Concrete benders?

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One of the lines we use is “drill, inject, patch”. While simple in theory, the practical application of raising concrete is substantially more technical.

One of the comments we often hear from clients as we give an estimate is “I just need this one corner raised” – if only we were concrete benders.

Concrete has a couple of properties, it is really hard and it is quite ridged. Because of its rigidity it won’t bend much, which makes raising only one corner impossible. We can raise one side or the other, or we can raise the whole slab.

Hold something square or rectangular in your hand, a cell phone for example, and try to raise one corner without effecting the other sides of the “slab” you will find it is impossible.

Often, as concrete settles, adjoining slabs settle too which gives the appearance of a corner having settled independently, this is not possible.

The proper solution to the “corner down” situation is raising the adjoining slabs along with the offending corner. Only when the corner is raised do we see the degree off misalignment with the other slabs.

The opposite side of the “corner down” is the “corner up” often caused by a tree root. The solution is the same with one additional option for repair. As a tree root heaves a slab it lifts one corner, with lesser lift along two other edges, or it raises an entire side, depending on where the root is located in relation to the side of the slab. First we level the slab being heaved by the root and then we raise the adjoining slabs to create a trip free transition up and over the root. It is important to then cut the root so future growth will not continue to lift the slab.

The second option it to grind off the offending trips. While not as aesthetically pleasing, this is an option for the budget minded consumer. 1-855-752-2522 has hand held and walk behind grinders for jobs large and small.

Experience is the key to seeing beyond the simple “corner down” or “corner up” to the greater issues at hand.

For superior concrete raising, call the concrete raising and leveling professionals today, 1-855-752-2522.

www.SlabjackGeotechnical.com
1-855-752-2522

Mother used to say “An ounce of Prevention is worth a pound of cure”

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When we are called out to bid a job, the damage, as they say, is already done.  In this post we will be discussing the cause of most settling and what you can do to insure your slabs remain stable after we leave.

There are two primary issues that cause concrete to settle and they are often related;  soil compaction and excess water.  If you have settled concrete you likely have one or both of these problems, so, what to do?

Let’s discuss the first issue, compaction.  After the home is built it is nearly impossible to effect the deeper layers of the earth around your home so unfortunately, if your builder failed to compact, which is the rule not the exception, time will have to take its toll.  Typically the major settling will take place in the first two or three years and by year seven or so, you’re generally finished with the worst of it.

The second issue, dealing with excess water, can be  frustrating, especially if no thought was put into dealing with the inevitable rain and snow melt when the home was being built.   So, what can be done after the fact?

1) Install gutters and down spouts.  Down spouts should be directed at least five feet away from foundation walls and from walks and other concrete slabs.   Of all the slabs we raise, the most common is the one right in front of the entry.  Why?  A down spout, or roof design is nearly always dumping water at that point.

2) Do not plant bushes or sod near foundation walls or sidewalk slabs.  A good rule of thumb is to allow five feet between the foundations and plantings and two feet between walks and plantings. Plantings too close to walks or along foundation walls, cause root issues, erosion issues, and compaction issues.  A Slabjackers paradise!  Something to remember, most trees and bushes have a root system that is 50% larger than the width of the canopy.  That nice looking Japanese Maple that is nearly touching your eve has roots extending along your foundation and under your sidewalk. Water follows the roots and before long you have voids that further take top soils away and settling is well on its way.  For an interesting example of what roots can do to a driveway, go to our web site www.SlabjackGeotechnical.com and in the before and after pictures look at the driveway photo. (We had to raise three additional slabs to match the one that was raised)

3) Maintain fill along slabs, fill in any erosion you see prior to settling occurring and if all else fails, call us when the settling starts, before cracks develop, to raise and stabilize your slabs.

