MULTI-LEG FIBER REINFORCED CONCRETE

• US 20200131771A1
• Filed: 12/20/2019
• Published: 04/30/2020
• Est. Priority Date: 10/30/2018
• Status: Abandoned Application

• Current Assignee: King SAUD University
• Original Assignee: King SAUD University
• Inventors: ALMUSALLAM, TAREK H., ABBAS, HUSAIN, AL-SALLOUM, YOUSEF A., ABADEL, AREF A.
• Application Number:
  US16/724,123
• Publication Number:
  US 20200131771A1
• Time in Patent Office: Days
• CPC Class Codes: C04B 14/06 Quartz; Sand
• CPC Class Codes: C04B 14/48 Metal
• CPC Class Codes: C04B 20/0008 Materials specified by a shape not covered by C04B20/0016 - C04B20/0056, e.g. nanotubes
• CPC Class Codes: C04B 20/0048 Fibrous materials
• CPC Class Codes: C04B 20/0068 Composite fibres, e.g. fibres with a core and sheath of different material
• CPC Class Codes: C04B 20/0076 characterised by the grain distribution
• CPC Class Codes: C04B 2103/32 Superplasticisers
• CPC Class Codes: C04B 2111/34 Non-shrinking or non-cracking materials
• CPC Class Codes: C04B 28/04 Portland cements
• CPC Class Codes: E04B 2103/02 of ceramics, concrete or other stone-like material
• CPC Class Codes: E04C 5/012 Discrete reinforcing elements, e.g. fibres
• CPC Class Codes: E04C 5/073 Discrete reinforcing elements, e.g. fibres

Abstract

The multi-leg fiber reinforced concrete is concrete in which fibers have been embedded to prevent the concrete from being fractured due to cracks developing therein. Each fiber has multiple legs, defining two and three dimensional structures. At least one fiber is embedded in a volume of concrete, where the at least one fiber has at least first and second legs respectively extending along first and second directions. The first and second directions are angularly oriented with respect to one another between 45° and 135°, with each of the first and second legs having a free end and a fixed end. Each free end has a substantially Z-shaped contour. The fixed ends of the first and second legs may be joined together to define a two-dimensional fiber structure. The at least one fiber may be partially coated with a polymeric material, such as polypropylene.

Claims

1. A multi-leg fiber reinforced concrete, comprising:

a volume of concrete; and

at least one fiber embedded in the volume of concrete, the at least one fiber having first and second legs, each of the legs having a fixed end and a free end, the fixed ends of the first and second legs being directly joined together defining a vertex of an angle measuring between 45° and

135°

, each of the free ends terminating in a hook having a 45°

bend.

5. The multi-leg fiber reinforced concrete as recited in claim 1, wherein the at least one fiber comprises braided fiber.

2-4. -4. (canceled)

6-15. -15. (canceled)