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Re: Exposed aggregate in tilt panels

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I feel this is a case of over vibration rather than high slump. 
Concreting of high slump generally is required where vibration is either 
not possible or is suseptible.

The quoted case appears to be HIGH SLUMP with OVER VIBRATION.

Regards


RP Mehrotra

----- Original Message -----
From: RDAHLMANN(--nospam--at)aol.com
Date: Tuesday, May 1, 2001 10:17 am
Subject: Exposed aggregate in tilt panels

> Has anyone encountered a problems with sand blasted finish on tilt 
> panels? I
> have a job using 3/8" diameter aggregate with a sand blasted 
> finish. The
> contractor used a super-plastisized mix with an extremely high 
> slump. Upon
> sand blasting these panels, the aggregate is too far below the 
> surface for
> the owners liking, creating a un-uniform finish. I can except that 
> the high
> slump could have contributed to the inconsistencies, but could the 
> vibrationof the panels also contribute to this? If so, what 
> alternate would be
> available to vibrating the concrete on future jobs?
> 
> Thanks for your help
> Richard Dahlmann, P.E.
> 
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