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Re: Slab on grade (on asphalt)

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This has been done a lot, especially in Iowa on highways over at least 20
yrs.. It was used on a street in Santa Monica, CA. about 4 yrs. ago.
There is tech. literature available from PCA and Concrete Paving folks.
It is called "White Topping".

Stan Scholl, P.E.
Laguna Beach, CA

On Mon, 16 Sep 2002 10:16:37 -0700 "Reza Dashti Asl"
<rezadashti(--nospam--at)hotmail.com> writes:
> 
> Hi,
> There is a heavy-load storage area where owner wants to pour a 
> concrete slab 
> on top of the existing asphalt. The final grade is 10"-12" above the 
> 
> existing and concrete slab thickness will be 8". I'm not sure how 
> the 
> asphalt will perform as the subbase. I'm also concerned about the 
> locations 
> where there is only 2" under the concrete slab. All comments will be 
> 
> appreciated.
> 
> Thanks,
> Reza Dashti P.Eng.
> Vancouver,BC
> 
> 
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