There are several ways to fill material under a concrete slab and remove voids.
Fill void under concrete stairs.
Concrete stone masonry.
If the concrete is deteriorated removal and replacement with interlocking stone is a better option.
Step 1 drill at least four holes through the slab at a point that s centered on the void beneath.
The void is under the concrete slab or foundation.
Dealing with voids whether they be stable or dynamic is an important part of maintaining your concrete slabs whether they be residential commercial industrial or municipal.
In the past i ve used sand soil or a combination of the two to push under the steps to raise the height of the ground.
Geolift can help to lift existing concrete surfaces and fix those problem areas around your house with much less labor.
Another option is to find out if there is a company that can pump sand under the porch.
Filling the void is probably the best route.
Not filling it will result in critters finding their way under the steps and making it their home.
There are several conventional and alternative void filling materials which can be.
If it is you will need to fill the void or the concrete will start to break apart and settle.
How to fill voids under a concrete slab.
Geolift works for driveways sidewalks patios garage floors even pool decks.
Additionally you now have water draining toward your structure instead of away.
If the cost is not too high it may eliminate a few hours of heavy labour.
If you see a void opening up under your concrete slabs give the concrete raising and leveling professionals a call we will get you taken care of.
Proper methods to fill concrete gaps holes cracks and resurface.
Dirt erosion underneath concrete front steps fill with gravel.
The first step is to drill holes in the problem concrete.
One expensive option is to tear out the concrete and re pack the area with sand and then pour a new porch.
And yes it is a foam just like your beloved spray foam.
This is a means of filling voids underneath concrete slabs by injecting pumping filler materials into the defective areas.
Filling the voids is a matter of accessing the void through the slab and then using a pump to place a concrete based fill material into the open space.