Repairing Guides

how to repair a bad concrete pour

by Opal Hoppe IV Published 2 years ago Updated 1 year ago
image

How to Fix a Bad Concrete Job

  • Step One: Get The Right Tools Or Hire A Qualified Contractor For The Job.. The right tools can make a difficult job seem...
  • Step Two: Know Your Concrete Problem Before You Start.. You will want to make sure that you understand what work needs...
  • Step Three: Remove And Replace As Necessary For An Ideal Fix.. If it's cracked concrete, a...

Part of a video titled How to Resurface Concrete - YouTube
0:39
4:28
Before resurfacing your slab deeply spalled areas and large cracks should be repaired using concreteMoreBefore resurfacing your slab deeply spalled areas and large cracks should be repaired using concrete resurfacer that has been mixed to a triable consistency.

Full Answer

How do you know if a concrete pour is bad?

Signs of Bad Concrete Pour During Concreting 1 Bleeding. 2 Segregation. 3 Spalling of Concrete. 4 Cracking of concrete. 5 Scaling of Concrete. 6 Honeycombing of concrete. 7 Alkali Aggregate Reactions in Concrete. 8 Crazing. 9 Delamination of Concrete. 10 Dusting.

What to do when concrete is not finished?

I work for a commercial concrete company, it is not uncommon to get an undesired finished product when it comes to concrete aesthetics. Unfortunately, your best option might be to have the contractor tear it out and pour it back. They've done it before and i guarantee they'll do it again.

Can You pour new concrete over old concrete?

If the existing concrete is in good shape structurally, you can pour new concrete over it to freshen it up. Worn or cracking concrete makes your outdoor areas look drab, outdated, and in need of fresh concrete. … If the existing concrete is in good shape structurally, you can pour new concrete over it to freshen it up.

How to get smooth finish on a concrete floor?

That really didn't need to happen. A mico-topping polymer might work if you want a smooth finish. Make sure your contractor subs it out to a concrete coating professional. Just have it ground down. I had the same exact thing happen. I didn’t pay for the job. I then used a fraction of the money to have it resurfaced. I looked at it this way.

image

Can you fix a bad concrete pour?

No, you can't pour concrete over old concrete. You have to remove the bad concrete before pouring a new layer of fresh cement on top if it's going to be for structural purposes.

Can you fix concrete after it dries?

It is possible to smooth concrete after it dries, but in many cases, it requires a fresh layer of concrete over the top of the dried surface. This can allow you to keep the surface smooth and even, even though the concrete is completely dry.

Can concrete be redone?

As long as your walkway isn't cracked all the way through, you can coat the slab with a concrete resurfacer, a no-shrink blend of Portland cement, sand, and polymer additives that fills divots and makes a uniform finish. Its natural color is dark gray, so buy enough to cover your entire walk.

Does concrete resurfacing really work?

That begs the question, “does concrete resurfacing last?” The short answer is, “yes.” If there are no issues with the underlying foundation the resurfacing agent pours onto, then the new material will last. It bonds to the foundation, creates a seal, and leaves you with a brand-new concrete driveway.

Can I sand down concrete?

Can You Sand Concrete? Even though concrete is a very hard material it is possible to sand concrete but it can only be done with the correct abrasives. Always opt for diamond grinding wheels or diamond polishing pads when sanding concrete.

Can rough concrete be smoothed?

Concrete is an incredibly durable, weather-resistant patio surface, but over time, it can develop cracks or become unpleasantly rough. Luckily, smoothing rough concrete or resurfacing it can be an accessible DIY project.

How do you Restamp concrete?

2:0017:02How To Resurface & Stamp Concrete: Super Stone Super SurfaceYouTubeStart of suggested clipEnd of suggested clipSo these surfaces have already been degreased acid-wash. And skin coated. In this area we're mixingMoreSo these surfaces have already been degreased acid-wash. And skin coated. In this area we're mixing material for the base coat. And over here the stamp mix is being prepared in a mortar mixer.

What is the best concrete overlay?

