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RE: SLAB - Control Joints in Concrete Sl

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Just thought that I would throw my two cents in on this.  I never allow
welded wire fabric for slab on grade reinforcing (I don't work in the
residential market).  I always specify rebar.  I do not use Fibermesh for
the following reasons:  1) I have had some long discussions with concrete
finishers and they hate it.  It tends to "ball" up on the surface and makes
finishing very difficult, 2) it leaves a "stringy" or "hairy" finish.  Yes,
it can be removed with a blow torch, but it is a pain, and 3) if you a using
colored concrete, it does not retain the color.  I much prefer nylon fibers
of which there are several suppliers.  I specify this nylon secondary
reinforcement for water retaining structures and concrete surfaces that have
wheel loads.  It actually does increase the toughness and wear resistance of
concrete and help mitigate secondary cracks for water retaining structures.
I have had good success with it when used in conjunction with regular
reinforcing.  The other thing about Fibermesh is the experience that is
described below with their sales representatives.  They tend to be a bit
impolite to put it mildly.    

Kent Estes, S.E.

From:  Roger Turk[SMTP:73527.1356(--nospam--at)]
Sent:  Sunday, April 26, 1998 1:38 PM
To:  seaoc(--nospam--at)
Subject:  RE: SLAB - Control Joints in Concrete Sl

I had a Fibermesh salesman storm out of the office in a huff when he asked
I would specify Fibermesh in place of reinforcing and I answered "No."

A. Roger Turk, P.E.(Structural)
Tucson, Arizona

Dennis Wish wrote:

. > If you review the product literature, I believe you will find that the 
. > company does not recommend the use of Fibermesh as a replacement for
. > reinforcement or even WWF to control temperature cracking.