Return to index: [Subject] [Thread] [Date] [Author]

Re: Concrete slab construction

[Subject Prev][Subject Next][Thread Prev][Thread Next] I'll bet he does!  Who wouldn't want someone else to take responsibility for his mistake?  So you've got a slab with around half the bending strength specified, one that's much more likely to crack and settle, one that no one is going to be very happy with down the road IMHO.  Why should you be the fall guy?  It isn't a structural safety issue, is it?  Is there any code requirement that would demand that it be replaced--probably not.  Doesn't it boil down to 1) who pays to correct it if it is corrected, and 2) who benefits if it is or isn't repaired?  Sounds like something for the owner and the contractor to discuss between themselves, with you staying as far away as possible!  Now, if it were a main beam that was built 25% too shallow that would be quite another issue.

Ralph Hueston Kratz, S.E.
Richmond CA USA

In a message dated 4/8/05 11:09:06 AM, domdean(--nospam--at) writes:

I am looking for some suggestions in how to handle the following situation. I received a fax from the architect stating that the owner's representative observed the slab on grade for a pharmacy was 3" thick in some locations. The structural drawings called for a 4" thick slab with WWF reinforcement on compacted structural fill in accordance with the geotechnical report. The slab was formed some time ago (they are beginning interior finish work on the store) and now I find out about this. The general contractor now wants me to sign off on it. My question is "Is there some way to determine whether the 3" slab is acceptable without ripping it out ?

Thanks for any help in trying to resolve this situation.

Domenic DeAngelo