When is the right time to raise my concrete?

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“Should I just wait until my concrete has settled all the way?” or “I’ll just wait until it’s fully settled.” are things we hear often here at Slabjack Geotechnical.

The answer is generally “no” because as slabs settle further, damage will often result. Cracking, pulling away from the building and/or draining water to the foundation.

While no one likes to spend money on concrete repair it’s important to realize it only gets worse from today. More expensive, less athletically pleasing and greater potential for cracks.

Let Slabjack Geotechnical provide a detailed proposal about what’s going on, how we are going to fix it and what it’s going to cost. We are professional, knowledgeable and fair. Call today for your sunken and settling concrete solution.

1-855-752-2522

Superior technology, Superior polymers, Superior results.

To Raise or Replace

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The big question, once you have decided to do something about your settled concrete do you replace it or raise it?

This big question generally comes down to cost and if that is the only criteria then raising will be less costly in virtually every case. There are many advantages in raising rather than replacing, raising maintains the consistent look of the surrounding concrete, there is little or no damage to landscape and it will be available immediately.

What are the advantages of pouring new? It will look bright and new and the shape can be altered if desired. If there are fractures (cracks) especially several of them, we generally recommend replacement because raising the concrete will often open up the cracks further making them more noticeable.

You can count on Slabjack Geotechnical to deal honestly with you so your decision is the best choice for you. There is a time for raising and a time for replacement, we will present options so you can make the best choice for your unique situation.

Give Slabjack Geotechnical a call today to speak with one of our experienced office staff about setting up an estimate.

1-855-752-2522
www.SlabjackGeotechnical.com
Superior technology, Superior polymers, Superior results.

Slabjack Geotechnical SPI 350H – vs – PolyLEVEL PL250 & PL400

Slabjack Geotechnical
Slabjack Geotechnical

1-855-752-2522

www.SlabjackGeotechnical.com

Raising sinking concrete slabs,

When we entered the concrete raising business in 2011 we made a commitment to be on the cutting edge of the industry in order to provide the best value to our clients.

In addition to embracing technology both in our estimating software and with our truck and trailer metering equipment we determined to use the best polymers we could find.

What determines “best”?

1.  Superior lifting ability; After testing Both Polylevel PL250 and PL400 against SPI 350H we found the following differences; The SPI 350H has a much more vigorous expansion. The quick reaction time has a huge advantage; the ability to raise very heavy structures (concrete) without needing massive amounts of material. According to the literature provided with the materials, PolyLevel PL400 and even PL250 do not lift with the aggressiveness of the SPI’s 350H

2. Superior control; With a much faster setting polymer comes much greater control over the lift. This is especially important with smaller slabs such as sidewalks or slabs leaning against a foundation. Simply put the other guys polymers don’t cut it when lifting small slabs, the material migrates to places not desired and the lift is not forceful enough to localize lift to areas desired. Even on larger slabs such as driveways the other polymers create undesirable lift.

3. SPI has formulated 350H exclusively for 1-855-752-2522 the 350H (hydrophobic) is super fast reacting at very low temperatures which provides less off gassing, less chance of charing and superior control.

I could go on, there really is no comparison between the three polymers, the polylevel foam is more like void filling foam and not really up to the task of raising concrete. They are advertised as four pound foams but comparing them side by side they appears to be about half the density of SPI’s polymer. One is structural the other literally breaks apart or crumbles under foot.

You have a choice, Slabjack Geotechnical or some other guys.

Superior technology, Superior polymers, Superior results.

1-855-752-2522

www.SlabjackGeotechnical.com

Spokane concrete raising and leveling.

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1-855-752-2522

Have you seen our new concrete raising truck around Spokane yet?

It is an incredible piece of machinery that can handle small residential jobs all the way up to municipal projects such as freeway slabs and bridge deck approach problems as well as commercial and industrial projects.

Mounted on a Kenworth t300 platform we can carry the equivalent of thirty cubic yards of material, enough for all but the largest industrial projects.

With our second unit now in service and our third coming soon we can tackle any project in the state and beyond.

Call today for a no cost, no pressure estimate,

1-855-752-2522

wwwSlabjackgeotechnical.com

Superior technology, Superior polymers, Superior results.

Settled concrete in Spokane, Yakima, Tri-cities and Wenatchee

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Slabjack Geotechnical is the most experienced Slabjack contractor using the latest process, polymer injection.

