Hollowing of concrete floors is a common problem that often affects the quality and durability of the floor. In order to deal with this problem effectively, the method of perforation and grouting can be employed.
Perforated grouting is a simple and effective technique that can effectively repair the hollow drum by punching holes in the hollow drum and then injecting hollow drum grouting resin glue. This resin adhesive has strong adhesion and permeability, and is able to bond tightly with the concrete surface to form a complete floor surface.
In the process of perforation grouting, professional perforating tools and grouting equipment need to be used. First, the hollow drum needs to be located and marked, and then a drill or percussion drill is used to punch holes in the concrete floor. The depth and size of the hole should be determined according to the size and depth of the hollow drum.
Once the hole is ready, the hollow drum grout resin glue can be injected into the hole using a grouting pump or a manual syringe. The resin glue will penetrate into the hollow drum and bond tightly to the concrete surface. This process takes time and pressure to ensure that the resin glue can adequately fill the hollow drum.
After the grouting is completed, it is necessary to wait for the resin glue to dry and cure. Generally, this process takes more than 24 hours. After the resin glue has dried and cured, the surface can be smoothed with a professional sander and then coated with a protective layer such as concrete floor sealant or floor wax to protect the ground and improve its aesthetics.
In conclusion, perforated grouting is a very effective way to deal with concrete floor hollowing. It solves hollowing problems quickly and effectively, and improves the quality and durability of concrete floors.