Polypropylene Fibers
Polypropylene
Fibers
With
the addition of polypropylene fiber in the mixture of concrete it enhances the
toughness and tensile strength. When concrete is by itself it has the tendency
to be very brittle especially in the area of a tensile test which is where the
fibers come into play to build in where regular concrete lags, which can
increase the compressive strength to a dramatic level.
In
coastal areas there is a high concentration of chloride ions from the salty
air, this creates corrosion with the steel product which produces rust as a
result. This rust has the capacity to expand four to ten times larger than the
iron causing a large expansion which makes cracks and voids. Polypropylene
fibers now are underway in replacing the reinforcing steel in concrete, which
has a much greater strength and can reach up to 20k psi.
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