4) Give your sod and plantings the absolute minimum amount of water to keep them healthy.  Turn your sprinklers down until the sod begins to suffer then turn it up slightly.  Too much water cause funguses, such as necrotic ring spot and mushrooms to grow and some soils such as clay, allow concrete slabs to settle because water saturates, then drains very slowly through them.  A good example of this is a job we did in the Wenatchee area;  a sidewalk was settling, inspection showed fully saturated clay down to a depth of over six feet!  We could literally stick a probe two feet into the ground with one hand!  We advised the home owner to turn off her water for a week and to reduce the timer to ten minutes on that zone verses the forty minutes it was programmed for. Too often what sod needs is nitrogen and it keeps getting more water because “it isn’t green enough”

The key to stable concrete is a stable base, you can’t do much about compaction after the fact but you can reduce waters role in the equation. Plant well away from foundation walls and walks, reduce sprinkler timers to only what is needed. If water is pooling you may have clay soils and need to further reduce watering. If flooding occurs or you notice soils have washed out along slabs, replace the fill as soon as possible.  Finally if you notice settling call the concrete raising and leveling professionals 1-855-752-2522, the answer to settled and sunken concrete all across Eastern and Central Washington.

www.SlabjackGeotechnical.com
1-855-752-2522

Superior technology, Superior polymers, Superior results.

What are the differences in concrete raising geo-polymers?

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There are numerous Polymers on the market, some are very light weight, as light as 1/2lb per cubic foot and are typically used for insulation.  Other insulation foams can run as high as 2lbs per cubic foot, neither type of insulation foam provides satisfactory results for Slabjacking or Concrete Raising, though some spray foam contractors and ‘fly by night’ Slabjack Contractors may try to convince you otherwise.

Most of the general purpose lifting foams are in the range of 2-3.5lbs per cubic foot and are acceptable for walks, drives etc…

The better Geo-Polymers are even more dense and can support many thousands of pounds per square foot.  This is important, many times entry porches are poured solid and what may look like a simple six by six porch with two steps can weigh in excess of five tons and hold three cubic yards of concrete.

The best polymers are in excess of 3.5lbs per cubic foot and are fully hydrophobic, this means they are not effected by water, will set up completely in saturated soils and are impervious to pests, deterioration and compression.

Sadly, the majority of Slabjackers using this technology are using a very lightweight general purpose polymer, typically two pounds per cubic foot. While this is adequate for walks, we feel it is not up to the task of thick entry patios with large brick columns and/or super structures build on top of the slab.

1-855-752-2522 uses what we believe is the finest Polymer on the market today, RR401G. This fully Hydrophobic Polymer, weighs 4lb per cubic foot and is D.O.T. (Department of Transportation) approved, having undergone the rigorous approval process and is even tinted to match concrete.  For an interesting video go to our web site www.SlabjackGeotechnical.com and view the RR401g foam demonstration video posted there.  You will see something no wall foam or cheap substitute can do.  As a side benefit it is made of recycled plastic bottles, and is currently undergoing “green” certification.

Only by combining state of the art machinery, the finest Geo-Polymers, and a staff trained exclusively in Slabjacking, can superior results be expected. Slabjack Geotechnical is that company in Washington State and Northern Idaho.

Call 1-855-752-2522 for a no cost, no pressure, estimate today.

www.SlabjackGeotechnical.com
1-855-752-2522

Slabjack Geotechnical expands to the greater Spokane concrete lifting market

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 April 11-13th 2014, 1-855-752-2522 will have an exhibit at the Spokane Home Builders Association Show at the Spokane County Fair and Expo Center. We will be giving away a free concrete raising job (up to $500) so come, find our booth, introduce yourself, fill out a contest entry form and pick up a brochure to learn about the most advanced concrete raising process in the industry today for lifting your settled concrete back to the proper grade.

In addition to serving the entirety of Central Washington all the way to the Cascades, We will be serving the following cities; Spokane, Spokane Valley, Deer Park, Sprague, Medical Lake, Cheney and all surrounding areas  including northern Idaho. Homeowners, Business, Commercial buildings and Warehouses, Municipalities, Property Management firms, all have the option of using 1-855-752-2522 for their concrete raising, crack sealing and concrete grinding needs. Slabjack Geotechnical is a family owned and operated business, and we are licensed, bonded and insured in the state of Washington and Idaho.

