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What Is Slabjacking?
If your concrete is sinking…. there is a very good possibility that the concrete slab was installed on poorly compacted fill dirt. Sub-surface erosion and shrinking soils are also possibilities.
If you are fortunate enough to have a slabjacker in your area, you should not have to replace the concrete. These individuals can float a slab back to its original position by pumping a grout mixture of portland cement, crushed limestone, and other additives beneath your slab.
They simply drill strategically placed holes into the slab. Using a portable pump and flexible hoses, they fill these holes with the special mixture. Lifting a slab using this method can often be accomplished in a few hours.
Often the cost to perform this service is less than half that of replacing a new slab.
There are numerous benefits to slabjacking.
- It can be done in virtually any weather. The material injected beneath the slab provides a strong base.
- There is little or no disruption to landscaping.
- Nothing needs to be moved off the slab, as the pump can lift the weight of the slab and anything you have placed on it.
Here is a pictorial overview of Slab Jacking
A pattern of 1-1/4 inch holes are drilled through the sunken slab.
A grout mixture is pumped under the slab with our specialized
equipment. Once any void is filled, the grout becomes
pressurized, hydraulically raising the slab to the desired height.
The holes are patched using a concrete mixture.
Photos Courtesy of Concrete Slab Jacking, Inc.
Maryland USA
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