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Concrete Repair

 
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Old 02-09-2018, 06:32 PM   #1
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Concrete Repair




This is at a local gym that I’ve been to a few times and some friends will be helping the owner repair it tomorrow hopefully.

Dropping barbells and other things on the floor is causing the previous work to crack up.

What you’re looking at is about 12” wide and 1/4”-3/8” deep that will need to be repaired. Once they bust up the rest of the loose stuff, what product should be used to fill back in?
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Old 02-09-2018, 06:38 PM   #2
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Re: Concrete Repair


Feather patch. Not sure if the brand name, but different areas will call it something different.

Find it in the flooring section. Should be anywhere that sells flooring. Can be troweled to a “feather edge.”
Up to 1/2” thick. Dries in about 2 hours.


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Old 02-09-2018, 07:50 PM   #3
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Re: Concrete Repair


Ardex makes some of the best patching/topping products, but not if they're going to keep dropping the barbells on it .
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Old 02-09-2018, 08:00 PM   #4
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Re: Concrete Repair


Quote:
Originally Posted by builditguy View Post
Feather patch. Not sure if the brand name, but different areas will call it something different.

Find it in the flooring section. Should be anywhere that sells flooring. Can be troweled to a “feather edge.”
Up to 1/2” thick. Dries in about 2 hours.


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I'm aware of those sorts of products. But it's in a gym and they will continue to drop barbells and things on it. I assume just a basic feather patch wouldn't hold up right?

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Originally Posted by rustyjames View Post
Ardex makes some of the best patching/topping products, but not if they're going to keep dropping the barbells on it .
Yeah, that's why I'm here. Hope somebody has a good suggestion.
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Old 02-09-2018, 08:31 PM   #5
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Re: Concrete Repair


Insert a piece of QSWO.

Tom
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Old 02-09-2018, 08:36 PM   #6
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Re: Concrete Repair


Top the floor with sheet steel plates. I don't think any patch is going to hold up to repeated dropping of the weights.
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Old 02-09-2018, 09:08 PM   #7
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Re: Concrete Repair


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Insert a piece of QSWO.

Tom
Glued down? How would you account for an uneven substrate?
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Old 02-09-2018, 09:27 PM   #8
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Re: Concrete Repair


http://www.lyonsmanufacturing.com/products.html

I did over 3,700 sq ft skim over very badly spaulded concrete floor using their patching compound. We ran forklifts, steel wheeled carts, fully loaded #5,000 pallet jacks, moved moved #6,000 machinery over it for a period of 10 years. We did a good prep for it, & never had a single failure anywhere on the floor. It's a little tricky getting a slick finish on it on large areas, but not for small patches.

Basically, you clean area, prime concrete with bonder, & apply topping.
We used the Patchcrete product, but it appears they have added some others that may work better for your application.
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Old 02-09-2018, 10:28 PM   #9
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Re: Concrete Repair


Quote:
Originally Posted by Railman View Post
http://www.lyonsmanufacturing.com/products.html

I did over 3,700 sq ft skim over very badly spaulded concrete floor using their patching compound. We ran forklifts, steel wheeled carts, fully loaded #5,000 pallet jacks, moved moved #6,000 machinery over it for a period of 10 years. We did a good prep for it, & never had a single failure anywhere on the floor. It's a little tricky getting a slick finish on it on large areas, but not for small patches.

Basically, you clean area, prime concrete with bonder, & apply topping.
We used the Patchcrete product, but it appears they have added some others that may work better for your application.
Probably not available on the shelf at the local hardware store though...
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Old 02-10-2018, 04:57 PM   #10
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Re: Concrete Repair


Quote:
Originally Posted by Railman View Post
http://www.lyonsmanufacturing.com/products.html

I did over 3,700 sq ft skim over very badly spaulded concrete floor using their patching compound. We ran forklifts, steel wheeled carts, fully loaded #5,000 pallet jacks, moved moved #6,000 machinery over it for a period of 10 years. We did a good prep for it, & never had a single failure anywhere on the floor. It's a little tricky getting a slick finish on it on large areas, but not for small patches.

Basically, you clean area, prime concrete with bonder, & apply topping.
We used the Patchcrete product, but it appears they have added some others that may work better for your application.
A wheel is not a hammer.

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Old 02-10-2018, 06:38 PM   #11
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Re: Concrete Repair


They did the repair today with SLC. They pretty much know it won't hold up, but it at least buys some time. Next time around they would in advance plan farther ahead and maybe have a more ideal solution ready. Thanks for the help guys.
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Old 02-10-2018, 07:23 PM   #12
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Re: Concrete Repair


I would get with a decorative concrete supplier
They should have some 6-7000psi patch
Me personally I would grind it down and add a piece of 1/4 plate
The reason I brought up the patch is we went to a class one of our suppliers had going and they were talking about the strengths of some of there products (you’d be surprised)

But you’d have to figure out the force a dumbbell has probably similar to hitting it with a sledge hammer

Steel plate


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Old 02-12-2018, 08:44 AM   #13
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Re: Concrete Repair


They need to put dense mats down where barbells are used. If they can't afford the fancy ones the cow mats work great. I layed some down for a crossfit guy, about an inch thick but made of recycled tires, very tough to cut!

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