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  #1  
Old 2009-07-30, 01:16 PM
sgsm1617 sgsm1617 is offline
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Default Foundation question

In our new home I notice the basement concrete foundation appears to be somewhat curved. Not alot but some areas are not exactly straight. I will try and post a picture. The wall itself is straight but the cement is a little curved in some areas. Sounds wierd but I don't know how else to explain it.

I spoke to the builder and they told me it's due to old forms being used. I was concerned about the structural strength and the builder assured me the structure was not affected (I wouldn't anticipate them saying differently)

My question to other "experts" - Have you come across this and is the builder correct in saying there is no structural concerns?

Thanks!
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Old 2009-07-30, 06:28 PM
oakvillehomeowner oakvillehomeowner is offline
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the forms do bend - it's not an issue. i had one of mine blow out at the bottom (tie let loose) and one of my basement walls was an extra 5" thick at the bottom - it doesn't hurt as long as the concrete doesn't have voids in it.
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Old 2009-07-31, 08:10 AM
sgsm1617 sgsm1617 is offline
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Thanks for the feedback!

Can you clarify what "voids" are? Sorry and thanks...
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Old 2009-07-31, 03:29 PM
oakvillehomeowner oakvillehomeowner is offline
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"voids" are basically air pockets in the concrete - if the mix is too dry or not vibrated you can find air pockets, and if the forms shift after the concrete has started to cure/harden, you can get air pockets. the air pockets just weaken the concrete. i wouldn't worry about a void any small than a quarter.
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