
- Sweep out the expansion joints to ensure that any pebbles, dirt or loose debris are removed.
- Scrub and clean the surface of the repair area with QUIKRETE Concrete and Asphalt Cleaner and a stiff bristle brush.
- Thoroughly rinse the area, after cleaning, and wait for the area to dry, before applying any sealant.
- Once the area is dry, add the backer rod (if needed). ...
- Then, using a utility knife, cut the tip of the nozzle, and insert the tube into a standard caulk gun.
- Use QUIKRETE Self-Leveling Polyurethane Sealant, and move the nozzle slowly along the length of the joint, allowing the sealant to settle.
- Immediately clean up any excess sealant with a commercial solvent or a citrus-based cleaner.
- Sweep away any dirt and debris from the area.
- Dig out and remove all the old material that's in the joints with a putty knife. ...
- With a wet-dry vacuum, clean out the joints between the slabs very well.
- Apply a bonding adhesive, usually epoxy, into the joints with a brush.
How to install expansion joints in a concrete driveway?
- – So, a driveway expansion joint, as a rule, is from 1/2-inch to 3/4-inch (12.7 mm to 19 mm) wide and as deep as the driveway is thick (5 to ...
- – All sidewalks should be at least 4 inches thick.
- – The expansion joint may be placed a little below the top surface of the sidewalk if you are rounding the edge or giving a sharp edge detail to the ...
Do very large driveway need expansion joints?
You need at least one expansion joint if the driveway leads to a garage or another hard pavement surface. Beyond that, it depends on how long the driveway is and how much temperature changes are expected. The thermal coefficient of expansion/contraction for concrete is 0.0000055 per degree F per length.
How to repair driveway joints?
- Many concrete crack fillers, sometimes called masonry crack fillers, are designed for cracks up to 1/4-inch wide. ...
- The use of a concrete backer rod is recommended for cracks wider than 1/4-inch, since these cracks are usually deep. ...
- Before you apply the new filler, break up any old concrete patch materials with a hammer or masonry chisel .
How to fill expansion joints?
- Sweep away any dirt and debris from the area.
- Dig out and remove all the old material that's in the joints with a putty knife.
- With a wet-dry vacuum, clean out the joints between the slabs very well.
- Apply a bonding adhesive, usually epoxy, into the joints with a brush.
- Insert foam backer rod.
- Cover and seal the joint.

How much does it cost to replace expansion joints?
The price to repair expansion joints and control joints greatly depends on how bad the damage is. Preventative joint filling can cost between $1.50 and $3 per lineal foot, but once expansion joint repair or control joint repair is required, the costs can vary from $15 – $100 per lineal foot of joints.
How do you repair an expansion joint?
Restoring Concrete Expansion Joints the Hard WayUse a scraping tool, like a 5-in-1, to scrape out the old concrete expansion joint filler.Vacuum out the concrete expansion joints.Use a caulk gun with your filler of choice and refill the joints.Scrape the sides and top of the joints to leave a clean finish.
How do you repair an expansion joint in a concrete driveway?
0:064:55How-To Repair Expansion Joints in Concrete (Video) | SealGreen.comYouTubeStart of suggested clipEnd of suggested clipHalf an inch depth of space for the caulk to fit in when you repair the crack also the materialMoreHalf an inch depth of space for the caulk to fit in when you repair the crack also the material comes in typically.
How do you replace an expansion joint in a driveway?
0:514:13How to Replace Wood Expansion Joints in Concrete Slabs - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe flexible vinyl fits snugly into the concrete gap and a mallet worked well to set it in place.MoreThe flexible vinyl fits snugly into the concrete gap and a mallet worked well to set it in place. They do recommend back filling with sand or gravel up to the bottom of the. Gasket.
Can you fill concrete expansion joints?
You can always fill these joints in your garage floor after an epoxy coating is applied. It can also be done after clear sealers, stains, or other floor treatments are applied as well. Not before. The easiest solution is to fill these joints with a self-leveling polyurethane joint sealer/filler.
Should you caulk driveway expansion joints?
Even expansion joints in your concrete driveway should be caulked. They can be the biggest culprit of water under your slabs. Notice how the caulking is slightly lower than the concrete slab around it. This protects the caulk from wear and tear of people walking and driving over it.
