Fibre Reinforced Concrete

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

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

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

Steel fibres


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


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







Glass fibres


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


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

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