Help! New Construction heaved & cracked.

Old 05-16-03, 07:28 PM
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Question Help! New Construction heaved & cracked.

The basement for our new home was poured in Nov. The cement contractor put straw on the floor. He told us it should remain covered until it was enclosed. The next day the framers showed up and removed the straw to frame the basement walls. Yes, we now have straw foot prints in the cement. The straw was never replaced and somewhere around mid Jan. The floor heaved and cracked about 4 feet out from the wall, all the way across the room (30ft) and out under the door. The basement was covered, but it's a walkout, the doors and windows had not been installed. Our general contractor has decided to epoxy the floor to level and seal it. We have been very concerned about the crack leaking, also bugs and water entering through the crack under the door. Any thoughts on structural damage, due to the rebar being bent with the heave? It raised about 1/4" over 8 feet and separated about 1/8". The basement is going to remain unfinished for around 5 years. When finished we assume we will tile a large part of it. Any concerns on tile over epoxy?
Old 05-16-03, 09:13 PM
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more info please

im from canada so i dont know your climate
can you explain your climate since nov till now
i might be worried about the footings if it was not a bad winter
can you see anywhere else in the hom ethat may have shifted?
look very hard
epoxy is not very flexible,so if it moves agin ti will crack again
get him to tell you the reason and put it in writing why it happened
at this point i suggest ignorance but please give more info

Old 05-18-03, 06:01 PM
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We live in Northern Indiana. The weather was below freezing during this period. We had a harder winter than normal for this area, but it does generally get below zero for a month or two. The General says, "It cracked because there was water trapped under the floor." There was no electricity for the sump to be able to run. The water that was in the sump pit was frozen solid. As far as we can tell there is no other structural damage, at least not yet.
Old 05-19-03, 10:27 AM
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Dont know just how your paper work for this job reads. But I think that the General should do it over. First you said the basement was a walk out.If so we put drain pipe all around the footing on the outside of the basement wall, Then a drain pipe all around the inside of the basement footing and out from the home there by the walk out. This way there is no water that can stay there under the slab. I dont see why you had to have a sump pump?????? cant see it but it sounds like the footing there by the walk out could be bad also. Id call in code and have them look at it. ED

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