Concrete floor
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Junior User
Joined: Jan 2004
Posts: 78
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From: Kentucky Go Cats
Concrete floor
I built my garage first i didnt have the money to poor the whole floor so i pured half,When i later did the other half i couldnt get help so i figured i would just poor half of what was left.The truck showed up 2 hrs late.and instead of 3 yards they brought 5( not complaing only paid for 3)But i was bymyself and had to move my forms and level it.Plus get to work.Now part of my floor is higher than other.what or is their a way to grind it down.It doesnt have to be perfect level i would just like to get the bumo out the middle
Junior User
Joined: Feb 2004
Posts: 52
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From: ky
hey ole boy, i'm a ky boy too. i work in a concrete plant, if you got 5 yds instead of 3 they loaded your 3 on top of 2yds of old concrete, that is why you were rushed to work it. fresh concrete on top of old won't freshen the old concrete it makes the new concrete set up like it is already old. you can grind it down, but you loose your good surface and expose the agregate. another tip is get a good sealer and apply a couple coats, cuts down on dust coming from the surface and it protects the concrete surface from oil and road salt which will eat the top off the concrete. if you have a nice garage i would probably bust it up and do it over, if it is bad you will be mad ever time you look at it. good luck.
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
Yeah that driver should have dumped that 2 yds at a "project" in the plant or at a buddy's house. When I was driving we always had a informal "list" where forms were waiting for a yard ot two...
Whenever I pour a big project at the house I always have a "little project" set up somewhere so that I can place an extra yard or so.
About all you can do is grind off any small bumps, changing the level is out of the question. If it is too far off the only thing you can do is break it out and put some more in.
Whenever I pour a big project at the house I always have a "little project" set up somewhere so that I can place an extra yard or so.
About all you can do is grind off any small bumps, changing the level is out of the question. If it is too far off the only thing you can do is break it out and put some more in.
FTE Legend
Joined: Sep 2003
Posts: 53,911
Likes: 2,375
From: NY and VA
Try cleaning off the sealer on the old side, apply bonding agent. Use a sand mix conc to taper out the difference in hight.. you might have to add a "fortifying" agent for extra stength. I had to do this in one corner of my garage where the floor dropped (had 8 390's and 312's stored there) held up well over 5 northern winters. Good Luck, George
Junior User
Joined: Feb 2004
Posts: 52
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From: ky
no any new concrete will just crack and seperate due to the thinness. about the only products that will adhere and last are acrylic or epoxy. if it is only like a quarter inch or so i would just wait and let it settle and see what it does, if it is a new garage it might settle some, moreso if it was poured on wet or uncompacted subgrade.
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Freshman User
Joined: Jan 2004
Posts: 34
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From: Tucson Arizona
If you have a good rental shop in town they probably rent a concrete floor grinder. They are pretty easy to use and can take down as much as you need. I have see 2" bumps on joints fixed with these. They use a diamond impregnated grinding wheel that makes short work of concrete.
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