Stabilizing concrete before settlement – Slabjack Geotechnical

April 20, 2017by Jerald Sargent0

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A huge frustration is knowing there are voids under your concrete but not thinking there is anything you can do about it. In the recent past you were mostly correct however Slabjack Geotechnical is changing all of that.

Until a Slabjack company gets large enough it is not cost-effective to carry more than a general purpose lifting foam or in the case of Mudjacking their material. In the case of polymer Slabjacking the materials have a limited shelf life and must be used within a few months and due to the relative high cost of polymers it is not cost effective for the vast majority of small operations to have a material that most would consider a “limited use” or “specialty” polymer. But Slabjack Geotechnical does! Why?

Three big reasons;

First – A two polymer approach provides for quick lifting of large slabs followed by much better filling of the void created when the slab was raised. The two polymer approach produces a more stable slab with lower resettlement issues and almost no possibility of generating cracks when void filling.

Secondly – Much of the work we do involves stabilizing slabs which have voids under them. Slab stabilization with a lifting polymer is difficult to do without fracturing the slab due to under slab point loading. Lifting polymers are designed to lift vigorously and not spread out more than two or three feet in either direction. Void fill and stabilization polymers are designed to rise very slowly and yet at the same time harden to a ridged high density foam. Due to the very slow rise the material covers incredible distances fully supporting the slab but not exerting huge compressive loads. As a result the slab is well supported without risk of slab fracturing.

Thirdly – We play an active role in designing our Slabjack rigs. We talk to the builders and work to find solutions such as “how can we as a company provide more than one material without the hassles associated with doing so” through these collaborative effort’s we have produced what we believe is the finest Slabjack rig in operation today. We now carry and regularly employ a “two polymer” lift and stabilization.

Finally, preventative slab stabilization can be done with very little risk of slab fracturing. In addition because of the characteristics of the polymer that we use as a stabilizing polymer we need very few 5/8″ inch holes to stabilize large slabs. As few as one hole every 100 ft.²

If you are concerned about your garage floor or your basement floor or your shop or warehouse floor. If you’re concerned about your driveway, your patio or your pool deck give the concrete raising and leveling professionals a call today.


Superior technology, Superior polymers, Superior results.



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