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Re: Minimum steel in slabs on ground

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You are correct that fibers is where much of the research money is to be
found.  But, your response does still short change fibers in concrete.
While fibers in concrete may not be the greatest thing since sliced bread
that many suggest, but fiber concrete does have it uses.


Adrian, MI

On Wed, 20 Oct 2004 GSKWY(--nospam--at) wrote:

> In a message dated 10/20/2004 10:39:08 PM Eastern Daylight Time,
> haynewp(--nospam--at) writes:
> I have not used fiber reinforcement before.  However I am curious, if fiber
> reinforced slabs are such crap, why are so many professors so excited about
> fiber reinforcing?
> That is an excellent question.  And an even better question is why no one
> else has asked it yet.
> The professors are excited because by being excited,  they will get research
> funding.
> If you look at the ACI Structural Journal,  between 60 and 82% of the
> articles in any issue will  be some new  aspect of fibers or fiber reinforced
> plastic.  I.e. the stuff you dump in the concrete or the stuff you glue on the
> concrete.
> Just the title alone lets you know you are in for excitement:
> The Effects of Fibers in Short Beams loaded in Shear on Tuesdays
> Designing Fiber-Reinforced Slabs on Ground with Fracture Mechanics and a
> Kitchenaid Blender
> Not to mention those that make multiple uses of the words "high performance"
> and "innovative" in their title:
> Innovative High Performance Uses of Innovative Fibers in High-Performance
> Concrete
> If you want more excitement than you can stand, attend the ACI 544 (Fiber
> Reinforced Concrete) Committee meeting.  Your professor will probably be there.
> There tends to be a little bit of a disconnect with the fiber sales force,
> since those tend to be construction management majors and shoe salesmen  (whose
> understanding of engineering principles is exactly the same)  but that just
> adds to the fun.
> Gail Kelley

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