If you’re a home or building owner, you might have experienced issues with sunken or uneven slabs in your home or office. That said, you already have a handful of options in order to address the issue. However, for those who never had concrete repair issues before, it can be confusing or overwhelming, to say the least, to find ways on how to do about concrete crack repair and related issues.
A few options are available. Three of which we’ll discuss here and take a closer look for you to determine which one suit you best. Each of these options has their pros and cons and certain circumstances will necessitate one over the other. In that light, it’s best to get the services or advice from professionals who can check the problematic area and suggest the best approach to address the problem.
Option 1: Replacing
If the cracks in your concrete are beyond repair, it only makes sense to have it replaced than repaired. Deciding this takes expert advice and guidance so getting professional services would only be prudent. However, a new slab has its appeal but pouring new concrete to damaged ones will not match its color. Aesthetically, this is not pleasing. Additionally, replacing cracked or uneven concrete doesn’t really address the problem. In time, the issue will surface again and you’ll be left with more costly repairs than anticipated. Moreso, replacing an entire area of sunken concrete is more costly.
Option 2: The Mudjacking Process
Mudjacking has been in existence since the 1990’s. It has evolved over the years but the general process still remained the same. In the mudjacking process, small holes are drilled (1-2 inches in diameter or almost the same size of a golf ball) to certain areas of the concrete that needs repair. A special type of mixture or slurry is then pumped into these holes in order to fill gaps and voids under the dropped concrete. Once these voids are filled, pressure allows the concrete to lift and brings it back to its original position.
All drilled holes will be filled with the special mixture to ensure that no gaps and voids were missed. That said, the hole placement and knowledge of where to put them are critical to ensure proper filling of the void. Once all holes have been filled, it is patched and the whole area is cleaned.
Option 3: The Foam Jacking Process
In foam jacking, spray foam is applied to the drilled holes instead of the special mix utilized in mudjacking. This material has been used for over a decade now but has become the known and desired choice for many within the last 10 years.
The foam jacking process also starts with holes strategically drilled to specific areas of the concrete. These holes are smaller as compared to mudjacking holes as they are only about the size of a penny. The polyurethane material consists of two parts that mix together and with proper heat mix and application, the material fills voids by expanding. Once the voids are filled, more material is added to lift the concrete to the desired elevation. This can be done in very small increments to match tight tolerances if necessary. The area is cleaned up and patched back using a quick patch concrete in the same manner as mudjacking.