Use of fiber reinforced concrete for concrete pavement slab replacement : [summary].
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2014-03-01
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Abstract:Replacing cracked concrete in roadways requires
lanes to be closed and traff c disrupted. One way
to reduce road closure time is to reduce concrete
curing time. To accelerate curing time, pavement
engineers mix a very low water-cement ratio with
a large amount of Portland cement. While the
mixture dries quickly, the replacement slabs are
susceptible to early-age drying shrinkage, which
can potentially cause the replacement slabs to
crack. One way to lessen the risk of cracking and
to strengthen concrete is to add f bers to the
concrete mix. However, except for bridge deck
applications, there is no standard specif cation for
the use of f ber reinforced concrete (FRC) in the
construction of concrete roadways.
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