My fiber reinforced floor has a few cracks, but not too bad given its
size. My biggest gripe came when I was acid etching for floor paint --
all these little wads of fuzz kept coming off when I pressure washed off
a coat of acid. Took me a while before I realized what it was. The
little ends of the fiber ended up poking up like fine razor stubble.
(Apparently the acid ate the concrete faster than it ate the fiber.)
Now I have a nice non-skid painted floor and I didn't even have to add
any sand to the paint to make it non-skid.
-----Original Message-----
>
> Fiber reinforcing is just what it's name implies. Looks like
> chopped fiberglass matting, also available in bags of what can best
> be compared to chopped paper clips. Their purpose is to provide
> secondary reinforcement. While we all know the slab will crack, the
> fibers essentially turn the big cracks into billions of microscopic
> ones, or yield what appears to be a crack free slab. Generally
> around $10/12 a yard, put in the concrete by the ready mix producer,
> pissed and moaned about by professional finishers because it makes
> the final troweling tougher, but worth every penny.
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