flooring do i need to fill in concrete control joints
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flooring do i need to fill in concrete control joints.

flooring - Do I need to "fill in" concrete control joints ...

May 21, 2020  The slabs are separated by 1/2" wide control joints. Do I need to fill these joints in with a foam, concrete, or other kind of patch prior to installing a floating floor? The flooring is the Home Depot Pergo flooring with built-in padding. I am going to install a 6 mil vapor barrier on top of the slab prior to installing the flooring.

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Filling Control Joints in Concrete Slabs Concrete ...

Oct 08, 2015  Failure to properly seal or fill control joints may also result in moisture migrating through the joint into the base and subbase and incompressible debris filling the joint, impacting adjacent slab sections. When that happens, consequent base/subbase and slab distress can result in rocking slabs and even vertical displacement at the joint.

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Concrete Control Joints 101: How to Apply Filler For ...

Oct 18, 2018  Concrete control joints and the products used to fill them have come a long way in meeting the diverse needs of today’s industrial and commercial warehousing and distribution industries.

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Sealing Joints in a Concrete Slab - The Concrete Network

A sealer is soft and able to accommodate the concrete slab's expansion and contraction. The sealer's purpose is to prevent water, ice, and dirt from getting into the joint (and into the subgrade) and to prevent intrusion from below the slab—including of radon. Sealers can also improve the appearance of floors

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Concrete Control Joints - How To Minimize Cracking In ...

Properly placed control joints will allow concrete to shrink, expand, and contract, reducing the tendency for it to crack. I've been in the concrete floor business for over 30 years. I've installed thousands of lineal feet of control joints in my concrete floors. Most of the time we saw the joints using an

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What to do about cracks and control joints in your floor ...

Every concrete floor has or at least should have control joints in them and just about every floor has at least one crack. So lets start with control joints. A control joint is either a saw cut in the slab or a hand trowel groove. They are there to prevent cracks from happening in your floor as it expands and contracts.

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Control Joints in Concrete - When To Cut Spacing - The ...

Jul 01, 2021  Cut joints deep enough. Cut joints 25% of the depth of the slab. A 4" thick slab should have joints 1" deep. How to cut joints. Groover tools cut joints in fresh concrete. Saw cutting cuts joints as soon as the concrete is hard enough that the edges abutting the cut don't chip from the saw blade. Place joints under walls or under carpet areas.

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Should Expansion Joints Be Filled Epoxy Garage Floors

Apr 15, 2020  Improperly filled expansion joints is where the chips and cracks in floors are born. We do not fill the expansion joints; we paint epoxy over them to get the color continuity. We use 100% solids epoxy that is self-leveling and has a tough, flexible consistency and high elasticity. It goes over control joints, making the entire concrete floor ...

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Sealing Joints in a Concrete Slab - The Concrete Network

A sealer is soft and able to accommodate the concrete slab's expansion and contraction. The sealer's purpose is to prevent water, ice, and dirt from getting into the joint (and into the subgrade) and to prevent intrusion from below the slab—including of radon. Sealers can also improve the appearance of floors

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What to do about cracks and control joints in your floor ...

Every concrete floor has or at least should have control joints in them and just about every floor has at least one crack. So lets start with control joints. A control joint is either a saw cut in the slab or a hand trowel groove. They are there to prevent cracks from happening in your floor

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Filling Control Joints in Decorative Concrete Concrete Decor

Jul 01, 2014  Semirigid joint fillers are the most recent advancement in control joint filling. They continue to gain attention as polished concrete and finished concrete floors have become popular in retail, commercial and industrial settings. In heavy-traffic environments, especially under forklift loads, control joints take a lot of abuse.

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How To Fill Expansion Joints In A Garage Floor

But with the expansion and contraction joints in place, applying a finishing coat on the garage floor will still make it look like a bare mosaic of concrete slabs, only with color this time. Most people will consider filling these joints first before the epoxy or paint coat is applied for a smooth seamless finish with no dents and grooves.

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Joints in Polished Concrete Floors - Dancer Concrete

May 06, 2019  Filling in expansion joints in polished and stained concrete floors provides an easier to clean surface and a smooth and finished joint where debris or dirt could gather. What do you fill them with? Because of the natural movement in these types of joints, a

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Placing Joints in Concrete Flatwork- Why, How, and When

Contraction/control joints are placed in concrete slabs to control random cracking. A fresh concrete mixture is a fluid, plastic mass that can be molded into virtually any shape, but as the material hardens there is a reduction in volume or shrinkage. When shrinkage is restrained by contact with supporting soils, granular fill, adjoining ...

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Filling Gaps In Concrete Before Carpet AVS Forum

Jul 21, 2010  Many of the carpet places we visited suggested that you should fill in the gaps in the concrete before carpet is put down. I'm talking about the straight lines/gaps they put in the concrete so that it will crack in the gaps, rather in the middle. It breaks your floor up into multiple pieces.

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Concrete Control Joints – Proper Spacing, Depth and Timing ...

Control Joints are not intended to stop cracking but rather control cracking. It is best to cut joints as early as possible either while finishing with a concrete groover or within 6-18 hours after finishing with a concrete saw. Plan out your control joint spacing 24-36 times the depth of your concrete slab.

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Concrete Expansion Joints: Keep them Watertight and Crack ...

Foam backer rods act to fill in space between concrete joints so you don’t need to use a ton of self-leveling sealant. Here’s a BIG TIP: the diameter of the backer rod should be 1/8 inch larger than the width of your concrete expansion joint. This will ensure a water-tight seal. Push the backer rod down into the joint with your hand.

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How Often Do You Need Expansion Joints in Concrete ...

