Reinforcing structural rebar and method of making the same

Details Reinforcing structural rebar and method of making the same Reinforcing structural rebar and method of making the same

1997-08-27

1998-12-22

Dixon, Merrick

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264134, 264174, 26421114, 26421118, 26421122, 428375, B29C 4700

Patent

active

058514686

ABSTRACT:
A structural rebar of the present invention includes: an inner core formed by pultruding reinforcing fibers of a first reinforcing material through a bath or injection system of a first resin material; and an outer cladding comprising an inner cladding layer and an outer cladding layer. The inner core contains at least about 40 percent by weight reinforcing fibers of the first reinforcing material. The inner cladding layer comprises a second resin material reinforced with reinforcing fibers of a second reinforcing material. The fibers of the second reinforcing material are preferably unidirectional and oriented substantially parallel to the fibers of the first reinforcing material. The outer cladding layer comprises a corrosion-resistant third resin material reinforced with a third reinforcing material. Rebar of this configuration can have sufficient strength, rigidity, and corrosion resistance to be suitable for use in cementitious structural members.

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