Can I cut this off a slab?

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  #1  
Old 08-22-15, 11:38 AM
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Can I cut this off a slab?

Please see attached pic. I would like to add a slab for a patio, adjacent to my existing house foundation slab. As you can see in the attached pic, there's a "bump" on the side of the existing slab/footing. This is probably just a result of the way they made the form for the slab/foundation, and the concrete slobbered out bit. In order to add the new slab next to the old slab with the proper isolation joint and spot footing, I would have to cut the bump off. Is there any problem with doing this?

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  #2  
Old 08-22-15, 02:31 PM
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Should not be an issue.
I'd use a 4-1/2" right angle grinder with a diamond blade.
 
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Old 08-22-15, 05:50 PM
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Pics

Here are some pics of the place I'm referring to, on the existing slab.
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Old 08-22-15, 06:06 PM
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Thanks Joe. Check out my pics. Maybe a better question would be, how do you pour any kind of slab adjacent to this thing?
 
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Old 08-24-15, 04:56 AM
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did you post those pics in the other forum ? 1st time i recall seeing 'em - yep, 4" grinder & dri-diiamond blade,,, isolation jnt mtl between old & new,,, nice to know your 'where' too
 
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Old 06-06-16, 03:14 PM
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OK, I'm reviving this idea. This means would involve putting a spot footing adjacent to the one in the pic. It would be about 12"x12", 16" deep, and should be the same depth (or slightly less deep) as the existing footing. Are there any special considerations when doing this. I already know not to disturb the soil near the bottom of the existing footing. Anything else?
 
  #7  
Old 06-06-16, 10:11 PM
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Can anyone tell me what is the thickness of the concrete expansion/isolation material that goes between concrete slabs?
 
 

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