing treatment: Use high-elastic waterproof sealant to caulk the joints between wall panels, and apply weather-resistant tape externally to prevent rainwater leakage.

2. "Construction Process of Standard Floors in Ordinary Residential Buildings (Including Prefabricated Composite Slabs)"

This video demonstrates the application of prefabricated composite slabs in the standard floors of residential buildings, involving the hoisting of composite slabs, reinforcement binding, and concrete pouring. Key steps are as follows:

• Composite slab hoisting: Use special lifting devices to evenly distribute the force and avoid cracking of the slab surface; before hoisting, snap control lines on the formwork to ensure that the installation position deviation of the composite slabs is ≤5mm.
• Reinforcement binding: The truss reinforcement of the composite slabs and the reinforcement of the cast-in-place layer should be firmly bound at the intersections; reserve holes for the passage of water and electricity pipelines through the reinforcement to avoid damaging the structure by chiseling later.
• Concrete pouring: Use fine aggregate concrete and vibrate it densely; perform secondary troweling on the surface and cover it with plastic film for curing to prevent shrinkage cracks; the bonding surface between the composite slabs and the cast-in-place layer should be roughened to enhance the bonding strength.

3. "Innovative Wall-Building Method Using Prefabricated Panels"

This video introduces a panel assembly technique that replaces traditional building blocks, suitable for the construction of non-load-bearing partition walls. Technical advantages and operating points:

• Modular design: Prefabricated panels are produced in standard sizes and can be directly assembled on site, reducing wet operations and improving construction efficiency by more than 50%.
• Lightweight and high-strength: Using foamed concrete or fiber-reinforced materials, the self-weight is reduced by 30% compared to traditional building blocks, while meeting fire resistance and sound insulation requirements.
• Assembly process: The panels are connected by tongues and grooves or connectors, and the gaps are filled with special adhesives; a gap of 10-15mm should be reserved between the top of the wall and the structural beam, and filled with elastic materials to accommodate structural deformation.