Fixing Erosion Under Concrete Slab

Turn off the pump and remove the hose once the fill material has reached the level of the concrete slab.

Fixing erosion under concrete slab.

Slabjacking is used to prevent everything from porch floors to patios and basement floors from shifting. Beyond that there s good solid compacted dirt supporting the slab. To keep it from eroding further and give some support to this area of the driveway. With slabjacking a stable grout mixture is injected beneath the surface filling the voids and reestablishing the strength your slab needs to last for ages.

But even more importantly if weak soil caused the slab to sink the soil may compress again under the weight of the new slab. Can anybody recommend the best way to fill this with rocks gravel concrete etc. The erosion only extends about 6 14 inches from left to right underneath the slab. You can affordably repair erosion under concrete once and for all.

1 855 752 2522 uses an expanding polymer foam injected under the concrete that fills voids and if necessary raises you re settled concrete back to the proper grade. Patios don t tend to drain well instead producing runoff and therefore sometimes posing a significant soil erosion problem in home landscapes. Concrete is a very heavy material in addition to being unable to generate any upward pressure on the slab the added burden on the soil often speeds settling. Filling hollows under a concrete floor is done through a process called slabjacking.

For areas of the slab that have settled significantly a process known as slabjacking might be useful. A shortcut repair adding more concrete to level or even out the slab imposes even more weight on the soil increasing the risk of sinking in the future. There are no structural issues cracks etc above this area. If your patio causes erosion then taking several.

In some cases it is more economical to underpin the foundation with mechanical supports such as helical piers or driven steel pins. Contact lift up concrete for a free quote. The void is completely filled in at this point. The foam is a two part product and when you combine the parts it quickly expands and solidifies creating enough upward pressure in the process to level the slab.