Repairing Guides

how to repair chipped garage floor

by Linwood Koelpin Published 3 years ago Updated 2 years ago
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Instructions

  • 1 A properly cleaned surface is the first important thing for successfully repairing chips in a garage floor. Wash the...
  • 2 You will need to fill the chips with concrete patch compound. Prepare the appropriate quantity of concrete patch...
  • 3 For bigger and deeper chips, you will have to use a levelling compound. Before you pour levelling compound, prepare...

Clean the slab and fill deep holes and cracks
  1. Clean the slab and fill deep holes and cracks. Start with a clean floor. ...
  2. Remove the loose stuff. ...
  3. Concrete Floor Patch: Fill cracks, craters, divots and pits. ...
  4. Create a dam. ...
  5. Spread it smooth, then let it set.
Mar 16, 2022

Full Answer

How to repair a cracked garage floor?

This will weld the crack together creating an excellent garage floor repair. STEP 1. Clean out the crack with a vacuum, remove any loose cement or aggregates. STEP 2. Inject the crack weld resin into the crack to wet it, it will soon get tacky. STEP 3. Push the dry silica sand into the crack to fill it.

What is the best way to repair concrete floors?

All you need to do now is to sweep the floor clean and vacuum any excess dust. This is the most common method to repair your concrete floor. Here’s why. If you have a few holes due to pitting, or a localized spalling, this is where epoxy concrete resurfacers will work best.

How long does it take to resurface a garage floor?

Cleaning and resurfacing the floor usually takes one day (on the other hand, clearing out your garage so you can work may take weeks!). Spreading the resurfacer smoothly is the trickiest part of the project, so it helps to have some experience with concrete or drywall finishing.

How do you clean a dirty concrete garage floor?

Sweep away the debris with a stiff-bristled broom. Apply concrete degreaser to the floor and scrub it in with a stiff-bristled broom. Clean the garage floor with a power washer. Be sure the floor is completely dry before proceeding.

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How do you fix chipped garage floor?

2:244:15How to Fix a Chip in Concrete | A DIY Guide - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou may have to take a little extra time to form the patch to follow the existing contours. FromMoreYou may have to take a little extra time to form the patch to follow the existing contours. From there once the patch compound has set up for about 20 minutes you can use a large grouting sponge.

How do you fix a small chip in a concrete floor?

Using a Chisel, Make the Crack Wider at the Bottom than the Top. ... Clean Out the Debris with a Stiff Fiber or Wire Brush. ... Fill the Crack with Patching Mix (also know as Vinyl Concrete) ... Address Any Pop-Outs. ... Wet the Surface and Apply a Concrete Bonding Agent. ... Pack a Small Amount of Anchoring Cement into the Hole.

Can a crumbling garage floor be repaired?

Fortunately, a pitted and spalled garage floor is repairable. Here's a quick overview of the process. Cleaning — The first step is to clean the garage floor. This means anything sticking to the surface — dirt, mold, road salt — will need to be scrubbed off.

Can you epoxy a pitted garage floor?

For larger areas of pitting and spalling, we recommend using a 100% epoxy concrete patch with a sand aggregate. The silica sand is mixed in with the epoxy to act as a filler. Legacy Industrial's 5-Ton Epoxy Patch Kit is a good example of this.

Can chipped concrete be repaired?

Is there any way to repair this without replacing our entire porch? McLean, Va. A: It's definitely possible to patch chipped concrete, even in a situation like yours, where the concrete isn't supported underneath. However, the patch might not dry to the same color and texture.

How do you repair concrete garage floor?

Clean the slab and fill deep holes and cracksClean the slab and fill deep holes and cracks. Start with a clean floor. ... Remove the loose stuff. ... Concrete Floor Patch: Fill cracks, craters, divots and pits. ... Create a dam. ... Spread it smooth, then let it set.

Can I use self leveling concrete in a garage?

Self-leveling concrete is perfect for basements or garages because it's resistant to mold growth. It also dries incredibly quickly. Your work will be completed faster and with less risk of someone accidentally stepping in it.

Can you skim coat a garage floor?

Once the moisture blocker has dried Ardex CD Fine can be used to skim coat the entire garage floor surface. This material can be mixed fairly loose and goes down as fine as 1/32 of an inch. Use a hand trowel or squeegee and work your way from back to front.

How much does it cost to fix a cracked garage floor?

Certain problems are much quicker and cheaper to fix than others. The table below shows average costs for common garage floor issues, based on a single-car 240 sq. ft....Garage Floor Repair Cost by Problem.ProblemAverage CostsCrack$150 - $1,000Holes$150 - $1,000Salt Damage$200 - $750Spalling$500 - $2,0007 more rows•May 25, 2022

How do I fill my garage pitting?

0:103:36Resurfacing a Garage Floor - YouTubeYouTubeStart of suggested clipEnd of suggested clipNow clean the floor thoroughly with a pressure washer fill any holes or cracks that are deeper thanMoreNow clean the floor thoroughly with a pressure washer fill any holes or cracks that are deeper than a half an inch with a thick mixture of the flow coat.