Sometimes referred to as mudjacking, pressure grouting and polylevel, Slabjacking is the name used to define the process of raising concrete that has settled.

 

1-855-752-2522 covers the entire area of central and eastern Washington as well as northern Idaho for residential concrete raising. In addition 1-855-752-2522 covers the entire Pacific Northwest for commercial municipal and industrial concrete raising void filling stabilization and slab curl correction.

We service Spokane and all surrounding areas, Richland, Pasco, Kennewick and surrounding areas in Tri-Cities, Wenatchee, Lake Chelan, Leavenworth and all surrounding areas, Yakima, Selah, West Valley and all surrounding areas, we are also licensed in Idaho State and serve Coeur ‘D Alene, Post Falls, Hayden and surrounding areas in North Idaho.

Allow the most experienced concrete raising and leveling professionals to take care of your settled concrete today.

1-855-752-2522

www.SlabjackGeotechnical.com

Superior technology, Superior polymers, Superior results.

 

The many causes of concrete settlement

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It’s unsightly, it’s dangerous, it’s a potential liability but it’s easy to fix.

Concrete settlement is a very common problem affecting not only residential neighborhoods but municipalities commercial enterprises and industrial facilities. What causes concrete to settle?

1. Failure to prepare the site. If soil was disturbed during construction was it re-compacted? Was there a 4-6″ layer of compacted gravel placed under the slab? These two primary issues are the cause of much of the settling commonly found in new construction.

2. The next most common cause of concrete settlement is excess water. Dealing with water runoff is generally not on a builders mind at the start of construction, it should be. Trying to figure out where you were going to put downspouts, sprinklers and  water features after sidewalks porches and driveways have been poured is poor planning and asking for concrete settlement. Having a place for your run off to drain such as french drains well away from structures or into municipal water supplies if allowed in your jurisdiction will help your concrete remain stable.

3. Another cause of concrete settlement is the breakdown of organic material in your soil. As roots, debris and other organic material breaks down is creates void space that contributes to settlement. Water migrating through the soils takes with it small amounts of soil and sand and these also contribute to the gradual settling of soil.

4. Finally ground water migration can play a role in settlement in some instances particularly if you have a high water table. We did a municipal job where groundwater migration had created a six-inch avoid behind a municipal pool. While there is little you can do about a high water table you can fill voids as quickly as possible so the supporting soils are capable of carrying the load above.

In addition to the above, the type of soil that is predominate in your area plays a role in its ability to support structures. Whether it be sand, clay or silt each has advantages and disadvantages depending on its use. Some soils don’t drain well others are prone to wash out, still others will actually expand as much as 10% with water!

If someone failed in the planning phase and you are dealing with concrete settlement give the concrete raising of leveling professionals a call today.

1-855-752-2522

www.SlabjackGeotechnical.com

Superior technology, Superior polymers, Superior results.

 

Concrete crack and deep concrete crack repair by Slabjack Geotechnical

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Concrete crack repair and concrete crack filling are jobs that are often done by DIY’ers but to be done properly and to last several years certain steps need to be taken.

Choosing the proper material is important, whether you choose to use a polyurethane caulk which may adhere better or silicone caulk that is able to stretch further, preparing the concrete to receive the caulk is the most important step for a lasting repair.

If you have grass and weeds growing in your concrete cracks and joints you will want to remove the growth and any dirt that will interfere with the bond between the concrete and the caulk. This may mean pulling the weeds, pressure washing the dirt and debris out of the crack and then waiting sufficient time for it to completely dry. Even in cracks that appear to be clean either vacuuming or blowing out is a step that should be taken to remove dust and debris that will interfere with the concrete bond.

If the crack is deeper than a half an inch you will need to fill the crack with foam rope. Foam rope does two things first it allows the caulk to bind to both sides but not the bottom this aids in the ability of the repair to flex. Secondly the addition of foam rope greatly reduces the amount of material needed for the repair. Most big box home-improvement stores and small mom-and-pop hardware stores will carry one or two sizes of foam rope. Professional caulkers will carry three or four different sizes and have access to many sizes all the way up to three and even four inches in diameter.

