1. Fiber Reinforced Concrete (FRC)

2. Feisal salah Introduction
Is a concrete mix that contains short discrete fibers, uniformly distributed and randomly oriented
Aims to produce stronger and tougher concrete
Can add to the tensile loading capacity of the composite system
4 types of FRC:
Steel Fibers (SFRC)
Glass Fibers (GFRC)
Synthetic Fibers (SFRC)
Natural Fibers (NFRC)

3. Advantages Ease of installation
Concrete placement and crack control in one operation
No requirement for crack control steel mesh
Increased cohesion of the mix
Reduced bleeding of water to the surface

4. Disadvantages Greater reduction of workability
High cost of the materials

5. Steel Fiber Reinforce Concrete
Increases strain capacity and impact resistance
Improved resistance to impact and greater ductility of failure in compression, flexure and torsion
High tensile strength (0.5 – 2 GPa)
Modulus of elasticity (200 GPa)
Ductile/plastic stress-strain characteristic
Low creep

11. Glass Fiber Reinforced Concrete
Mixed by Portland cement, fine aggregates, water and alkali-resistant glass fibers
High tensile strength (2 – 4 GPa)
Elastic modulus (70 – 80 GPa)
Brittle stress-strain characteristics (2.5 – 4.8% elongation at break)
Low creep at room temperature

12. Synthetic Fiber Reinforced Concrete
Man-made fibers from petrochemical and textile industries
Low-volume percentage (0.1 to 0.3% by volume)
high-volume percentage (0.4 to 0.8% by volume)

13. Selected Synthetic Fiber Types and Properties

14. Types of Synthetic Fiber Reinforced Concrete
Acrylic
Aramid
Carbon
Nylon
Polyester
Polyethylene
Polypropylene

15. Natural Fiber Reinforced Concrete
Obtained at low cost and low levels of energy using local manpower and technology
Unprocessed natural fibers
- made with unprocessed natural fibers such as coconut coir, sisal, sugarcane bagasse, bamboo, jute, wood and vegetable
Processed natural fibers
- Wood cellulose is the most frequently

16. Typical Properties of Natural Fibers

17. Application of FRC Applications for new construction
Bridge
Repair and rehabilitation applications
Beam and Slab
Architectural applications
Interior Design

19. Use of Carbon FRC as reinforcement of a concrete slab

20. Comparison Fiber Reinforced Concrete (FRC) Normal Reinforce Concrete
Higher durability
Lower durability
Protect steel from corrosion
Steel potential to corrosion
Lighter (materials)
Heavier (materials)
More Expensive
Economical
With the same of volume, the strength is greater
With the same of volume, the strength is less.
higher workability
Less workability as compare to FRP

21. Conclusion FRC - very costly - normally apply on bridge constructions
- the ability to sustain a load without
excessive deformation or failure
- used as external reinforcement in the
rehabilitation of reinforced concrete (RC)
beams and slabs
- architects used it as siding/cladding,
roofing, flooring and partitions