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Old 03-04-2011, 08:14 PM   #1
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Leveling a concrete slab floor


The floor is out of level fro 0-3 inches over an area of about 800 sq ft. The cost of self leveling coumpounds is astronomical over $15k we would like to use mortar and level it section at a time to save cost. We have good manpower just not lots of money. What are your recomendations?


Last edited by RICHARD HARO; 03-04-2011 at 08:17 PM.
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Old 03-05-2011, 11:52 AM   #2
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Leveling a concrete slab floor


There are few options in this situation. Because you have a 3" difference any self leveling compound is cost prohibitive. That leaves removing the existing slab and repouring or pouring on top of the existing slab.

Repouring is better, but more expensive.

Pouring on top has many pitfalls too.

Tell us more about the characteristics of the site.

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Old 03-05-2011, 01:56 PM   #3
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Leveling a concrete slab floor


Did you know you can add pea gravel to Self Levelling Compounds thereby increasing the cubic foot volume per bag and reducing the cost by almost half?

You could also order a mix of sand and Portland from a local Redi Mix plant (it is also called grout but it isn't like ceramic tile grout.) Use it for filler to raise the lower side in range with the higher side, then finish it off with Self Levelling Compound.
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Old 03-05-2011, 09:30 PM   #4
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Leveling a concrete slab floor


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Originally Posted by RICHARD HARO View Post
The floor is out of level fro 0-3 inches over an area of about 800 sq ft. The cost of self leveling coumpounds is astronomical over $15k we would like to use mortar and level it section at a time to save cost. We have good manpower just not lots of money. What are your recomendations?
get an estimate for jacking the floor up with concrete might be cheaper than mixing and filling in.where the floor pitches to 0 you'll always have problems with flaking.Don't know the purpose of making it level but this would be the solution if you plan on tiling.

Last edited by Stainless steel; 03-05-2011 at 09:33 PM.
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