Although the overlay that you choose is certainly important, it is even more important that the appropriate product is used. Something like SunStone, Classic Texture, or Tuscan are all excellent products for concrete overlays.

How thick can you pour concrete resurfacer?

It depends on the repair. Concrete resurfacer can be as thin as 1/16 inch or as thick as ½ inch.

Is it better to resurface or replace concrete?

Again, if the answer is yes, replacement is the best option. If it's merely a worn or chipped surface, commonly referred to as delamination, then repair is a viable option.” Concrete will eventually wear out, adds Layne. “Over time, the elements will cause the concrete to break down.

Can you skim concrete over concrete?

Skim coating over concrete is not only possible, but it is much cheaper than replacing your concrete surfaces. By opting for a skim coat, you will strengthen your existing concrete surfaces and enhance their durability, thus giving you more time to come up with a big enough budget for replacement.

How long does quikrete concrete resurfacer last?

This new layer is specially made to adhere to the old concrete. It's extremely durable while being relatively thin and can last 10-20+ years if properly installed by a Pro and cared for. So yes it can last. Concrete resurfacing provides a like new finish at an affordable price.

Can you pour dry concrete then add water?

Fast-setting concrete is ideal for setting posts because there's no mixing—you simply pour the dry concrete from the bag right into the hole, then add water.

Does wetting new concrete make it stronger?

Curing plays an important role in strength development and durability of concrete. This is done by continuously wetting the exposed surface thereby preventing the loss of moisture from it. If water evaporates too quickly, it will weaken the finished product with stresses and cracking.

Does spraying water on concrete help it cure?

Spraying water on your new concrete is one of the best and oldest ways to cure your concrete. After new concrete is poured and finished the concrete begins its curing process.

Can I pour concrete over 2 days?

Although concrete will harden soon after pouring, it's still susceptible to damage from weight during the first four weeks. Wait at least 24 hours before allowing foot traffic, including pets, on a newly poured sidewalk or slab, and don't drive a vehicle on a new driveway for at least 10 days.

What is concrete used for in 2021?

It is a versatile material, which means it can be used in many different ways to create structures of all sorts. Concrete jobs are often done by contractors and builders who specialize in this type of work.

Can you smooth out concrete?

Otherwise, it will be difficult to properly smooth out the concrete as you are working on the project. If there are any areas of higher ground, use this to your advantage and place some of the concrete in those areas.

Can you fix a bad concrete job?

Fixing a bad concrete job is not always easy. You could be left with the ugly, unsightly results of improperly mixed cement and other materials that have caused your project to fail miserably. However, there are several steps you can take to fix the problem before it becomes worse.

Step One: Get The Right Tools Or Hire A Qualified Contractor For The Job

The right tools can make a difficult job seem easy, and there are specific tools you will need to fix your concrete problem. You'll want to pick up some patching cement as well as a trowel with at least an inch wide blade on it. For big jobs, you may need a pry bar and even an angle grinder.

Step Two: Know Your Concrete Problem Before You Start

You will want to make sure that you understand what work needs to be done before starting the job. Sometimes it's impossible to determine how bad your concrete problem is until you take the time to chip away at it yourself.

Step Three: Remove And Replace As Necessary For An Ideal Fix

If it's cracked concrete, a flaking one, or is otherwise damaged beyond repair, you will need to remove the rest of the old concrete. You can use a chisel and hammer if your patching job needs are small enough that this process won't cause too much damage.

Step Four: Mix The Concrete Patching Cement

You'll want to mix your patching cement with water according to the package instructions, and then use it immediately after mixing so that you can quickly put on a uniform layer which will set up in place nicely within fifteen minutes or less depending on conditions.

Step Five: Allow For A Minimum Of 2 Days To Dry And Cure Before Walking On The Concrete Again

When you finish applying your concrete patching mixture, allow the new concrete to rest for at least two days before walking or driving on it again.

Step Six: Use The Right Concrete Repair Products For Your Driveway Or Garage Floor

There are different types of concrete repair products available depending on your particular problem with your surface. For example, if there are no structural integrity issues but only a couple of isolated cracks in the area that need filling, then a standard type of crack filler will do nicely.

