Reinforcement element and method of producing a reinforcement element
AssigneeBBA Blackbull AS
InventorAnders Henrik Bull
Life of this patent
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Abstract
Procedure for fabrication of reinforcement elements for concrete, where an extended, preferably continuously fiber bundle (10), especially of carbon fibers, impregnates (3) by a matrix of a plastic material followed by curing. The fiber bundle (10), including a significant amount of single fibers, is brought after impregnation (3) and prior to curing (17) to cooperate with a particle shaped material (15), preferably sand, as adhere to the fiber bundle surface mainly without coming in between the fibers and fixate to the surface by curing, for creation of a reinforcement element.
Claims18
Method for fabrication of a reinforcement element (19,28) for concrete, comprising:
- a bundling step of bundling on the order of at least 1,000 single, continuous fibers into a fiber bundle (10);
- an impregnation step of passing the thus-formed fiber bundle through a bath containing a liquid plastic-based matrix for impregnation to form a non-cured, wet fiber bundle;
- an adhering step, after said impregnation (3) step and prior to any curing (17), of pulling the non-cured, wet fiber bundle through a reservoir of particle-shaped material in a particle-shaped material bath so that the wet fiber bundle is brought to cooperate with the particle-shaped material (15,25) by pulling up the wet fiber bundle through a hole (13) in a bottom of a container (12) containing the particle-shaped material (15), which particle-shaped material is adhered to the surface of the wet fiber bundle, mainly without coming in between the single fibers, to form a particle adhered fiber bundle with the particle-shaped material adhered on the surface;
- and
- a curing step of curing the particle-shaped material adhered on the surface of the fiber bundle so the particle-shaped material are fixed to the surface by the curing, for creation of a reinforcement element (19,28).
Method for fabrication of a reinforcement element (19,28) for concrete, comprising the sequential steps of:
- pulling at least 1,000 single, continuous fibers from fiber spools and gathering the pulled fibers into a fiber bundle (10);
- impregnating the fiber bundle with a liquid matrix by lowering the fiber bundle in into a bath containing the liquid matrix thereby forming a non-cured, wet fiber bundle impregnated with the matrix;
- pulling the wet fiber bundle upward out of the bath with a first pulling device;
- using a second pulling device, pulling the wet fiber bundle vertically upward through a nozzle (13) located in a bottom of container (12) holding a particle bath, the particle bath comprising a reservoir of particles, so that a cross-section of the wet bundle is shaped by a cross-sectional shape of the nozzle during the pulling up of the wet bundle upward through the nozzle and the particles of the particle bath are adhered to an exterior surface of the wet fiber bundle to form a particle-adhered, cross-section shaped fiber bundle;
- and
- curing the shaped fiber bundle.
Method for fabrication of a reinforcement element (19,28) for concrete, comprising the sequential steps of:
- impregnating a fiber bundle (10) with a liquid matrix to form a matrix-impregnated, wet fiber bundle, the wet fiber bundle comprising at least 1,000 single, continuous fibers impregnated with the matrix;
- giving the wet fiber bundle a required cross-section profile by changing a cross-section of the wet fiber bundle to the required cross-section and applying a particle material to an exterior surface of the wet fiber bundle by
- i) pulling the wet fiber bundle through a nozzle (13) located in a bottom of a container (12) holding a material bath containing the particle material so that a cross section of the nozzle gives the pulled wet fiber bundle the required cross-section profile by passing through the nozzle (13) and adopting the cross-section shape of the nozzle and
- ii) upon entering the material bath, the wet bundle being brought to cooperate with the particle material (15,25) contained within the material bath, the particle material adhering to the exterior surface of the wet fiber bundle to form a particle-adhered shaped fiber bundle;
- and
- curing the particle material adhered on the surface of the shaped fiber bundle.
Dependencies are inferred from the claim text.