Can you epoxy over damaged concrete?

Not only can epoxy systems be very effective at repairing concrete cracks, but there are epoxy coatings available that also create a seamless, brand-new appearance to concrete surfaces as well!

Can pitted concrete be resurfaced?

Once the surface begins to pit, filling the divots with concrete is usually a temporary fix that loosens over time. You can fill pits with a bonding concrete repair material, which is similar to caulk. Restoring the porch to a more original appearance requires dressing it with a special resurfacing concrete mixture.

What is best to patch concrete?

The patches leave no trace: DIYers can tool them to blend in with the rest of the surface.BEST OVERALL: Red Devil 0644 Pre-Mixed Concrete Patch.RUNNER-UP: Damtite 04072 Concrete Super Patch Repair.BEST BANG FOR THE BUCK: Quikrete #862013 5.5 Oz Concrete Repair.BEST FOR FLOORS: Henry, W.W. Co.More items...•

How do you fix missing concrete chunks?

1:453:08How to Repair Broken Concrete Steps with QUIKRETE - YouTubeYouTubeStart of suggested clipEnd of suggested clipUsing a margin trowel mix the quick-setting cement for three to five minutes until a lump-free puttyMoreUsing a margin trowel mix the quick-setting cement for three to five minutes until a lump-free putty consistency is achieved if the mix is too wet.

What is a concrete bonding agent?

Concrete bonding agents are natural or synthetic materials used to join the old and new concrete surfaces. This agent can also be used to join the successive concrete layers. This chemical helps to allow different concrete surfaces to behave like a single unit.

How do you fill holes in concrete floor?

How to fill a Large Hole with ConcreteStep 1: Use a hammer and a cold chisel to level the bottom of the hole. ... Step 2: Brush on a concrete bonding liquid. ... Step 3: While the bonding agent is still tacky, mix the concrete. ... Step 4: Level the patch.

What causes a garage floor to crumble?

Water deposits on the garage floor and makes its way into the concrete’s capillaries. The water freezes and subsequently expands into its surroundings, causing the surface to weaken, separate, and finally crumble. Spalling.

What is the best product to repair spalled concrete floors?

Before we dig in, for those who don’t have time for the whole article on how to fix pitted concrete floors, here’s the TLDR! Our top pick to help with repairing spalled concrete floors is Rust-Oleum Concrete Resurfacer:

What is the best concrete resurfacer?

Best Concrete Resurfacer You Can Buy 1 Ideal for indoor/outdoor use to repair concrete cracks and holes in concrete 2 Two-part, industrial-strength epoxy permanently bonds concrete without shrinking or cracking 3 Fast curing product contains no unpleasant orders and allows concrete to be painted or coated in 8 hours 4 Creates an extremely hard surface that is stronger than concrete 5 Universal product works with any concrete coating

How to spread polymer cement?

Spread using a hand trowel or a metal-edged squeegee.

How long does epoxy take to harden?

Smooth it out using a putty knife or a trowel. In 24 hours your repair should be hard enough for grinding or sand flushing.

How deep should a garage be for spalling?

For a garage, the damage depth is most probably less than ¼ inches for spalling and ½ inches for pitting. More times than not, it’ll be less than that.

What to do if you hear hollow sound?

Heard a hollow sound? The area beneath is probably deteriorated too, and you should hit it with the hammer and expose the damage done underneath. You don’t want to have to do any extra repairs in the future.

How long does it take for muriatic acid to get off a garage floor?

Repeat until the surface of the concrete has a gritty, etched texture. Direct a garden hose at the garage floor for at least 10 minutes to rinse muriatic acid off the floor and out of the garage. Wait for the floor to dry before proceeding.

How to fill a crack in a hole?

Fill cracks and holes larger than 1/4 inch using an epoxy crack filler. Many of these products are injectable and feature a built-in applicator. Use a putty knife to scrape away excess epoxy as you fill holes and cracks.

What is the purpose of a sweep floor?

Sweep the floor to remove loose or spalling concrete, dust and other debris.

How to get etched texture on concrete?

4. Mix 10 parts water to 1 part muriatic acid in a spray bottle or watering can. Spray or pour the mixture on the floor to etch the surface, then go over the floor with your power floor scrubber again. Repeat until the surface of the concrete has a gritty, etched texture.

What is a garage floor made of?

In most cases, garage floors are made of a concrete slab. Just like any other material, concrete also undergoes wear and tear over the passage of time. Chips may occur in the garage floor when the damage starts. If not repaired properly, the chips will eventually widen to form cracks or even holes in the concrete floor.

What to use for bigger chips?

3. For bigger and deeper chips, you will have to use a levelling compound. Before you pour levelling compound, prepare the surface by applying a layer of bonding adhesive to ensure that the levelling compound adheres properly to the damaged concrete surface.

How long does it take to resurface a garage floor?

Cleaning and resurfacing the floor usually takes one day (on the other hand, clearing out your garage so you can work may take weeks!). Spreading the resurfacer smoothly is the trickiest part of the project, so it helps to have some experience with concrete or drywall finishing.

How much does it cost to resurface a concrete floor?

