Polyurethane concrete raising is a method of raising and supporting concrete slabs that have settled down or otherwise become unstable. The process involves injecting a polyurethane foam underneath the slab through small holes drilled into the concrete itself. A reaction causes the foam to expand and lift the concrete slab to where it needs to be. It is a much smaller and less invasive procedure than other concrete raising methods that require larger holes to be drilled.
What Causes Concrete to Settle?
Concrete can settle and sink down for a number of reasons. One of the biggest culprits is poor, clay-rich soil. This kind of soil is elastic and expands and contracts as it takes on moisture. If it expands too much, the clay will lose its strength and cause the concrete slab to sink. You might see this happen after a heavy rain or if a leaky pipe drains into the soil.
In many cases, concrete slabs are placed on backfilled soils that haven’t been compacted correctly. If the soil becomes unevenly compacted by the concrete slab, the slab will start to settle into a position that is just as uneven.
Tree roots can also cause soil to erode and concrete to settle. This can happen with older homes that have large trees nearby that may have been planted after the concrete was placed.
Why You Should Have Your Concrete Raised
Polyurethane concrete raising can restore the appearance and function of sidewalks, driveways, patios, and other concrete surfaces that have settled and become uneven. It can provide you with a safer home for your family and guests, and it can help improve the value of your home should you ever decide to sell.
If you notice that you have concrete slabs on your property that have settled and are uneven, don’t hesitate to have them repaired. There are plenty of companies near you that specialize in concrete raising, so Google “polyurethane concrete raising Illinois” to find a service that will work best for you.