Conditions where outdoor concrete has already begun to sink is not uncommon in Quebec and is often the result of shifting, a weak soil base or erosion. It causes driveways, sidewalks, walkways, concrete steps or patio areas to become tripping hazards and can affect property value.
Quebec soil has a variety of soil types, ranging in density and load-bearing capacities. When the weight above the soil exceeds the soil below, the soil will compact and settle. Clay and silt can also cause soil to compact when it becomes dry. Regardless of the reason, once soil becomes compact, heavy concrete above the soil will sink and crack. It's a gravity thing!
While it is a very noticeable problem, with the right contractor, it can have a very simple solution.
Previously, sinking concrete was repaired by a technique called "mud jacking" that uses a thick slurry to fill in the gap underneath the sunken concrete. While effective, it is not the most efficient way to solve the problem, and adds more weight above the compacting soil.
Today, select contractors in Quebec are trained and certified to provide a better alternative to mud jacking. PolyLevel is a less intrusive, lighter weight solution that doesn't add more weight to the problem.
Project Location: Pointe-claire, QC H9S 4R3
Comment: There are concrete slabs around a pool that have sunken at an angle toward the home next to the pool. The pool is on the highest side of the concrete slabs and the house is on the lower side. I can email you photos. I think the section is 10-15ft wide by 20-30 feet long
Project Location: Deux Montagnes, QC J7R 3A5
Comment: Our cement walkway at the front door is cracking with age and water filtration.
Project Location: Repentigny, QC J6a 8l2
Comment: Drive way. Dommage