Plastic fibers for improved concrete

Details Plastic fibers for improved concrete Plastic fibers for improved concrete

C - Chemistry, Metallurgy

04

B

C04B 16/06 (2006.01) C04B 20/10 (2006.01) D01F 8/06 (2006.01) E04C 5/07 (2006.01)

Patent

CA 2412599

A concrete article comprised of concrete having therein a reinforcing fiber, where at least 50 percent of the reinforcing fibers are frayed only at an end or ends of the reinforcing fibers, may be made by mixing concrete, water and a reinforcing fiber for a sufficient time to fray the ends of at least 50 percent of the fibers and curing the mixture to form the concrete article. The fiber may be a reinforcing fiber comprised of at least two filaments bonded together and the filaments being comprised of a polymeric core and a polymeric sheath comprised of a fusing-fraying polymer, such that the reinforcing fiber, when mixed with inorganic particulates, frays predominately only at an end or ends of the fiber.

Article en béton composé de béton et de fibres de renforcement, dont au moins 50 % est effiloché à l'extrémité. On peut fabriquer cet article par mélange de béton, d'eau et de fibres de renforcement pendant une durée suffisante pour effilocher les extrémités des fibres d'au moins 50 % et durcissement du mélange afin de produire l'article en béton. Cette fibre peut consister en une fibre de renforcement comprenant au moins deux filaments adhérant l'un à l'autre et composés d'une âme polymère et d'une gaine polymère comprenant un polymère pouvant s'effilocher par frottement, de sorte que la fibre de renforcement, quand elle est mélangée à des particules inorganiques, s'effiloche surtout à une ou aux deux extrémités.

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