Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1995-09-14
1997-12-30
Dixon, Merrick
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
428293, 428294, 428360, 428364, 428387, 428391, 428408, D02G 300
Patent
active
057028168
ABSTRACT:
A structural rebar of the present invention comprises: 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.
REFERENCES:
patent: 4876143 (1989-10-01), Sugita et al.
patent: 5593536 (1997-01-01), Kaiser
Dixon Merrick
Marshall Industries Composites, Inc.
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