Ioannis Balafas
Greek Army
Chris Burgoyne
Department of Engineering, University of Cambridge, UK
GFRP will always suffer from its
low stiffness and it is very unlikely to find a serious market where the
deflections of the structure matter. Structures under any significant load
would crack, so to keep the deflections to acceptable limits the structure
would have to be much deeper than normal, or the structure over-designed to an
unreasonable extent. There are, however, applications, where corrosion risk is
very high but deflections would not be a problem, such as retaining structures
or fenders in the splash zone. Structures that have to resist occasional loads,
such as balustrades, or wind loads (such as sign gantries) might also be
suitable, but it is doubtful if the extensive cracking that will occur in
GFRP-reinforced concrete will make it robust enough for structures carrying
heavy wheel loads, such as bridge decks.
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