How To Fix Erosion Under Concrete Driveway

By all means increase the size of the stones.

How to fix erosion under concrete driveway.

There are several conventional and alternative void filling materials which can be employed to achieve a similar effect. There is 2 ways to fix it. For one thing the gravel must be the correct shape. 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.

Without the right support concrete will crack sink and cease to be the sturdy solid surface you can count on. This is a means of filling voids underneath concrete slabs by injecting pumping filler materials into the defective areas. To repair you ll need a form. Your contractor installed the wrong sized gravel along the edge of your driveway.

How to fill voids under a concrete slab. 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. 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.

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. 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. Shrub and tree roots excel in preventing erosion way better than grass roots. Use a drill equipped with a masonry bit to bore.

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. 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. It s just where it always has been.