Polylevel Injection.
Polylevel Injection can be used to raise a concrete slab.
Polylevel Injection.
During installation, the expandable Polylevel foam is injected under the slab raising it.
Polylevel Injection.
Unlevel concrete slabs can be raised to be level with the remaining slabs.
Polylevel Injection.
Now with these slabs lifted and even, the sidewalk looks brand new.