Can you add wire mesh to concrete after pouring?

While adding wire mesh to freshly poured concrete is the recommended approach, it is still possible to incorporate wire mesh after the concrete has been poured. However, this method is generally not as effective as the traditional approach and may not provide the same level of reinforcement. It is important to note that adding wire mesh after pouring is more appropriate for smaller projects or areas that require minimal reinforcement.

Steps to Add Wire Mesh After Pouring

If you have already poured the concrete and decide to add wire mesh later, here are the general steps to follow:

1. Clean the Surface: Before adding wire mesh, make sure the concrete surface is clean and free from any debris or loose particles. You can use a broom or pressure washer to thoroughly clean the area.
2. Prepare the Mesh: Cut the wire mesh sheets into the required size to fit the desired area. It is essential to utilize mesh sheets with the appropriate opening size and wire gauge for optimal reinforcement.
3. Secure the Mesh: Lay the prepared wire mesh on top of the concrete surface, ensuring it is properly aligned and covers the desired area. Consider using tie wire or concrete fasteners to secure the mesh to the existing concrete. It is crucial to ensure the wire mesh is flat and well-positioned to prevent unevenness or tripping hazards.
4. Embed the Mesh: Once the wire mesh is securely in place, use a broom or trowel to gently push the mesh into the concrete surface. This process helps embed the mesh and ensures it is adequately surrounded by concrete.
5. Repair the Surface: After embedding the wire mesh, inspect the concrete surface for any disruptions or unevenness caused during the process. Use a trowel or float to smooth out the surface, blending the newly added wire mesh with the existing concrete.

Benefits and Limitations

While adding wire mesh to concrete after pouring does provide some reinforcement, it is important to be aware of the limitations of this method. The primary benefit is that it can still offer increased strength and help minimize cracking to some extent. However, the effectiveness of the reinforcement may be compromised compared to when wire mesh is added before pouring. Additionally, this method can be more time-consuming, requiring additional effort to secure the mesh and ensure proper integration.

In summary, while wire mesh is ideally added to concrete before pouring, it is still possible to incorporate it after the concrete has been poured. However, this method should be used cautiously and is more suitable for smaller projects or areas requiring minimal reinforcement. For optimal results and maximum reinforcement, it is always recommended to include wire mesh during the initial construction phase. Proper planning and execution can help avoid the need for adding wire mesh after pouring and ensure the long-term durability of your concrete structures.