Concrete slabs sink for several reasons, including washouts and erosion. In this case, the sidewalk was undermined by flooding. It not only looks bad, but it's also unsafe for pedestrians and bicyclists.
Foundation Systems of Michigan specializes in raising all types of slabs, including sidewalks, basements, patios, driveways, and pool decks.
Broken and/or misaligned concrete (sidewalks, patios, driveways, etc.) poses a safety hazard, while also detracting from appearance and real estate value.
What Caused It:
The soils underneath the concrete were either washed away or unable to support the weight of the masonry.
How to Fix It:
We fix smaller concrete slabs that have settled using a technique called polymer injection, an improvement upon conventional mudjacking and slab jacking methods. Polymer injection, or PolyLevel®, can actually consolidate weak underlying soils and raise concrete slabs because the polyurethane formulation expands before it cures. The hardened mass is much lighter than the concrete slurry used for mudjacking, making further settlement unlikely.
If your foundation is beginning to sink or settle, contact us today. We provide a thorough inspection of your property and the best possible solution to repair it. All of our work is fully-warrantied!
Concrete is heavy! When the soils underneath a concrete slab are unable to support its weight, the slab will sink. If part of the concrete slab is supported by soils and other sections are not, the unsupported pieces may crack away from the other section.
The soils underneath an outdoor concrete slab can fail to support the weight of the slab for these two primary reasons:
Different types of soil have different load-bearing capacities. When a soil's load-bearing capacity is exceeded, the soil will compact and settle.
It's also possible for the soil beneath a slab to settle and compact of its own accord. Soil that contains large amounts of clay and/or silt will shrink substantially when it gets dry.
As the soil compacts underneath a concrete slab, the unsupported slab will sink as well, usually cracking in one or more spots.
The soil that is underneath your driveway, patio, or concrete steps may not necessarily remain there to provide adequate support for the concrete element.
As water moves underneath your concrete slabs, it can wash away the soil that's supporting the weight of the concrete. As this happens, it creates a void, or empty space, underneath. Over time, with nothing to support it, your concrete slab can begin to sink or cave in.
Water has washed away the soils underneath a section of this concrete sidewalk.
As it did, a void, or hollow area, was created underneath the concrete. With nothing to support it, the concrete eventually collapsed.
PolyLevel® concrete repairs do more than simply stabilize the sinking concrete. With the new Polymer Injection product, PolyLevel® (produced by Foundation Supportworks, Inc.) we can strengthen the soil's load-bearing qualities and lift and realign the shifted concrete.
More about concrete lifting and leveling.
Our in-house contractors at Foundation Systems of Michigan specialize in structural stabilization for foundation problems of all kinds -- including sinking, settling outdoor concrete slabs like the ones found in sidewalks, patios, steps, walkways, driveways, and many similar surfaces.
We offer free settling outdoor concrete quotes throughout our Michigan service area.To schedule your appointment, contact us by phone or e-mail today! We proudly serve Ann Arbor, Warren, Canton and areas nearby.
We have 2 locations to better serve Michigan: Livonia & Traverse City