Friday, May 18, 2007

Re: Placing concrete walls on footings before 7 days

Did you have 7 days listed in your concrete specifications? Or just a reference to ACI 301, etc.?
 
 
Will Haynes, PE

 
On 5/17/07, Jim Wilson <wilsonengineers@yahoo.com> wrote:
I have been asked about the need to wait 7 days before placing a concrete wall on a new footing.  Is this an enforcable requirement referenced by the code?  Or this only a guide and a "proceed at your own risk" situation if placing the wall before receiving 7-day breaks on the footing?
And is there a similar requirement that forms cannot be erected on a footing until 3 days after footing placement?
 
Jim Wilson, PE
Stroudsburg, PA