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Re: High Fly-Ash in PT slab

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Check with some of the bigger state DOTs. Many of them have done research in this area, and some real-world installations. 

I'm sure they'll have info on their websites.

William L. Polhemus, Jr. P.E.
Via iPhone 3G

On Aug 7, 2009, at 11:47 AM, "Joe Goldbronn" <jgoldbronn(--nospam--at)barrish.com> wrote:

I have a client that is trying to maximize their “Build-it-Green” points by using high fly-ash in the concrete mix.  They are requesting between 20%-30% fly-ash.  Per the soils engineer we also need to use a slab-on-grade post-tensioned slab.  I have never tried to use high fly-ash on a post-tensioned slab before and am having a hard time finding anyone or any reference that has done so.  Does anyone have any experience with this or know of any good references?   

 

Joe Goldbronn