Step Seven: Finish Up With A Protective Coating

Plan on using your concrete surface regularly now that it's been repaired. Adding an extra coat of sealant will help prevent things like oil stains and other types of staining from happening in the future and protect the concrete against elements that can cause damage over time if left unprotected.

What causes concrete to be chemically reactive?

A chemical attack on concrete can occur if aggregates are alkaline and chemically reactive. concrete can be attacked by different chemically active matters like acids, some alkalis, various salt solutions, and organics such as sugars, and animal oils, especially if they contain free acids. It is signs of bad concrete.

What is cracking in concrete?

Cracking is one of the commonly observed and major defect occurred in the concrete. A crack in concrete is a fine fracture that extends partly or completely through the member.

Why does concrete honeycomb?

Honeycombing of the concrete sign of bad concrete which generally occurs due to the improper compaction for vibration of the concrete during placing and compacting the concrete on the construction site.

What causes concrete to scale?

The scaling of concrete generally occurs when the loss of surface portion of the concrete due to freezing or deterioration of concrete. The scaling of concrete is generally observed in air-entrained concrete.

What does it mean when concrete is bleeding?

The Bleeding of concrete is a Phenomenon in which free water in the concrete mix rises up or comes on the surface of the concrete layer of cement slurry. The bleeding is a sign of Bad Concrete Pour.

Is concrete a building material?

Concrete is one of the most widely used building materials in our construction industry. It is very important that concrete should be pulled into the mould with proper precaution and care otherwise, we will not get the desired strength of concrete.

Can you pour concrete in the rain?

Once the damage is done, it can be hard to rectify and will often ruin the appearance of the finished surface. Don’t let it rain on your parade.

image

Materials Needed

Instructions: How to Fix A Bad Concrete Job

  • Step One:
    Make sure the median is wet or slushy before pouring in your cement mix and leveler. Otherwise, it will be difficult to properly smooth out the concreteas you are working on the project. If there are any areas of higher ground, use this to your advantage and place some of the concrete in those …
  • Step Two:
    Use a level or laser leveling device to check for any unwanted high points you need to take care of before smoothing out the cement. Apply a small amount of cement to the high points using a trowel. Use the trowel to spread the cement over these areas until you have evened out the area…
See more on diyquickly.com

Things to Consider For Fixing A Bad Concrete

  • Buckling: Sometimes, when new homes are being built, the contractor might skimp on reinforcing the outside of walls with rebar. This will cause the concrete to buckle as it dries. Cracking: Cracks can happen if there are no rebar reinforcements for new homes or pour too fast on a hot day and cold mix hits your freshly poured concrete- this causes it to shrink and crack! Mitigating Agents: …
See more on diyquickly.com

Tips & Warnings

  • 1) Be sure to measure twice and cut once when cutting boards for use as levelers, so they are even across all portions! A good rule of thumb is placing them at least every eight feet and in a pattern that alternates from left to right. 2) Remember to use the appropriate PPE- safety glasses, gloves, etc.- when working with concrete or other hazardous substances! 3) Mixing concretein a …
See more on diyquickly.com

Frequently Asked Questions

  • Can You Fix a Bad Stamped Concrete Job?
    Yes, you can fix a stamped concretejob if it is not too bad. You will need to do a few things to fix the stamped concrete job. The first thing you will need to do is clean up any mess made. This could include removing chunks of concrete, debris, and mud. It would help if you also tried to cle…
  • What Does a Bad Concrete Job Look Like?
    A bad concrete job can look like wet, cracked, and stained concrete. It can also have large chunks that are missing or broken off, making it difficult to walk on.
See more on diyquickly.com

Conclusion

  • Fixing a bad concrete job is not always easy. You could be left with the ugly, unsightly results of improperly mixed cement and other materials that have caused your project to fail miserably. However, there are several steps you can take to fix the problem before it becomes worse. In this blog post, we have gone over how to fix a bad concrete job and mistakes you should avoid whe…
See more on diyquickly.com

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