How To Fix Erosion Under Concrete Driveway

Once you decide to start your driveway erosion repair focus on both the size and shape of the stones you ll use along the edge of your drive.

How to fix erosion under concrete driveway.

Bury an aluminum flashing or redwood or other suitable material a couple of inches deep and about an inch from the concrete edge allowing it to extend above the bottom edge of the concrete approximately an inch. It s imperative to fix erosion under concrete as soon as possible but first you need to know what to look for. For one thing the gravel must be the correct shape. Your contractor installed the wrong sized gravel along the edge of your driveway.

It s just where it always has been. 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. Shrub and tree roots excel in preventing erosion way better than grass roots. But if you ve got an area that s sunken in where the driveway is what you are going to have to do is cut that driveway out fill that area in tamp it down pack it properly and have the driveway restored in that particular area.

Use a drill equipped with a masonry bit to bore. There are several conventional and alternative void filling materials which can be employed to achieve a similar effect. How to fill voids under a concrete slab. Drill at least four holes through the slab at a point that s centered on the void beneath.

Connect a hose to a slabjacking pump then run the hose to the holes leading to the void. To repair you ll need a form. This is a means of filling voids underneath concrete slabs by injecting pumping filler materials into the defective areas. Erosion under concrete is serious whether it s your foundation driveway patio or sidewalk that s affected.

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. The driveway hasn t sunk yet. 1 by professionals slab jacking by lifting the concrete that is below the concrete surface and tightly filling the gap. 2 by your self with a hammer drill hammer drill bit drop in anchors threaded rod cut to length nuts fender.