We use the latest state of the art systems for dealing with your settled concrete, not mudjackings 1920’s technology. We use the finest D.O.T approved fully hydrophobic geo-polymers on the market today, these polymers won’t wash out, set up and seal out moisture in fully saturated soils and allow you to immediately use your concrete, even your driveway the second we finish your job! Other companies use mud to raise your settled concrete!

While geo-polymer Slabjacking materials are substantially more expensive, the advanced process is quicker so we are able to be very price competitive with traditional mudjacking. Savings of 50-75% over replacement cost are common.

So come to the Spokane HBA show this April 11-13th and look us up! We look forward to seeing you there.

www.SlabjackGeotechnical.com
1-855-752-2522

Superior technology, Superior polymers, Superior results.

Commercial and Industrial Slabjacking

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Facility Managers need engineered solutions to meet the ever changing challenges that come with managing properties.

1-855-752-2522 provides long term solutions for Warehouse Managers, commercial office buildings, and multi family apartment complexes.

Problem; Bluebird growers in Peshastin, Washington, a fruit packer and Controlled Atmosphere fruit storage company, has a pressurized cold storage, zero oxygen cooler that has a section of settled floor. In this room, large fruit bins are stacked to a height of nearly twenty five feet for long term storage. The settled section of the floor, measuring roughly 400 square feet had settled two to three inches in the center causing the bins to lean dangerously. A fall could be catastrophic, damaging fruit, equipment and potentially injuring workers.
-Solution – 1-855-752-2522 was called, after taking measurements and pulling several level lines across the settled section, holes were drilled in a grid pattern and expanding geo-polymer was injected beneath the concrete, solidifying loose soils and gently raising the thick reinforced slabs back to grade.

Problem; Cambridge Management, a property Management firm in Washington State had numerous A.D.A. or Americans with Disabilities Act deficiencies at three multi family properties prior to Federal inspections.
-Solution – 1-855-752-2522 was called, after extensive inspection a range of corrective measures were implemented. Geo-polymer Slabjacking, Concrete Grinding and Concrete Demolition and removal were all completed on time and within budget. Federal inspections at all three properties passed without a single deficiency.

If you have a facility that cannot be “down” Slabjack Geotechnical is the simple choice. We schedule around your operation, can often work while you are open and with our state of the art equipment and hydro insensitive polymers, provide lasting solutions that meet the demands of business today.

For a free, no pressure estimate, call today,

www.SlabjackGeotechnical.com
1-855-752-2522

Superior technology, Superior polymers, Superior results.

Why Slabjack Geotechnical?

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When choosing a concrete raising contractor what should you look for?

Experience – concrete raising is as much art as science and therefore it is not just a simple mathematical formula. Voids, slab position in relation to adjoining slabs, thickness of slabs, attached structures and more play a part in concrete raising. 1-855-752-2522 has raised thousands of slabs in a multitude of situations so we know what to do with your unique situation.

Integrity – we stand behind our work and warrant our repairs, even beyond what appears on our contract. If your concrete needs replacement you can guarantee we will not try to sell you a repair. If we can’t raise it for any reason there is never a charge.

Passion – We love what we do. We really have a great time on the job, raising concrete and making it look like it used to. We love the outdoors, working in the Cascades in the West of the state to Spokane and Norther Idaho in the East, from Yakima to Tri-Cities and Walla Walla. We enjoy dealing with our clients one on one in a way that solves their individual problems.

Cost – while we use state of the art equipment and the latest generation hydrophobic geo-polymers you will find that we are very competitive in the markets we serve. Compared to concrete replacement, we are often 1/4 to 1/2 the cost. In addition we use the latest software to estimate jobs. While no software can anticipate thickness of concrete or voids, it is comforting to know that we are not pulling numbers out of the air like some contractors do. Our estimates are based on the calculated amount of geo-polymer needed to raise your concrete back to grade and not on how much we can charge.

Quality – a lot has changed since the 1920’s Today’s materials and methods are far superior to yesterday’s materials and methods. 1-855-752-2522 uses state of the art equipment with electronic monitoring, materials that are fully hydrophobic and will under seal your concrete and not wash away with the next rain and employee training to insure only qualified technicians are on site.

