Repairing Guides

how to repair cracked uneven concrete driveway

by Lenora Lemke I Published 2 years ago Updated 1 year ago
image

  • If you have a lot of cracks, you may prefer to use dry concrete mix or a concrete patching compound instead. ...
  • Put the mix (or compound) in a large bucket and add water as directed on the label. A mixer paddle attached to a heavy duty, low-RPM drill makes mixing easier.
  • Pour the wet mix into the cracks and use the pointed end of a trowel to press it in until it's level with the rest of the driveway. ...
  • Let the new concrete repair dry as indicated on the label before you drive or walk on it.

What are my options for repairing a concrete driveway?

  • 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 .

More items...

How to fill cracks in a concrete driveway?

  • Prepare the sealant bottle as per manufacturer’s instructions (usually, shake well then snip off the nozzle
  • With a steady hand, follow the line of the crack with the nozzle, gently squeezing out the sealant
  • Go over the line with a putty knife, smoothing the ribbon of sealant into the surrounding concrete

More items...

How much does it cost to repair a driveway?

  • Phoenix, AZ: $1,500
  • Houston, TX: $3,400
  • Ft. Lauderdale, FL: $1,500
  • Philadelphia, PA: $2,100
  • Omaha, NE: $900
  • Chicago, IL: $2,000
  • Seattle, WA: $2,500

How do you fix a crack in a driveway?

How do you fix a large crack in a concrete driveway? 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.

image

How do you repair cracked and uneven concrete driveways?

1:142:13Fixing settling concrete - YouTubeYouTubeStart of suggested clipEnd of suggested clipThere are companies in the Toledo area that employ a method called lift slab where they drill holesMoreThere are companies in the Toledo area that employ a method called lift slab where they drill holes through the concrete inject a liquid fill that hardens under the concrete.

How do you fix uneven concrete?

1:583:37Concrete & Masonry : How to Repair an Uneven Concrete Floor - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd clean off the surface in preparation for the concrete glue well apply the concrete glue directlyMoreAnd clean off the surface in preparation for the concrete glue well apply the concrete glue directly to the surface. And you'll need just enough to coat the entire surface.

How do you Relevel a concrete driveway?

Concrete Driveway Repair Methods A-1 Concrete Leveling focuses primarily on the last method. We typically drill small holes in the concrete, then pump a material underneath them and gently lift the concrete back into place. This method is typically much faster than the other options, and less expensive as well.

How do you fix a large crack in a concrete driveway?

0:382:01Repairing Large Cracks In Cement With Fast Setting Cement PatcherYouTubeStart of suggested clipEnd of suggested clipOn thin sections of the crack it may be necessary to turn the trowel sideways to ensure the void isMoreOn thin sections of the crack it may be necessary to turn the trowel sideways to ensure the void is filled. Using the trial continue to fill the cracks applying pressure to completely fill the void.

Can you pour self-leveling concrete over existing concrete?

You can pour self-leveling toppings or self-leveling overlays over concrete surfaces you didn't think were salvageable, saving time and money. “It's faster and easier than pouring new concrete,” says Paul Koury, president of Westcoat Specialty Coating Systems.

Can you put new cement over old cement?

Yes, you can put new concrete over old concrete providing there are no issues such as significant cracks of frost heaves with your existing concrete. A new layer of concrete should be about two inches to ensure an even, strong coverage.

Is it cheaper to raise concrete or replace it?

Concrete raising lowers your overall costs, sometimes by up to 50% less than replacing the same concrete slabs, and is exponentially quicker in both completion and curing time.

How do you fix dips in a concrete driveway?

Repairing Small Holes Add patching compound to the hole, 1/2 inch at a time, with a trowel. Let it dry completely before adding another layer. Continue in layers until it's slightly above the level of the driveway. Trowel the compound over the patched area until it's level with the rest of the driveway.

Can I raise concrete myself?

Lifting a sunken slab may be necessary to level the surface. Hiring a professional service to lift, or jack up, the slab can be costly. You can avoid this expense if you do it yourself with the help of a jacking pump, which can raise the concrete slab to the needed level.

What is the best way to fill large cracks in concrete?

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.

How do you fill a large gap in concrete?

2:167:21How To Fill A Gap Between Garage Floor And Concrete DrivewayYouTubeStart of suggested clipEnd of suggested clipAnd then i'll be ready to start putting the backer rod in and then the self-leveling sealant what iMoreAnd then i'll be ready to start putting the backer rod in and then the self-leveling sealant what i also like about filling. These cavities with sand is you're confident.

Is it normal for a concrete driveway to crack?

Cracking is a normal occurrence when it comes to concrete driveways unless it's excessive and it happens very soon after installation. Cracks will need to be sealed to prevent further damage which is part of the ongoing maintenance of a concrete driveway that will need to be performed on a regular basis.

Causes of Cracked or Uneven Concrete

There are many reasons your concrete driveway may be cracking or uneven. Some of this has to do with your location. For example, if you live in an area where earthquakes are common, this shifting could cause breakage. While earthquake damage is rarer, we’ll run through some more common causes of a cracked or uneven driveway.

The Risk of a Cracked or Uneven Driveway

While cracked or uneven driveways may be an eyesore or even lower your home value, there are more serious risks involved.

