Slabjacking Methods and material options

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There are several different ways to raise settled concrete. Mudjacking, sand jacking, concrete pressure grouting and polyurethane Slabjacking.

A brief overview –

There are several recipes for mudjacking. Most companies using this method use a mix of native dirt mixed with a little bit of fly ash and a touch of Portland cement mixed with water. Portland cement of course creates a stiff material as it dries out and the fly ash helps the material flow through the hose without clogging. There are other recipes and the goal is to have a consistent product that flows through the pump hose without “dry packing” and doesn’t shrink too much as it dries.

Sandjacking can be done only when the slab can be pre-positioned with jacks at which point dry sand is blown under the slab to fill the void space. This method is time consuming and impossible for much of the settled concrete out there due to the inability to use jacks against walls and such.

Concrete pressure grouting is another method that is it occasionally attempted. The problem with this method is the incredible overburden on week soils concrete creates. At thirty three hundred pounds per square yard it doesn’t take much material to have the equivalent of a full-size pick up truck sitting under your concrete slab trying to hold it up. Concrete pressure grouting is a horrible way to raise concrete and generally results in additional resettling followed by having to rip it all out and replace it at a later date.

Polyurethane slab jacking is known by several names such as the Uretek method, polylevel, polylift, geo-polymer Slabjacking and more. What they all have in common is using an expanding polymer to raise concrete. Available in fairly light duty formulations all the way up to extremely heavy duty formulations for residential, commercial, trench break foam, slab curl stabilization polymers and soil stabilization materials. The primary advantage of using polyurethane is you eliminate the inconsistency of the Slabjack material. In addition the material flows better under the concrete slab, much smaller holes are needed to inject the material through the slab and it is a faster process which helps negate the higher material cost.

Several polymer manufacturers produce material. NCFI, HMI, SPI and others are leaders in the manufacture of slab lifting polymers. The polymers are categorized by weight per square-foot but “rise time” is a critical factor to determine suitability for residential or commercial lifting. Two different polymers both four pounds per square foot may have very different lifting characteristics with one moving large distances under the slab and the other aggressively lifting in a very limited area. One would be a good choice for a large freeway slab but completely wrong for a residential sidewalk. In addition the temperature of the material and the substrate play important roles in the technique used to raise the concrete slab.

Call the experts at 1-855-752-2522 today for an on-site estimate to have your settled concrete raised.

1-855-752-2522

www.SlabjackGeotechnical.com

 

 

 

 

 

Concrete raising glossary of terms

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Slabjack – the generic term for raising settled concrete.

Mudjack – raising concrete with a mixture of soil, fly ash, portland cement and water.

Polylevel – a trademarked name for raising concrete with polyurethane.

Uretek – company that developed Slabjacking with polyurethane. (The Uretek method)

Sandjacking – using sand as a fill material to level concrete.

Pressure grouting – using hydraulic pressure to lift a concrete slab (mudjacking)

Polymer – two materials (poly) combine to make polyurethane foam.

For solutions to your settled concrete problems call the professionals 1-855-752-2522 we utilize the polyurethane Slabjacking method, the most advanced, least intrusive and most efficient method available.

1-855-752-2522

www.SlabjackGeotechnical.com

Superior technology, Superior polymers, Superior results.

Tools used to raise settled concrete

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Modern concrete raising has gone from my messy, muddy operation to one that is relatively quick, sanitary and cost-effective. Still, many common construction tools are used in addition to state-of-the-art metering and pumping equipment. So what are the tools and what are they used for?

Hammer drill – used to drill 5/8″ holes for the injection ports as a means to get material under the slab.

Concrete saw – used to separate concrete slabs to reduce binding and slab breakage.

Ports – are plastic or metal valves placed in the concrete they allow material to be injected under the slab.

Impingement gun – injection gun that mixes two materials as it places material under the concrete.

Resin and isocyanate – materials that combine to form polyurethane foam used in Slabjacking.

Other small tools include heavy-duty jacks when needed, pry bars, tools to clean out ports, dial gauges, levels, hammers, sockets and more.

Trailer or truck mounted equipment includes generators, air compressors, pumping equipment and hoses to get to where the settled concrete is and sufficient storage for material used in the process.

Contact the concrete raising and leveling professionals today at,

1-855-752-2522

www.SlabjackGeotechnical.com

Superior technology, Superior polymers, Superior results.

 

 

 

It’s just a small sidewalk trip hazard you say?

 

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According to the National Floor Safety Institute the average medical cost from a slip/trip fall is $22,800! The potential legal costs and jury awards are several times that amount. Rather than ignore the “little trip” have it fixed by Slabjack Geotechnical.

Whether it be a walk from your driveway, a trip on your driveway or a sidewalk by the street, you, the homeowner, not the city, are responsible for maintaining the walk and keeping it free from snow, debris and known hazards such as trips due to settled concrete.

A quick and unobtrusive process, Slabjacking raises settled concrete through the use of an expanding polymer grout. Mose jobs are done in a couple of hours and the walk is available for immediate use. No waiting for forms, concrete and curing. No destruction of lawns or plant, just a quick DRILL, INJECT, PATCH.

Call today,

1-855-752-2522

www.SlabjackGeotechnical.com

Superior technology, Superior polymers, Superior results.