What material is used for expansion joints in concrete?
asphalt coatedA pliable material is used (asphalt coated, cork, plastic) to construct these types of joints. The material should extend the depth of the slab and extend the full width of the slab. Ideally, for expansion joints on the exterior of a structure, sealing these joint is preferable.
What do you use to fill concrete expansion joints?
Expansion joints must be sealed with a flexible sealant, like QUIKRETE® Self-Leveling Polyurethane Sealant or QUIKRETE® Non-Sag Polyurethane Sealant…or an expansion joint strip, to prevent water from penetrating the joint and deteriorating the sub-base.
What is the best concrete expansion joint material?
Silicone provides an excellent alternative to the three expansion joint fillers above, and for a few reasons. First and foremost, it is flexible and durable, allowing it to accommodate the natural expansion and contraction of the slab without cracking or breaking its seal.
How do you remove old concrete expansion joints?
0:141:18How to Reseal Concrete Expansion Joints Part 1 - Remove Old SealantYouTubeStart of suggested clipEnd of suggested clipInto both the left and right side of the joint. This will cut the sealant. And foam backer rodMoreInto both the left and right side of the joint. This will cut the sealant. And foam backer rod remove remove as much of the old sealant in backer rod as possible.
How do I fix the gap between my garage and driveway?
1:237:21How To Fill A Gap Between Garage Floor And Concrete DrivewayYouTubeStart of suggested clipEnd of suggested clipIn addition you also want to pull out any loose pieces of concrete. Because you just want a flatMoreIn addition you also want to pull out any loose pieces of concrete. Because you just want a flat secure clean surface on both sides of the gap.
How do I fill the gap between my house and driveway?
0:126:23How To Waterproof Crack Where Driveway, Basement and House ...YouTubeStart of suggested clipEnd of suggested clipHere to talk a little bit by using foam to fill cracks in our driveway in the gap between ourMoreHere to talk a little bit by using foam to fill cracks in our driveway in the gap between our driveway. And our house.
What material is used for expansion joints in concrete?
asphalt coatedA pliable material is used (asphalt coated, cork, plastic) to construct these types of joints. The material should extend the depth of the slab and extend the full width of the slab. Ideally, for expansion joints on the exterior of a structure, sealing these joint is preferable.
How do you fill expansion joints in concrete floor?
1:255:31How to fill a crack or joint in an indoors concrete floor - YouTubeYouTubeStart of suggested clipEnd of suggested clipA pancake mix type density. That allows it to flow into the cracks. And the joints in that area byMoreA pancake mix type density. That allows it to flow into the cracks. And the joints in that area by the way you can also use this material to fill in cracks.
What is the best concrete expansion joint material?
Silicone provides an excellent alternative to the three expansion joint fillers above, and for a few reasons. First and foremost, it is flexible and durable, allowing it to accommodate the natural expansion and contraction of the slab without cracking or breaking its seal.
What is the best concrete joint filler?
Epoxy and polyurea-based joint fillers are two of the most popular filler solutions. They help extend the lifetime of concrete floors and allow them to perform as intended throughout their usable years.
What is the best concrete joint filler?
Akonaflex™ Expansion Joint Filler is a superior-grade, one-component, urethane sealant and filler to be used in concrete joints as well as a wide variety of substrates.
Can you use polymeric sand for expansion joints?
Pool PM says it doesn’t matter as long as there is a 3/8-½ inch expansion joint there. The deck builders say they often use polymeric sand between the pool beam and deck pavers. I heard that self-leveling sealant with a backer rod may be better from someone.
Should you fill concrete expansion joints?
Just remember that expansion joints should always be sealed and filled with a flexible joint sealer and never be epoxied or coated over. Contraction joints can be filled in the same manner after a coating or sealer is applied.
Should you caulk driveway expansion joints?
Caulking Concrete Cracks and Expansion Joints Even expansion joints in your concrete driveway should be caulked. Notice how the caulking is slightly lower than the concrete slab around it. This protects the caulk from wear and tear of people walking and driving over it.
What do you fill driveway expansion joints with?
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.
What material is used for expansion joints in concrete?