Solutions for Cracked or Uneven Concrete

There are some slapdash DIY options for repairing concrete on your own. But for long-term, high-quality repairs or replacements, go with a pro. Here are some of the options if you use a professional concrete leveling company .

Takeaways

Uneven, cracked concrete is unsightly and unsafe. But there’s no need to put up with that problem on your property. Instead, contact a local professional team to help you get your driveway leveled and back in tip-top shape. And high-density Polyurethane lifting foam is the best way to repair your concrete so it looks and performs beautifully.

Why do you cover a driveway with plastic sheeting?

Doing the work on overcast days helps slow the drying process and allows more time to work. When rain is in the forecast as the concrete is curing, covering the driveway with plastic sheeting keeps it from getting wet. Denise Brown is an education professional who wanted to try something different.

What is the overlay material for a driveway?

The overlay material is 2 parts sand and 1 part portland cement mixed with enough water to make it the consistency of pancake batter. A concrete paint made out of the cement and water goes on the driveway’s surface first to act as a bonding agent for the overlay.

How long does it take for a degreaser to dry on concrete?

A degreaser or dish detergent applied with water and allowed to stay on the concrete surface for 30 minutes before rinsing and drying provides a clean surface to start the project.

How long does it take for a sanding overlay to dry?

Once the overlay becomes firm, you can roughen the surface with an old broom to make the surface slip-resistant. The overlay needs several days to dry.

Can you repair cracks in concrete before pouring?

Larger cracks need a bit more attention than smaller ones, but you need to repair all of them before pouring the overlay. Reinforced fabric tape placed in larger cracks helps prevent them from redeveloping. Polymer patch repair materials, applied following package directions, Can fill all the cracks and provide a good bond between the old concrete and the new overlay. Any rough edges after the repair patches dry can be smoothed with a hand grinder.

Can you put an overlay on a concrete driveway?

Once concrete cracks or develops holes, the damage only worsens until you correct the problem. Since it can cost too much to pour a whole new driveway, an inexpensive way to make repairs is to add an overlay on top of the uneven driveway. The thickness of the overlay depends on how unlevel the surface is.

What does it mean when a driveway crack is uneven?

What you want to watch for are cracks that are wider than one inch and are uneven, meaning they’re not located in a control joint but rather in the plane of the driveway. These could indicate an underlying structural problem, especially if the surface of the driveway is higher on one side of the crack than the other.

What are cracks in concrete called?

Very fine surface cracks, sometimes called “crazing, ” are an indication that the surface of the concrete dried too quickly when it was poured. While unsightly, these cracks in a concrete driveway do not indicate underlying structural problems. As long as the rest of your driveway is sound (no heaving, sinking, or crumbling), you can replace those tiny cracks with a smooth concrete surface by applying a high-quality resurfacing product, such as Quikrete’s Concrete Resurfacer. This cement-based product contains polymer modifiers and additives that are designed to form a durable and permanent bond with the existing concrete.

How wide should a crack be before applying sealant?

Before you apply the sealant, you’ll need to do a little prep work, including widening the crack with a hammer and chisel in spots where it’s less than ¼ inch wide and brushing away any crumbling bits of debris.

What happens if a control joint cracks?

Unfortunately, a control joint may widen and separate over time, creating a gap that detracts from the overall look of your driveway—and it could get worse.

How often do you cut concrete joints?

When large slabs of concrete are poured, the contractor either forms or cuts joints every eight to 10 feet, with the goal of limiting any shrinkage cracks caused during the curing process or by future slab movement. In this way, cracking is hidden deep within the joints so the smooth surface of the driveway is maintained.

What is the best way to fix a concrete slab?

Slab Jacking. Also known as mud jacking or slab lifting, slab jacking is an option that you can use to fix the concrete slab, irrespective of whether the entire section of the slab or certain portions of the slab has sunk. However, slab jacking is not something that you can do as a DIY project on concrete patios.

How long does it take for a concrete slab to cure?

Leave this to cure for around 30 minutes and then finish the surface using a trowel or a brush.

Why do you need concrete specialists for slab jacking?

This is because slab jacking requires expert knowledge and special equipment to get the best results . It may be a good idea to use concrete specialists to carry out the process for you. In the process of slab jacking, the concrete mixture is injected into the cracks and holes.

What happens when a concrete patio sinks?

When the concrete patio sinks or settles, this occurs unevenly in different sections. This results in wobbly, unstable, and uneven concrete surfaces. When the concrete’s weight is not supported uniformly from below, concrete cracks start to form.

Why does my concrete patio sink?

Just like other concrete structures, when concrete patios become older, they start to crack or sink because of general wear and tear, erosion, or settlement. When this happens, concrete patios will need fixing. The question is, how to fix a cracked uneven concrete patio? ...

What is the material that is pumped into concrete?

The polymer material, polyurethane, is pumped into the cracks and holes of the concrete patio slabs. It is pumped under the concrete patio’s surface, where it fills all the voids and binds with the soil. When the polymer material solidifies, it expands rapidly and lifts the surface of the concrete to the level where it should be.

What is the ground before concrete?

Before the concrete is installed, the ground is prepared and the earth is compacted using heavy machinery. Typically, the compacted surface usually comprises of gravel or it will have at least a layer of gravel. This is usually done to prevent the ground from sinking because of the weight of the concrete patio that is installed above.

image
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1 2 3 4 5 6 7 8 9