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Old 09-04-2011, 07:53 PM   #1
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Concrete Pad Flacking , Cracking?


I joined to try to get some in site on a problem I am have with a pad that was poured in September of last year. Can one of you guys look at the pics and let me know what happened. Thanks








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Old 09-04-2011, 09:30 PM   #2
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Concrete Pad Flacking , Cracking?


We call those popouts. It's caused by several factors together or individually. Too much water in the mix or possibly the slab was rained on during the finishing stage. It can also be from drying too quick. Around here if the temp at pour is above 90F, the pour does not happen because by the time it's poured and the finishers are able to get on the slab, it far too hot and you'll get these popouts. Most of our slabs here are poured before daylight so this isn't an issue. Our pours usually start at 3 AM and no, you don't want to live in the neighborhood- it gets noisy at 3 AM.

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Old 09-04-2011, 09:34 PM   #3
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Concrete Pad Flacking , Cracking?


This pour was in Knoxville , TN in September of last year. Thanks for the reply. Would not sealing the concrete and using rocksalt during the winter in freezing conditions cause this also? Thanks again.
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Old 09-05-2011, 07:42 AM   #4
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Concrete Pad Flacking , Cracking?


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Originally Posted by ANDY93Z View Post
This pour was in Knoxville , TN in September of last year. Thanks for the reply. Would not sealing the concrete and using rocksalt during the winter in freezing conditions cause this also? Thanks again.
Using rocksalt would cause the issue. So would over floating the surface.
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