Fibre Reinforced Concrete

Fibre Reinforced Concrete

Concrete can be reinforced by weaving fibres into the material producing a material with improved properties.

Strength Durability Hardness Weight
(3 / 5) (4 / 5) (4 / 5) (2 / 5)
Elasticity Flexibility Fabrication Availability
(1 / 5) (1 / 5) (5 / 5) (5 / 5)

This is the concrete baseline we are going to look at a number of different additives that can be used on concrete. The general benefits of having Fibre reinforced concrete are listed below

  • Improved durability of the structure
  • Increased tensile and flexural strengths
  • Higher resistance cracking during life time
  • Improved crack distribution
  • Increased fire retardation

More information at

However each fibre is not always equal and can add different benefits and introduce weaknesses listed below are a couple of examples.

Steel fibres

Advantages

Increased toughness, crack and impact resistance, increased tensile strength, Improved abrasion resistance,

Disadvantages

Increased weight, risk of rust forming lowering durability, higher cost

More

 

steel-fibre

 

 

 

Glass fibres

Advantages

Lightweight (is about 75% lighter), can be poured or sprayed on surfaces, high strength to weight ratio, doesn’t rot or react with UV

Disadvantages

Higher cost, harder to fabricate with, may need outside contractor to mix

More 1, More 2

 

ase13

 

Written By

James Burchill

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