In this video this old house landscape contractor roger cook shows how to lift a sinking concrete slab.
Raise concrete slab diy.
Pouring a concrete slab yourself can be a big money saver or big mistake.
Geolift works for driveways sidewalks patios garage floors even pool decks.
Geolift works in three steps.
This process is much the same as mud jacking an older method that uses a concrete slurry mixture to obtain the same results.
That ll allow the sunken slab to lift up.
And yes it is a foam just like your beloved spray foam.
The first step is to drill holes in the problem concrete.
The average 4 inch thick concrete slab only weighs 1 3 of a pound per square inch.
If it is done correctly.
Foam jacking is a concrete slab repair method that uses a high density polyurethane foam to raise the slab.
Wet concrete on skin can cause everything from mild redness to third degree permanently disfiguring chemical burns.
Cut through slab with gas powered saw fitted with 12 inch diamond blade.
The foam will expand and harden filling the void in the ground and leveling the driveway.
Geolift can help to lift existing concrete surfaces and fix those problem areas around your house with much less labor.
Use diamond tipped core drill to bore several large diameter holes through slab.
Raising a concrete patio slab costs about half as much a pouring a new concrete slab and only takes a few hours.
Smaller sections of sunken concrete can be cut out using a wet saw and then lifted out with a crowbar.
We show you the best techniques and tools so you get concrete forms right the first time.
Use 5 8 inch masonry bi t to drill a hole through the concrete and spray the foam into it.
Lifting a sunken slab may be necessary to level the surface.
You and your.
Sand also has air in it but it may be a better option for the do it yourselfer trying to raise concrete.
A good solution for diyers.
Locate the dips get the right equipment and foam.
So how do you raise a concrete slab with foam.
The average cost to mudjack a concrete patio is 450 to 900 or from 3 to 6 per square foot depending on the extent of the damage.