How to install precast concrete panel?

Precase Concrete Slab Installation Guide

Precase concrete slabs are widely used for both interior and exterior wall decoration due to their durability and aesthetic appeal. The installation methods vary depending on the environment. Below is a detailed guide on the installation steps and precautions for both indoor and outdoor settings.

Indoor Installation Steps

1. Preparation

   • Wall Inspection: Ensure the wall is vertical, smooth, and free of excessive dust.
   • Base Layer Treatment: The base layer must be waterproofed to prevent cracking.

2. Applying Structural Adhesive

   • Evenly apply structural adhesive to the back of the prefabricated concrete slab.
   • The method is similar to installing ceramic tiles, ensuring the adhesive covers the entire surface.

3. Installing the Concrete Slab

   • Press the adhesive-coated concrete slab onto the wall.
   • Use a leveler to adjust the gaps between the slabs, ensuring uniform and aesthetic seams. Maintain at least a 3mm gap between each slab to prevent expansion and cracking due to thermal expansion and contraction.

4. Side Support

   • After installation, use side supports to reduce the impact of gravity on the slabs.
   • Ensure the slabs remain undisturbed for 24 hours to achieve a strong bond.

5. Cleaning and Inspection

   • After installation, clean off any excess adhesive from the surface and gaps.
   • Check that each slab is securely installed and that the seams are uniform.

Outdoor Installation Steps

For outdoor installation, there are multiple methods. Choose the most suitable one based on the site conditions:

1. Groove Mounting Method

   • Cutting Grooves: Cut a groove on the side of the prefabricated concrete slab.
   • Fixing Metal Fittings: Install metal fittings on the wall.
   • Hanging Concrete Slabs: Hang the prefabricated concrete slabs onto the metal fittings.

2. Drilled Expansion Bolt Method

   • Drilling: Drill holes in the back of the prefabricated concrete slab.
   • Installing Expansion Bolts: Use expansion bolts to fix the slabs to the wall, attaching the other end to metal hangers on the wall.
   • Reference Marble Installation Method: This method is similar to marble installation, ensuring strong attachment.

3. Embedded Nut Dry Hanging Method

   • Embedding Nuts: Embed nuts in the back of the prefabricated concrete slab.
   • Dry Hanging Metal Fittings: Use dry hanging metal fittings to attach the slab with screws, securing the other end to the wall.
   • Securing Installation: Ensure all screws and metal fittings are firmly installed to increase overall stability.

Precautions

• Vertical Check: Always check the wall's verticality before installation to ensure it is smooth.
• Waterproof Treatment: For indoor installation, the base layer must be waterproofed to prevent cracking.
• Even Adhesive Application: Ensure the structural adhesive is evenly applied for a secure bond.
• Using a Leveler: A leveler can effectively ensure uniform gaps between slabs, enhancing the overall aesthetic.
• Gap Spacing: Maintain at least a 3mm gap between each slab to prevent expansion and cracking.
• Support and Curing: Use side supports to reduce gravity impact and avoid disturbance for 24 hours to ensure quality installation.

Contact Us

If you have any questions during the installation process or need further advice, feel free to contact us. We can provide professional recommendations based on your site images and offer detailed quotes. This ensures you choose the most suitable installation method and achieve the best results.

Following these steps will help you successfully install prefabricated concrete slabs, enhancing the beauty and durability of your walls. If there are any other installation methods or precautions, please feel free to add them.