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RE: H2O at Bottom of Forms

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Remove a portion of the form and get the water out, then repair the
form.  Also, require tremies for the concrete pour, max. 4 foot drop
from tremie.

> ----------
> From: 	Mike Brown[SMTP:mike.brown(--nospam--at)cshqa.com]
> Reply To: 	seaoc(--nospam--at)seaoc.org
> Sent: 	Thursday, May 14, 1998 10:15 AM
> To: 	seaoc
> Subject: 	H2O at Bottom of Forms
> 
> I got another problem I'm hoping you all may be able to help me with.
>  
> The form work for a 15 foot high basement wall is in place with the
> reinforcing in place as well.  We got rain (hasn't everyone). 
> Anyways, there is probably standing water at the bottom of the formed
> wall in the key way (as can be seen else where on the site where the
> walls are not formed).  There appears to be no way to remove the water
> without removing one side of the forms.  Besides, what's to prevent
> mother nature from delivering another rain shower once the form is
> removed and then replaced?
>  
> My question, does anyone see a potential problem with pouring the
> concrete?  The concrete will fall the 15 feet to the bottom of the
> form and should displace the water.  I'm hoping that the water will
> flow through the cracks of the form work and to the top.  I am aware
> that there is potential to separate the paste of the concrete at the
> bottom and edges of the concrete and therefore a bond will not occur
> with the aggregate.  However, I believe this will only happen at the
> surface and therefore may be repaired once the forms are stripped.  My
> concern is if this happens in the core of the concrete where I cannot
> see/detect any voids or problems.
>  
> Does anyone have any advice?
>  
> Thanks in advanced.
>  
> Mike Brown, P.E.
> Boise, ID 
>  
>