We used Quikrete Concrete Resurfacer (about $20 for 40 lbs.). Similar products, such as Sakrete Flo-Coat, are available. Buy enough to resurface the whole floor. To estimate the amount you need, check the label and then buy two or three extra containers. Better to return some than to run out before the job’s done.

How much does a concrete resurfacer cost?

Concrete “resurfacer” is a cement-based coating that forms a smooth, new surface right over the old concrete. The cost of resurfacer for a two-car garage is typically less than $200.

How long to let resurfacer sit in bucket?

Take two minutes to read the directions before mixing. The key to a smooth, lump-free mix is to let the resurfacer 'slake,' that is, sit in the bucket for a few minutes after the initial mixing.

How to clean a concrete floor with a pressure washer?

Scrub with a concrete degreaser and a stiff brush, then follow up with a pressure washer. Rinse twice to remove all residue.

How to get better results with resurfacer?

Recruit a helper to mix the resurfacer while you spread it. The material begins to stiffen quickly, so the faster you get it all mixed and applied, the better your results.

Do you have to chisel concrete?

Chisel away any loose fragments along cracks or craters; there's no need to bust away concrete that’s firmly attached.

What is garage floor repair?

Garage floor repair usually involves fixing cracks or patching pitted and scaled areas on the surface.

Why does my garage crack in the winter?

The garage isn't heated in the winter and the dirt under the concrete freezes causing it to expand and lift, or heave, the concrete. This upward pressure will make the concrete crack.

How to fill cracks in cement?

STEP 1. Clean out the crack with a vacuum, remove any loose cement or aggregates. STEP 2. Inject the crack weld resin into the crack to wet it, it will soon get tacky. STEP 3. Push the dry silica sand into the crack to fill it . STEP 4. Thoroughly saturate the sand with the crack weld resin and fill it to the surface.

Why is my concrete cracking?

There are some other reasons like, the concrete was poured too wet, or too much calcium chloride was added to the mix and it dried too fast, or the concrete was improperly cured. All these will lead to shrinkage cracking at some point.

How long to scrape a surface level?

STEP 5. In 10 - 15 minutes scrape the surface level with a putty knife.

What to do if playback doesn't begin?

If playback doesn't begin shortly, try restarting your device.

Can you fix cracks in concrete?

Repairing these cracks will only be temporary if the concrete continues to move up or down. If you think the floor is done moving you can repair those cracks and the shrinkage cracks with a material you inject into the crack and add silica sand for a filler. This will weld the crack together creating an excellent garage floor repair.

How wide can a crack in a garage floor be?

Before Fixing Cracks in Your Garage Floor. Cracks in the concrete can be very thin and minor, or they can be more than an inch wide and they can span the entire length of your garage. Most of them fall somewhere in between once they start to become noticeable and attract enough attention to have a homeowner looking for solutions.

What does it mean when a garage crack is structurally caused?

Structurally-caused cracks, on the other hand, are a warning sign that there’s something more serious that needs to be fixed. Especially if it propagates along the entire length of your standard garage size.

What does it mean when a crack in a floor is bulging?

When the crack is bulging out of the floor, that’s a sign that the foundation has shifted and contracted a bit, pushing up the bulging area. This is something that a professional can evaluate.

What to do if you have a crack in concrete?

If there are any loose pebbles or small stones inside of the crack in your concrete, make sure to get them out of the way. The same goes for any concrete alternatives including wood or rammed earth. A ShopVac will do a good enough job of removing dirt, debris, stones, and whatever else may be in there.

Why is the cement on one side of a crack lower than the other?

When the cement on one side of your crack is lower than the other side of the crack, the crack is likely due to the ground beneath shifting and a structural issue.

What is the purpose of repairing a cracked foundation?

The goal is to get any stray pieces out of the crack, and also to knock loose any parts that have crumbled and are about to fall off. Repairing around a crumbling foundation will just ensure that your repair doesn’t last very long!

Is it easier to repair a crack in a garage floor?

Garage floor crack repair is probably easier than you think. Whether you’re just starting your research, or you’re looking to try to justify a surprising estimate you got from a contractor by better understanding what’s involved, you’re in the right place.

Inspect the Cracks

Before you begin any repair, you need to inspect the cracks to see if they require professional attention or handle the project yourself.

Prep the Floor Area

Before you begin any kind of repair, properly clean up the area first. This enables the filler to bond securely with the concrete. Clean the entire floor and not just the area with the cracks, so your garage receives a total transformation.

Prep the Cracks

You also need to prep the crack itself, use a vacuum to remove all the gravel, dirt, and debris embedded deep inside the cracks. You can use a bristle brush to get down into the crack so you can remove all the chipped concrete.

Fixing Small Cracks

Repairing small cracks in concrete garage floor is an easy job. You will need an epoxy concrete crack filler, which should be filled down the crack in the concrete.

Fixing Large Cracks

If you are dealing with a larger crack, you will need to take additional steps, depending on the size of the crack. For very large cracks, you will need a cold chisel to undercut the crack in the floor; this will help hold the patch in place and prevent further damage to your floor.

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