How To Fix Pavement Cracks

Posted : admin On 8/27/2019

How To Fix Crack Concrete
How To Repair Cracked Paving Slabs
How To Fix Cracks In My Driveway
How To Fix Cracked Paving Slab
How To Fix Pavement Cracks In Wood

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They are not only a tripping hazard, but cracks in your concrete patio, driveway, or walkway can really compromise the curb appeal of your home. You've let these imperfections linger long enough. Here's how to fix them—easily!

Installations of concrete can last hundreds of years, but sooner or later, most end up developing small cracks, gaps, holes, and crevices. If your concrete path, patio, or driveway has begun to show its age, make the necessary repairs sooner rather than later. After all, what’s a small problem today is only going to get bigger and more difficult (or expensive) to fix. While in some cases it takes a pro to work successfully with concrete, almost anyone can fix cracks in concrete.

Here’s how it’s done.

MATERIALS AND TOOLS Available on Amazon
– Concrete repair mix
– Hammer
– Chisel
– Wire brush
– Mason’s trowel
– Putty knife
– Protective gear

Photo: shutterstock.com

STEP 1: Choose your concrete repair product.

Concrete surfaces cannot be repaired with concrete. Instead, use a concrete repair mix; these are readily available at home centers and online. Options include epoxy compounds, latex patching material, and mortar mixes. This last option works best to fill large cracks (or chipped edges), while the other products are suitable for cracks in concrete that are ⅛-inch wide or narrower.

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STEP 2: Prepare the cracked area for patching.

First, use a small hammer and chisel in combination to knock away any cracked, crumbling, or loose concrete. Chip to a depth of about one inch below the surface plane. Then, rinse the area thoroughly, scrubbing with a wire brush to dislodge any loose, lingering particles.

Bear in mind that this is dusty work. To facilitate cleanup, you may wish to spread a tarp beneath the work area. Most important, be sure to wear the proper protective gear.

STEP 3: Fix the concrete crack with your selected repair product.

Epoxy or latex. To concrete cracks ⅛-inch wide or narrower, apply an epoxy or latex patching product (view example on Amazon), mixed according to the manufacturer’s specifications. The material goes on either with a mason’s trowel or a putty knife. Force it all the way into the crack, then smooth the product level with the surrounding concrete. Different mixes cure differently; again, consult the directions listed on your chosen product.
Mortar mix. For larger imperfections in concrete, use a mortar mix. Creating your own mix is as simple as combining one part Portland cement, three parts masonry sand, and just enough water to form a thick paste (though you can also purchase repair mortar mixes, locally or in some cases, online.

Moisten (but do not drench) the problem area, then apply the mortar mix with either a mason’s trowel or a putty knife. As you work, take pains to eliminate air pockets by pressing down firmly on the applied product. Finally, smooth the patch so that it’s level with the surrounding concrete. Let it cure for about two hours, then cover the area with plastic sheeting to keep it moist. Sprinkle water under the plastic every day for a few days or until the surface has hardened up.

How To Fix Crack Concrete

Prevent future cracks in concrete by following a few tips from the pros.

Wide cracks in concrete are best patched and sealed with a concrete patching compound. Smaller cracks, less than 1/4 inch wide, can be repaired with a concrete caulk or liquid filler. Patching compounds typically are mixed with water and applied with a trowel. They have a texture similar to grout and can be smoothed and textured to blend with the surrounding area. However, the color of the patch will look like new concrete and will not match the old concrete. Hiding the patch completely requires painting the surface with an appropriate concrete paint.

How To Repair Cracked Paving Slabs

How to Repair Wide Concrete Cracks

The secret to fixing wide concrete cracks is to undercut the sides of the crack to give it an inverted 'V' shape. This helps the repair material to 'key' into the crack, creating a mechanical bond in addition to the chemical bond between the patch material and the concrete.

How To Fix Cracks In My Driveway

Chisel the crack with a hammer and masonry chisel to widen the base of the crack and to dislodge any loose material from the old concrete.
Remove all debris from the crack, using a wire brush. If desired, clean the crack with a pressure washer or a garden hose and spray nozzle.
Remove all water and debris from the crack with a wet/dry shop vacuum or a brush. Work carefully to remove all dust and grit from the crack. It's OK if the surfaces are wet, but there should be no pools of water.
Mix the concrete patching compound, following the manufacturer's directions.

Trowel the compound into the crack. Stab the trowel into the compound to remove air pockets and help work the patching material deep into the crack. Fill the crack up to the surrounding concrete surface.
Smooth the surface of the patch with the trowel, feathering the compound into the surrounding concrete.
Brush the surface of the patching compound with a dry paintbrush to texture the surface, if desired.
Let the compound cure as directed.
Paint or seal the surface of the patch and surrounding area, if desired.

How To Fix Cracked Paving Slab

How to Repair Narrow Concrete Cracks

Narrow concrete cracks can be filled using masonry crack elastomeric filler that can be applied with a caulking gun. Alternatively, many products come in bottles with an applicator tip. Very small cracks, such as hairline cracks, can be repaired using a vinyl concrete patching compound applied over the crack and then smoothed with a putty knife or trowel. For hairline cracks, applying repair caulk or crack filler over the cracks usually is not effective, as the caulk tends to peel off of the surface over time.