Expanding Foam To Lift Concrete Slabs

Locate the point at which the slab begins to sink into the soil by placing a carpenter s level onto the surface.

Expanding foam to lift concrete slabs.

This two component high strength high density hydro insensitive structural polyurethane foam supports 14 000 lbs per square foot. The stuff is designed to intentionally move whatever s adjacent to the gap it s being sprayed into. Heavy duty polyurethane foam for slab lifting soil stabilization among the leading high density polyurethane foam products available ap lift 475 offers a powerful solution that is traffic ready in 15 minutes. Specifically heavy concrete slabs that have settled over time and are in need of raising.

Time and money is lost. The foam lifting technique is a fine tuned system that is unique to every job that is tackled. In this scenario you will have created a bridge of foam lifting multiple slabs. Use 5 8 inch masonry bi t to drill a hole through the concrete and spray the foam into it.

With our wet northwest winters the soil under concrete slabs can become saturated and soft or wash out completely. The first step is to drill holes in the problem concrete. Moving in the other direction is an expanding foam called polylevel. The following video shows how dramatically effective this is.

So how do you raise a concrete slab with foam. Locate the dips get the right equipment and foam. Once the holes have been set the geolift is injected in between the concrete and the dirt. The foam will expand and harden filling the void in the ground and leveling the driveway.

Foamjection combines concrete lifting with a specially engineered expanding foam making it possible to permanently restore the concrete surface with little downtime and disruption. Once this occurs the only way to regain control over the slab is to cut through the layer of foam and attempt another lift again. Foam lifting is a modern approach a more modern approach to concrete leveling is through the use of expanding polyurethane foam that provides a wider range of benefits than traditional mud jacking grout techniques. The risk becomes higher when the soil below the slab is poorly compacted.

Drill a hole. If material reacts too slowly it can travel under and beyond the slab you are trying to lift and then expand. Foamjection offers numerous advantages for homeowners and business owners who need concrete repaired quickly and efficiently. Place chalk marks in a row on the slab extending from the low point to the beginning point of the slag spacing.

How to raise concrete with foam step 1.