How to Adhere Concrete to Concrete

Adhering concrete to existing concrete can be done using various techniques. Here are some steps you can follow to adhere concrete to concrete:

1. Clean the surface: The first step is to ensure that the surface of the existing concrete is clean and free of debris, dirt, or any loose material. Use a pressure washer or a wire brush to clean the surface thoroughly.

2. Apply a bonding agent: Once the surface is clean, apply a bonding agent to the surface. The bonding agent acts as a bridge between the existing and new concrete and helps the new concrete adhere to the existing surface.

3. Mix the concrete: Mix the new concrete according to the manufacturer's instructions. You can add a concrete adhesive to the mix to improve the bond between the new and existing concrete.

4. Apply the concrete: Apply the new concrete to the surface using a trowel or a float. Ensure that the new concrete is applied evenly and smoothly to the surface. Use a screed to level the surface if necessary.

5. Finish the surface: After applying the new concrete, finish the surface using a float or a trowel. Smooth the surface to achieve the desired finish.

6. Cure the concrete: Once the concrete is applied and finished, allow it to cure. Curing time may vary depending on the type of concrete mix and the weather conditions. Keep the surface moist during the curing process to prevent cracking.

In summary, to adhere concrete to concrete, you need to clean the surface, apply a bonding agent, mix and apply the new concrete, finish the surface, and allow the concrete to cure. By following these steps, you can ensure a strong and long-lasting bond between the new and existing concrete surfaces.