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Old 10-13-2010, 09:37 AM   #1
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(Pics posted) Crack in concrete 2 days after pouring?


Hi guys and gals,

I am in the process of having my house built and they poured the driveway 2 days ago. I noticed today that there is about an 8 inch crack already on 1 of the corners. Is this normal? I know concrete will crack over time... but after 2 days??? Thanks to any experts that can chime in..

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Last edited by danreg99; 10-13-2010 at 10:17 PM. Reason: Pictures posted
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Old 10-13-2010, 09:40 AM   #2
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Post a picture, that would help.

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Old 10-13-2010, 10:00 AM   #3
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Does it have control joints placed in it already?

Did they pull the forms off the same day?

Pics & a better explanation would help indeed.
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Old 10-13-2010, 10:05 AM   #4
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I will post pics today.
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Old 10-13-2010, 01:16 PM   #5
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It shouldn't crack after 2 days, but how did it crack? Weight of something that didn't belong would be high on the list.
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Old 10-13-2010, 01:58 PM   #6
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Based on the time and location (corner), I would first look at rough stripping tactics on the forms. - Unless it started at an inside corner.

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Old 10-13-2010, 07:53 PM   #7
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I have attached pics. Please look at and tell me what you think? Should I bring it up to the contractor? How would they fix it? Thanks guys, you have been lifesavers in the past!
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Crack in concrete 2 days after pouring?-img_0052.jpg   Crack in concrete 2 days after pouring?-img_0053.jpg  
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Old 10-13-2010, 08:10 PM   #8
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I'm no expert, but it really looks like they did not dig deep enough at the corners. Still I can't see why it would crack right away without at least going through the winter.
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Old 10-13-2010, 08:36 PM   #9
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Wow that sux. Looks like something heavy got put on it. I bet they missed the rebar in that area.
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Old 10-13-2010, 08:38 PM   #10
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Quote:
Originally Posted by wnabcptrNH View Post
Wow that sux. Looks like something heavy got put on it. I bet they missed the rebar in that area.

What do you think I should do about it?
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Old 10-13-2010, 09:15 PM   #11
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Quote:
Originally Posted by danreg99 View Post
What do you think I should do about it?
make the installer rip it out and repour it.
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Old 10-13-2010, 09:38 PM   #12
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I bet they will laugh if I told them to do that.
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Old 10-13-2010, 09:55 PM   #13
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They did not use any isolation joint material against the old concrete filler on the brick ledge near the house: http://www.concretenetwork.com/concr...on-joints.html
Was this poured on a hot day? Those appear to be water marks.... They should have pulled those old concrete pads......

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Last edited by Gary in WA; 10-13-2010 at 09:58 PM.
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Old 10-13-2010, 10:02 PM   #14
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No, the hottest that it has gotten is about 72 this week. What will happen to the rest of the slab do you think? Is there anyway they can fix this without ripping out the slab?

Last edited by danreg99; 10-13-2010 at 10:04 PM.
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Old 10-14-2010, 07:10 AM   #15
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That is a mechanical fracture, not a shrinkage crack.

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