Concrete crack and joint caulking and repair by Slabjack Geotechnical

Slabjack Geotechnical
Slabjack Geotechnical

 

One of the things that happens when concrete has uneven support is that control joints break and concrete cracks. Once this happens it is important to seal those joints and cracks to avoid further erosion of supporting base soils.  If concrete settling has occurred you will want to have the concrete leveled prior to sealing the cracks and the joints. While this is often a do-it-yourself project many people simply want it taken care of and to have a quality job done. So what does a quality job consist of?

Like painting, a quality job starts with a thorough cleaning of the surfaces needing to be caulked. Without adequately cleaning out the crack or joint the material, which ever you choose whether it be polyurethane or acrylic or silicone will not adhere to the concrete. This critical step is often overlooked by the DIY or the amateur.

At 1-855-752-2522 we remove any plant and weed growth, blow out with a high pressure air hose any remaining dirt, moss and debris then insert a properly sized foam backer rod (simply a foam rope) The foam backer rod helps the caulk adhere to the sides but not down into the bottom of the crack which would reduce the ability of the material to flex as the concrete expands and contracts throughout the season. We typically carry four different sizes of backer rod from 1-4″ to 1 1/8″ but can order rod as large as 3″ diameter or more.

Finally we apply the caulking material and tool it to a slightly concave profile. This ensures that the caulking isn’t walked on or driven across which would reduce its life expectancy.

If you have sunken and settled concrete give us a call we will not only provide a written estimate for raising a leveling you’re settled concrete but also joint and crack filling, call today.

1-855-752-2522

www.SlabjackGeotechnical.com

Superior technology, Superior polymers, Superior results.

Raising settled concrete in Richland, Pasco and Kennewick By Slabjack Geotechnical

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Slabjack Geotechnical is the most experienced Slabjack contractor in the Tri-Cities, period. With over nine hundred jobs successfully completed and thousands of slabs raised you can be confident in our company and our warranty.

Whether you have a residential driveway or patio, a commercial apartment building with settle sidewalks, an industrial warehouse with settled concrete or slab curl or a municipality with settled bridge approaches, settled concrete roads or undermined culverts Slabjack Geotechnical is your one stop concrete raising and leveling contractor.

Common residential jobs include sidewalks, driveways, patios, pool decks, garage floors, stoops, porches, shop floors, interior floors including basement floors and more.

Common commercial and industrial jobs include shop floors, warehouse floors, grain bins and silos, void filling and stabilization, ADA compliance at condos associations, apartments and more.

Common municipal jobs include pool decks, bridge approach raising, culvert stabilization, sidewalk trip hazard removal, school walks and courts and more.

1-855-752-2522 and our partners have worked in nearly all fifty states and Canada. There is no job too large or complex for the experts at 1-855-752-2522, call today.

1-855-752-2522

www.SlabjackGeotechnical.com

Superior technology, Superior polymers, Superior results.

Culvert repair and leak sealing with Slabjack Geotechnical

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One of the things we do to save water districts and irrigation districts as well as municipalities a ton of money and down time is leak sealing. It is a fast and lasting solution to the problem of cracked and leaking culverts, canals and pipe.

The solution is our expanding hydrophobic polymer. It pushes out water and seals cracks, joints and holes up to several inches in diameter. In many cases we can even work with water in the culvert or canal.

Culverts are prone to undermining especially during high water flows such as winter runoff. In addition, joints can and do fail and cracks can develop. These problems, if not sealed result in loss of water, washouts, settling bridge approaches and worse.

Using our patented hydrophobic polyurethane grout 1-855-752-2522 seals leaks into and out of pools, culverts, canals, pipes, manholes and just about anything else you can Imagine. Call today.

1-855-752-2522

www.SlabjackGeotechnical.com

Superior technology, Superior polymers, Superior results.

MRSC roster in Washington state Slabjack Geotechnical

Slabjack Geotechnical
Slabjack Geotechnical

The MRSC roster is used by participating municipalities and other agencies to find approved vendors and contractors to do business with. Slabjack Geotechnical is one of these vendors. If you are a governmental agency then Slabjack Geotechnical is an approved concrete raising and leveling business.

From the state to the county and city along with school districts, housing agencies, water districts, irrigation districts and more Slabjack Geotechnical is your source for concrete raising a leveling in addition to crack and joint ceiling and concrete surface sealers.

Specializing in polyurethane injection Slabjacking for the ultimate in Longevity and durability most jobs are completed in a single day. With the capability of bringing multiple rigs to the job Slabjack Geotechnical can handle the largest jobs whether it be a county culvert stabilization project, raising a state highway bridge approach or a school district with side walk trip hazards we are your one stop contractor in concrete leveling and stabilization. Call today,

1-855-752-2522

www.SlabjackGeotechnical.com

Superior technology, Superior polymers, Superior results.

 

Slabjack Geotechnical is your full service concrete raising contractor

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As a leading concrete raising/Slabjacking contractor we were contacted recently by Foundation Supportworks Inc about partnering with their organization to help both of us grow our business.

After much discussion 1-855-752-2522 has decided to join forces with Foundation Supportworks/PolyLEVEL to better serve those with sinking and settling concrete.

FSI (Foundation Supportworks Inc) is a leading manufacturer of helical and push piers as well as their “smart jacks” for sagging floors and having recently entered the polyurethane Slabjacking revolution they have been looking for partners which share their vision of superior foundation repair methods such as our Geo-polymer injection Slabjacking along with FSI’s engineered foundation systems.

1-855-752-2522 looks forward to a long and productive partnership as we provide superior foundation solutions and services to our clients in Washington and Idaho.

1-855-752-2522

www.SlabjackGeotechnical.com

Superior technology, Superior polymers, Superior results.