Need a book? Engineering books recommendations...

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

RE: Slab on grade

[Subject Prev][Subject Next][Thread Prev][Thread Next]
Scope.  ACI 318  1.1.6 

>>> "Jason Christensen" <jason(--nospam--at)> 11/7/2008 12:50 PM >>>

Where is this exclusion?  I would like to show the BO.




From: Jerry Coombs [mailto:JCoombs(--nospam--at)]
Sent: Friday, November 07, 2008 11:45 AM
To: seaint(--nospam--at)
Subject: Re: Slab on grade


3" clear is not req'd.  ACI 318 specifically excludes non-structural, SOGs.

>>> "Jason Christensen" <jason(--nospam--at)> 11/7/2008 12:29 PM >>>

For our typical 4” slab on grade (non-structural slab) we call out #4 at 24”o.c. each way.


We just got by a building official plan review for not meeting the 3” min. clearance for concrete cast next to earth.  For a non-structural slab I have never worried about the bottom clearance, maybe I should be?


Any thoughts?  Is there a exception for non-structural concrete not needing the 3” clearance?