Under the Slab
This void was very large and retreated far under the slab. A lot of weight and it could have caused the concrete to crack or break. Now a very costly repair for the homeowner
The Void Length
The void was also very long and wide. Expanding to about 4 feet
We are looking at the opening of the void. This is about 7 inches high.
We used our PolyLevel Foam to fill the void. This won't deteriorate over time and is no reactive with anything in the earth. Making it safe to use in environments next to water.
When the part A and part B mis they create a ridge foam. This then expands under the surface of the concrete. If there is no way for the foam to escape then it will be ridge enough to lift the concrete. And strong enough to hold up sections of a road.