Plural-component, composite-material highway dowel bar structure and fabrication methodology
First Claim
1. A plural-component, composite-material highway dowel bar comprisingan elongate, cylindrical, high-shear-strength core, andan elongate, fibre-reinforced plastic-resin jacket fully surrounding and protectively covering the entirety of said core, said jacket including an elongate, cylindrically tubular sleeve which is fibre-reinforced in plural, plastic-resin-embedded, fibre-differentiated, circumferentially-adjacent circumferential layers of fibres.
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Abstract
A plural-component, composite-material highway dowel bar and an associated fabrication methodology. The dowel bar includes an elongate, solid-cylindrical, high-shear-strength core bar, preferably steel, and an elongate, fiber-reinforced plastic-resin jacket, including an elongate, pultrusion-formed, tubular sleeve, and sleeve-received, opposite-end, end-well sleeve end plugs, fully surrounding and protectively covering the core bar.
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Citations
10 Claims
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1. A plural-component, composite-material highway dowel bar comprising
an elongate, cylindrical, high-shear-strength core, and an elongate, fibre-reinforced plastic-resin jacket fully surrounding and protectively covering the entirety of said core, said jacket including an elongate, cylindrically tubular sleeve which is fibre-reinforced in plural, plastic-resin-embedded, fibre-differentiated, circumferentially-adjacent circumferential layers of fibres.
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10. A plural-component, composite-material highway dowel bar comprising
an elongate, cylindrical, high-shear-strength core, and an elongate, fibre-reinforced plastic-resin jacket fully surrounding and protectively covering the entirety of said core, said jacket including (a) an elongate, cylindrically tubular sleeve which is longer than said core, configured with a hollow, cylindrical inside which bondedly receives said core in a manner defining opposite-end, cylindrical end wells that are disposed within the sleeve beyond opposite ends of the received core, and (b) a pair of spaced, elongate, fibre-reinforced, cylindrical, sleeve end plugs bondedly affixed, one each, complementarily within said end wells.
Specification