How To Stop Erosion Under Concrete Slab

Cement or concrete slabs for instance do not drain while a patio made of pavers may.

How to stop erosion under concrete slab.

There are no structural issues cracks etc above this area. In some cases it is more economical to underpin the foundation with mechanical supports such as helical piers or driven steel pins. Note the erosion underneath. And even though your.

Voids can lead to a weakness in the slab causing dips in the surface tilting or cracks and breaks. Concrete slabs can develop voids from a variety of reasons ranging from sliding soil beneath the slab displaced because of a lack of proper compression to water erosion slowly washing away the soil over time. Without the right support concrete will crack sink and cease to be the sturdy solid surface you can count on. Beyond that there s good solid compacted dirt supporting the slab.

Soil erosion around a house foundation is just as much a problem for homes on flat land as it is for homes on slopes. The erosion only extends about 6 14 inches from left to right underneath the slab. Depending on its construction a patio is either of limited porosity or not porous at all. 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.

It s imperative to fix erosion under concrete as soon as possible but first you need to know what to look for. 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. Properly installed gutters and downspouts will effectively channel rainwater away from building foundations thereby minimizing erosion under concrete slab foundations. This process is called mud jacking and it s a job best left to pros with the equipment to do it because the material has to be injected under pressure to do the job.

A wet concrete slurry is pumped under the slap to raise and support it. Installation of downspouts and gutters. The least expensive way to raise a sunken slab is to inject a combination of dirt aggregate and portland cement through holes in the surface. For areas of the slab that have settled significantly a process known as slabjacking might be useful.

This pic is of our driveway.