Minimize Concrete Cracking and Damage with Expansion Joints. ASPHALT EXPANSION JOINT is composed of a blend of asphalts, vegetable fibers, and mineral fillers formed under heat and pressure between two asphalt -saturated liners. It is waterproof, permanent, flexible, and self-sealing.
What should I put between wood and concrete?
In most cases, either pressure-treated lumber or naturally durable lumber (defined by the IRC as the heartwood of redwood, cedar, black locust, and black walnut) is acceptable. In some cases, separating wood from concrete with a water-impervious membrane or vapor retarder is all that’s required.
How does expansion joint filler work?
The first allows the concrete expansion joint filler to settle into the joint and fill any cracks below it. The second pass fills the joint and overfills it slightly with the tape protecting the floor. Even with the two passes, a couple of spots needed a little more to eliminate low spots.
How to clean a knee joint?
Use a caulk gun with your filler of choice and refill the joints. Scrape the sides and top of the joints to leave a clean finish. Even in a small area, it takes a lot of time and you’re on your knees for most of it.
Do concrete expansion joints need to be sealed?
Expansion joints must be sealed with a flexible sealant, like QUIKRETE® Self-Leveling Polyurethane Sealant or QUIKRETE® Non-Sag Polyurethane Sealant…or an expansion joint strip, to prevent water from penetrating the joint and deteriorating the sub-base.
Should you caulk driveway expansion joints?
Caulking Concrete Cracks and Expansion Joints Even expansion joints in your concrete driveway should be caulked. Notice how the caulking is slightly lower than the concrete slab around it. This protects the caulk from wear and tear of people walking and driving over it.
How do you waterproof expansion joints?
On horizontal applications: apply approved sealant (typically polyurethane for concrete-to-concrete joints) in the opening with an approved backer rod to control the depth of the sealant. Apply the waterproofing manufacturers approved reinforced flashing material or membrane over the opening.
What do you fill concrete expansion joints with?
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.
What material is used for expansion joints in concrete?
Minimize Concrete Cracking and Damage with Expansion Joints. ASPHALT EXPANSION JOINT is composed of a blend of asphalts, vegetable fibers, and mineral fillers formed under heat and pressure between two asphalt -saturated liners. It is waterproof, permanent, flexible, and self-sealing.
How do I fill the gap between my garage and driveway?
The best way to repair your expansion gap is to use purpose-designed foam backer rods and self-leveling caulk. Both materials are available in most home improvement stores. Cut your foam backer rods to the proper length for your expansion gap and press them into the gap.
What do you put between driveway slabs?
Fill the trenches on either side of the driveway with small, rounded pea gravel (the size of marbles or peas). Do the same for the gaps between the concrete slabs, but stop filling the gaps about 2 inches from the top of the slabs.
How to remove a wood joint?
1. Put on work gloves. Start at one end of the wooden joint. Insert the flat tip of a digging bar between the lower edge of the wood and the ground. Place several two-by-four blocks near the end of the bar and down on the bar against the blocks to lift the end of the wood joint up. 2.
When replacing wood joints on sidewalks, what age did William Machin start?
Writer Bio. William Machin began work in construction at the age of 15, while still in high school.
How to put redwood in a seam?
3. Install the redwood in the seam with wood block s and a steel mallet. Start at one end and place a block flat atop the upper edge of the piece. Tap the block with the mallet to insert that end of the redwood partially into the seam. Reposition the block at 24-inch intervals, and use the mallet to fit the lower edge of the redwood into ...
How to measure redwood for a wood joint?
1. Measure the width and length of the open seam where the wood joint was removed. Obtain two-by-four or one-by-four construction-grade redwood based on the width and length of the seam. For example, if the seam is 1 1/2 inches wide and nine feet long, obtain a piece of two-by-four redwood that's 10 feet long.
How to remove split wood from a wood table?
Use a 16-inch nail bar and hammer to remove sections of the wood that split when prying the joint upward. Insert the hooked end of the nail bar under the end of the wood and pry upward. Repeat this, as necessary, to completely remove the old wood from the joint.
Can you replace wood joints in a driveway?
Over time, the wood used for the joints can deteriorate and replacement is necessary. Replacing the wooden joints takes some diligence to make sure the old wood is completely removed so that new pieces will correctly fit in the seams between the sections of the driveway.