The next choice you have to make after the type of caulk is whether you want self-leveling or non-sag caulk. Self-leveling flows into the crack and as the name suggests levels itself out eliminating the need to tool the repair. In contrast non-SAG is placed in the crack and then forced into the crack with caulking spatulas and then tooled to an attractive profile. Most professional Caulker’s prefer non-SAG material, while more difficult to use initially the material itself is more durable, less messy and more consistent.

Generally for concrete crack filling a standard gray, aluminum gray, or sandstone color will closely match concrete whether it be brand-new, a few years old or very old. There are however an entire pallet of colors available for color matching stained or colored concrete.

If you have concrete cracks that you need filled to preserve the look and keep your concrete from settling give the concrete raising and leveling professionals a call today, we fill thousands of linear feet of concrete cracks each year.

1-855-752-2522

www.SlabjackGeotechnical.com

Superior technology, Superior polymers, Superior results.

 

 

 

 

 

Potential concrete raising problems

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What are some of the potential problems that occur when having your concrete raised?

The primary problem is the possibility of generating cracks in the slab that were not their before. Concrete is incredibly durable it can support thousands of pounds of weight however concrete is not torsionally strong, in other words it can’t handle twisting or bending, both of which happen when concrete is raised.

Here are some of the precautions we take and some of the methods we use to avoid fracturing your concrete slab; we make the primary lifting injections along the sides or at control joints. We use extremely accurate gauges that help us see when binding or lifting is happening. In some cases we will pre-position the concrete with a jack to avoid the torsional loads being placed on concrete by a single lift point. The most critical factor of course is experience.

While we don’t guarantee against causing a crack in your concrete neither does a concrete contractor guarantee against cracks forming in a brand-new slab but we make every effort and have years of experience in limiting generating cracks in your concrete.

1-855-752-2522

www.SlabjackGeotechnical.com

Superior technology, Superior polymers, Superior results.

Concrete crack sealing by Slabjack Geotechnical

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One of the biggest frustrations we all have with concrete is the cracks that develop. I heard something the other day that made me laugh, “every load of concrete that comes from the plant has five or six cracks delivered with it, where they happen is up to you”

Control joints are placed in concrete to control where those cracks happen. Control joints should extend at least one fourth of the distance through the concrete, so if your concrete slab is 4 inches thick the joint should be 1 inch deep.

Once cracks develop either in the slab or at the control joint they need to be caulked to keep water from eroding the supporting materials under the slab and to keep plant growth at bay.

While this can be a DIY project 1-855-752-2522 seals many thousands of feet of concrete as part of our “Total Concrete Protection System” and to retain the warranty we offer our Slabjack customers.

Using either polyurethane or silicon caulk as a filler we first thoroughly clean the cracks and joints then place foam backer rod in the crack/joints then top with caulk, tooling each crack and joint for a uniform appearance.

Like anything, experience goes a long way for both a lasting caulk job and for the final appearance.

Call the driveway repair company today, 1-855-752-2522!

1-855-752-2522

www.SlabjackGeotechnical.com

Superior technology, Superior polymers, Superior results.

What can be done about a settling foundation?

 

Slabjack Geotechnical is now a certified installer of Pier Tech helical piers and we are excited to offer this service rather than refer it to a company hundreds of miles away.

What can be done about a settling  foundation? 

If you are dealing with the nightmare of a settling foundation here is what you need to know;

-In most cases it is repairable. While not an inexpensive repair, doing nothing is usually not an option unless you plan on walking away from the home. Here’s how to proceed;

First determine that foundation settling is the issue and not simply an interior slab settling. Slabjack Geotechnical is equipped to handle either problem but one requires a building and a geological engineering report the other doesn’t.

Once the determination is made that the foundation is settling the property owner hires the engineers, they will determine the position and the number of piers to be used. The soils engineer will be on site during the repair process in case obstructions such as large boulders are met to makes recommendations and/or approve changes in the placement of piers.

Most piering jobs are completed in a few days.

The cost for the pre-work reports runs about $4-7,000 with an additional $1850-$2150 per pier depending on depth and obstructions encountered. An average foundation repair job runs in the neighborhood of $15,000, not an insignificant amount.

If you have seen the tell-tale signs of settling; cracks in brick and stucco or sheet rock separation call us today, we can help.

1-855-752-2522

www.SlabjackGeotechnical.com

Don’t settle.

Superior technology, Superior polymers, Superior results.