How to Lay Prefabricated Slabs in House Construction

The method of laying prefabricated slabs in house construction should be selected based on specific uses and structural requirements. Common scenarios include using them as floor slabs, thermal insulation layers, or special structures (such as wood-fired stoves). Safety regulations must be strictly followed during construction.

I. Installation as Floor Slabs or Thermal Insulation Layers

Prefabricated slabs are typically manufactured in factories and then transported directly to the construction site for installation, suitable for structures like floor slabs or thermal insulation layers.

1. Positioning and Support: Positioning and marking should be carried out according to construction drawings to clarify the installation location. After hoisting exterior wall slabs, fixed supports should be installed to ensure stability. After installing interior wall slabs, wall sealing and grouting should be performed to prevent water leakage through gaps.
2. Slab Connection: Gaps may exist between prefabricated slabs and should be treated with grouting or filled with sealing materials to prevent floor slab cracking or water leakage due to improper construction.
3. Structural Safety: If prefabricated slabs are used for secondary load-bearing structures (such as load-bearing walls), the maximum height of the wall should be controlled at around 2.4 meters, and the newly constructed wall should be tightly connected to the upper structure to prevent deformation caused by uneven loads.

II. Construction of Special Structures like Wood-Fired Stoves

If prefabricated slabs are used for special scenarios like rural wood-fired stoves, they should be combined with bricks and steel bars to enhance structural stability.

1. Foundation Reinforcement: Use bricks to build a围挡 (enclosure) and fill it with cement mortar, embedding steel bars to form a framework and improve overall load-bearing capacity.
2. Level Adjustment: Use a cement model as a reference to replicate a circular structure, place red bricks as load-bearing pillars, then place the prefabricated slab and adjust its levelness to ensure a flat stove surface.
3. Detail Handling: Stack bricks along the inner edge of the prefabricated slab to form a circle, leaving a gap for installing an arc-shaped frame to facilitate subsequent use or maintenance.

III. Precautions for Wall Construction

1. Material Selection: Choose hollow or solid prefabricated slabs according to needs. Hollow slabs are lightweight and have good thermal insulation properties, suitable for non-load-bearing structures; solid slabs have high strength and can be used for load-bearing or special scenarios.
2. Construction Regulations: Residents should not arbitrarily build walls on prefabricated slab floors. Professional personnel should evaluate structural safety to prevent floor slab cracking or collapse caused by increased loads.
3. Gap Treatment: Gaps between prefabricated slabs should be filled with grouting or sealing materials to prevent rainwater leakage or insect infestation.

Summary: The laying of prefabricated slabs should be combined with specific uses to select construction methods, strictly following positioning, support, connection, and safety regulations to ensure structural stability and use safety.