Doug:
Fiber reinforced concrete is not, in my professional opinion, going to provide
any advantage in real terms for its additional cost for a tower foundation. The
biggest benefit it would provide in foundation usage is improved shrinkage
crack control.
It does provide some benefit when used in slabs and floors. It really does not
improve the load resistance of a tower type foundation whether a spread
footing, drilled pier or other.
Regards
Lonberg Design Group, Ltd.
Hank Lonberg, P.E.,S.E. / KR7X
President
-------------- Original message --------------
> I'm about to order concrete for a tower base. The concrete company offers
> fiber reinforcement mixed into the concrete for about $10 per cubic yard.
> I've researched concrete fiber and found nothing on Tower Pro and only one
> comment here by K7LXC saying it wasn't needed.
>
> It appears that the fiber adds 5-10% additional compressive strength and
> about results in a 50% reduction in cracking. (it is touted as a replacement
> for embedded steel mesh in slabs.)
>
> I have been unable to find any literature indicating that it is
> inappropriate for tower bases or even any negative consequences of its use
> for such. For less than a 10% increase in the cost of the concrete, it seems
> like it may be worth it- even if only for a belt and suspenders approach.
>
> Does anyone have any experience with concrete fiber use in tower
> foundations?
>
> Tnx,
> Doug
> K4DDR
>
>
>
> _______________________________________________
>
> See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
> Weather
> Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
> and ask for Sherman, W2FLA.
>
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_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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