Composite fiber for the reinforcement of concrete

Patent metadata

Field	Value
Publication number	US-10017419-B2
Application number	US-201715602522-A
Country	US
Kind code	B2
Filing date	May 23, 2017
Priority date	Sep 4, 2013
Publication date	Jul 10, 2018
Grant date	Jul 10, 2018

Abstract

Composite fibers and methods of manufacturing composite fibers for the reinforcement of concrete are provided. The composite fibers include fibers and a polymeric coating. The composite fibers have a length of about 10 mm to about 80 mm and an equivalent diameter from about 0.3 mm to about 2 mm. A method for reinforcing concrete using the composite fibers is further provided.

First claim

The invention claimed is:

1. A method of reinforcing concrete, said method comprising:
preparing a viscous polymeric coating composition;
applying the viscous polymeric coating composition to a plurality of fibers to form a plurality of coated elements, each of said coated elements including one or more of said fibers;
exposing the coated elements to radiation which cures the viscous polymeric coating composition to form a plurality of composite fibers;
preparing a concrete; and
mixing the composite fibers in said concrete,
wherein said composite fibers are included in the concrete in an amount from 2 kg/m 3 to 75 kg/m 3 of said concrete.

2. The method of claim 1 , wherein said radiation is ultraviolet radiation.

3. The method of claim 1 , wherein said composite fibers have an equivalent diameter of 0.3 mm to 2 mm.

4. The method of claim 1 , wherein the viscous polymeric coating composition comprises at least one of a polyurethane, a polyester, and a vinylester.

5. The method of claim 1 , wherein the fibers comprise glass fiber.

6. The method of claim 1 , wherein the viscous polymeric coating composition is from 5 wt % to 50 wt % of the composite fiber.

7. The method of claim 1 , wherein the viscous polymeric coating composition is from 10 wt % to 30 wt % of the composite fiber.

8. The method of claim 1 , wherein said composite fibers are included in the concrete in an amount from 5 kg/m 3 to 25 kg/m 3 of said concrete.

9. The method of claim 1 , wherein said composite fibers have a length of 10 mm to 80 mm and an equivalent diameter from 0.3 mm to 2 mm.

Assignees

• Ocv Intellectual Capital Llc

Inventors

• Tardy Gerard
• Blandin David
• Gil Daniel
• Lorre Benoit
• Laurence Olivier
• Barragan Bryan

Classifications

• C04B28/02 Primary

  containing hydraulic cements other than calcium sulfates · CPC title

• C04B20/1014 Primary

  Coating or impregnating materials characterised by the shape, e.g. fibrous materials · CPC title

• C04B18/022

  agglomerated by an organic binder · CPC title

• C04B40/0003

  making use of electric or wave energy or particle radiation · CPC title

• B05D3/065

  After-treatment · CPC title