Feb 07, 2018  At Kaloutas, we know that interior and exterior concrete flooring is expensive. For that reason, you need to protect your investment from the most common form of damage in concrete – cracking. The most popular way to protect against random cracking is the installation of expansion joints.In this post, we’ll talk more about expansion joints and answer the question of how often you need

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Guide to Cutting Relief Joints in Concrete

Nov 02, 2016  One of the first places to start is knowing how much space you need between your cuts. While experience will help you get a better idea of what works for your concrete and climate, there is a rule of thumb to start with. Cuts should be approx. 2-3 times the thickness of your slab in feet. For example, a 6” slab would have cuts 12’ – 18 ...

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Why Your Concrete Floor Needs An Expansion Joint

Concrete's high compressive strength and hardness make the concrete useful for flooring applications in many industries. However, concrete moves during expansion and shrinkage, due to which the structural elements shift slightly. Expansion joints are spaces between concrete slabs that are filled with a flexible sealant, like silicone or urethane.

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Control Joints Saw Cut Filling - Concrete Floor Repair

In some cases, control joints are done after the concrete has cured and hardened by cutting lines in the floors with a concrete saw. To be effective, saw cuts should be 1/4 of the slab thickness. While these joints are important to the structural integrity of the floor, they also have the potential for damage, performance, and safety problems.

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How To Fill And Maintain Concrete Joints

Oct 23, 2019  Prior to applying a resinous flooring system on concrete, the joints need to be filled. However, before doing this the joints need to be sawcut and vacuumed in order to remove debris. Next, the joints should be filled with an epoxy mortar mixture, typically consisting of epoxy primer and sil-co-sil for control joints.

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Filling Control Joints in Decorative Concrete Concrete Decor

Jul 01, 2014  Semirigid joint fillers are the most recent advancement in control joint filling. They continue to gain attention as polished concrete and finished concrete floors have become popular in retail, commercial and industrial settings. In heavy-traffic environments, especially under forklift loads, control joints take a lot of abuse.

Get Price

Control Joints Saw Cut Filling - Concrete Floor Repair

In some cases, control joints are done after the concrete has cured and hardened by cutting lines in the floors with a concrete saw. To be effective, saw cuts should be 1/4 of the slab thickness. While these joints are important to the structural integrity of the floor, they also have the potential for damage, performance, and safety problems.

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Tips For Filling Joints - ArmorPoxy Floor Coatings

Jun 13, 2019  Cleaning out individual joints first is advised but sand should not be used to fill the joints as it is not compressible. The concrete used for filling should be dry for it to adhere perfectly. After application, the entire floor space should be given adequate time (3-5

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HOW TO: Fill a Control Joint by Dancer Concrete - YouTube

Dec 16, 2014  dancerconcrete/How Dancer Concrete Design fills a control joint with flexible joint filler for light-traffic concrete floors. Serving industrial, ...

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Control Joints, Expansion Joints and Cold Joints in Concrete

May 04, 2021  A basic rule to follow when judging how deep a control joint should be is that it should be roughly 1/4 the depth of the concrete. If a concrete slab is 4 inches thick, the depth of the control joint should be 1 inch. Much of the time, the depth that finishers install control joints is less than what is normally recommended.

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CONTROL JOINTS FOR CONCRETE MASONRY WALLS—EMPIRICAL METHOD ...

Shrinkage cracks in concrete masonry are not a structural concern. In addition, walls with adequate horizontal reinforcement may not require control joints, as the reinforcement effectively reduces the width of shrinkage cracks. See TEK 10-3, Control Joints for Concrete Masonry Walls—Alternative Engineered Method (ref. 2), for more information.

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Concrete expansion joints needed? - Fine Homebuilding

Nov 16, 2008  The lack of control joints doesnt bother me nearly as much as the lack of expansion joints as I can handle some cracking of the concrete surface rather than along a control joint. You don't need any expansion joints but you should cut in crack control joints immediately if not sooner.

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Concrete poured and no control joints cut - too late now ...

Jul 13, 2019  Do they abut other masonry, if so they should have expansion joints. I wouldn’t hesitate to cut control joints in the long one. Should be 1/4 as deep as the thickness of the slab. Ease the edges and fill with self leveling joint sealer. Idealy that long one should have alternating control and expansion joints.

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Guide to Cutting Relief Joints in Concrete

Nov 02, 2016  One of the first places to start is knowing how much space you need between your cuts. While experience will help you get a better idea of what works for your concrete and climate, there is a rule of thumb to start with. Cuts should be approx. 2-3 times the thickness of your slab in feet. For example, a 6” slab would have cuts 12’ – 18 ...

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Specifying movement joints and sealants for tile and stone ...

Oct 01, 2013  In some cases, the failure could have been avoided, or damage limited, if there had been proper movement joints. Just like concrete sidewalks, slabs, and bridges, tile and stone need to have movement joints to control the anticipated movements within a structure and the various climatic conditions it will be subjected to throughout the years.

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When, Where, and How to Make Saw Cuts in Concrete

Feb 06, 2021  Saw cuts are a used to create control joints in concrete, which help control where cracking occurs due to shrinkage. The cuts should be made at a predetermined spacing and only after the concrete has obtained sufficient strength but before internal cracking begins. Therefore, the timing of saw cuts is critical.

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What to Use for Filler Before Laying Vinyl Flooring Home ...

Dec 19, 2018  Floor filler is a type of portland cement mortar, much like the material used to fill any voids in an existing floor. This filler is more flexible, however, and moves with the vinyl flooring as ...

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Can you tile over concrete expansion joints?

Jun 07, 2020  Re: Tiling Over Concrete Expansion Joints. If the concrete is stable and fully cured--you can tile over this but you need to provide a slip membrane beteen the concrete and the tile. Two great products for this are Schluter Ditra (comes in rolls and works very well over concrete) or Laticrete blue 92. Click to see full answer.

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