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[SEAOC] FRP Bar[Subject Prev][Subject Next][Thread Prev][Thread Next]
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- Subject: [SEAOC] FRP Bar
- From: "Hunt, Tom" <tom.hunt(--nospam--at)fluordaniel.com>
- Date: Wed, 07 Aug 1996 15:37:00 -0700
FRP stands for Fiber(glass) Reinforced Plastic as in FRP plastic grating, structural shapes, and piping materials. They are quite expensive compared to steel and normally only used in aggressive chemical environments or electrical conductivity concerns (electro plating shops!). Several manufactures are experimenting with FRP rebar which would be an alternative in concrete structures exposed to deicing salts or marine facilities. Two draw backs are that although FRB rebar can achieve very high strength (100 ksi or better) it is difficult to formulate a plastic rebar to have a smooth and long transition between the yield strength and tensile strength which is the essence of reinforced concrete design. The other draw back is that these bars are very stiff and can not be bent like a steel bar. Special pre-made bars are required for hooks and bends. Thomas Hunt ...
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