This is another method for doing it yourself.
Lifting concrete slab with foam diy.
Use 5 8 inch masonry bit to drill a hole through the concrete and spray the foam into it.
Unlike the concrete mixture used in mudjacking polylevel is very light.
It can lift slabs of all sizes without adding extra weight which could cause further settlement of the slab in the future.
The concrete jacking process concludes with capping the holes drilled through the slab once the slab reaches the desired height and is verified as level.
Cap the holes with grout and allow them to dry.
Demilec a company located in texas has invented a type of insulation foam that can help all of the cracks and uneven pavement problems.
Locate the dips get the right equipment and foam.
Geolift can help to lift existing concrete surfaces and fix those problem areas around your house with much less labor.
Use the brick chisel and sledgehammer to undercut any edges of the sunken concrete as necessary.
Concrete lifting with a small sledge hammer brick chisel and drill.
Allow it to stand for half an hour so that it can settle.
This process is much the same as mud jacking an older method that uses a concrete slurry mixture to obtain the same results.
Geolift works for driveways sidewalks patios garage floors even pool decks.
The foam will expand and harden filling the void in the ground and leveling the driveway.
With a concrete drill or masonry bit drill small holes into the sunken area and slowly pour a thin mixture of cement into the holes.
You can make the effect less obvious by taking a small amount of the dust produced while drilling the holes and adding it to the grout mix.