Give us a call, we will come out, evaluate your concrete and provide a no cost, no pressure estimate to have your settled concrete raised back to level for a fraction the cost of new.

www.SlabjackGeotechnical.com
1-855-752-2522

Superior technology, Superior polymers, Superior results.

 

A Slabjackers life

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I love my job! I spent thirty years in the Restaurant business advancing from a Dishwasher to Cook to Assistant Manager to Store Manager to District Manager and then Owner and I can honestly say I would much rather enjoy a beautiful day outside raising concrete than behind a grill!

There are moments though. Slabjacking is as much art as science, we can’t see under the concrete so unexpected things can happen. Take our very first job as an example. As I began to inject the polymer under the driveway a snake, and about a foot of him, stuck his head out to see what was the matter! Rather startling when it is only a foot or two away from the stool you’re seated on.

At another job we were raising a patio, as the concrete began to lift I placed my index finger against the foundation to feel the slab as it rose up the foundation wall. Suddenly the slab jumped pinning my finger between the siding and the patio, fortunately I had a screwdriver to pry my finger out of the trap it was securely in! A quick trip to the emergency room confirmed a broken finger after which, we went back and finished up the job.

Give us a call, we’ll take the drama out of your concrete problems. We eliminate trips, seal cracks, eliminate liability, all for less than half the cost of replacement.

Jerald Sargent

Owner

1-855-752-2522

www.SlabjackGeotechnical.com
1-855-752-2522

Superior technology, Superior polymers, Superior results.

The cost of doing nothing

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Because concrete replacement is so costly, many business and home owners simply ignore or hope no one will trip on their settled concrete. Unfortunately in today’s litigious society doing nothing can be very, very costly. According to the National Floor Safety Institute, the average cost to defend against a slip/trip fall claim is $50,000 and the average jury award is $100,000. In addition to others, we ourselves and family members can trip on our own settled concrete. As we age things get more brittle. Broken wrists, broken teeth, hips and ribs have all resulted from trip falls over settled concrete.

The A.D.A. or Americans with Disabilities Act, requires any trip hazard over 1/4″ to be eliminated.

1-855-752-2522 can raise a settled 10×10 concrete slab settled 1″ on one end for about $300. We do ADA compliance for municipalities, commercial establishments and multi family housing complexes.

Give is a call today for a no cost, no pressure estimate to eliminate your trip hazards.

www.SlabjackGeotechnical.com
1-855-752-2522

Superior technology, Superior polymers, Superior results.

Should I replace or raise my settled concrete?

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The number one thing 1-855-752-2522 does to determine if your concrete is a candidate for raising, is to do a detailed evaluation of  the condition of your slab.  How badly is it cracked?  Is the top peeling off?  What is the condition of adjoining slabs?  These and other factors go into providing a quality estimate.

There is a point where replacement is a better option and we are up front with our clients if this is the case.  Better to retain a friend than have a dissatisfied client. If there are numerous cracks, if the top is deteriorating (spalling) and has effected the structural integrity of the slab it is likely time for replacement.

Now, the advantages of Slabjacking; raising settled concrete allows you to retain a consistent look, you won’t have new, light colored slabs, clashing with older darker slabs.  Concrete raising is quick, typically an hour or two to complete a job verses several days with replacement.  Concrete raising is much less costly, typically 1/3 to 1/2 the cost of replacement or less, finally concrete raising is much less disruptive to your landscaping than replacement, the operation is simple; drill, inject, patch. No heavy equipment, no mud or mixers, just a hose extended from our state of the art trailer through which we inject a patented, hydrophobic, (waterproof) geo-polymer that fills voids, compresses loose soils and gently expands raising your settled concrete back to original grade.

At 1-855-752-2522 our goal is to make it as easy as possible to do business with us. We provide no cost, no pressure estimates, professionally prepared with pictures and explanations so you will know exactly what to expect when we arrive on site. From Spokane  and northern Idaho to the Cascades, from Yakima to the Tri-Cities, call today for a no cost, no obligation quote to have your settled concrete raised back to original grade.

www.SlabjackGeotechnical.com
1-855-752-2522

Superior technology, Superior polymers, Superior results.