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What is fiber-reinforced concrete?

Q. What is fiber-reinforced concrete (FRC), and what materials are used for fibers?

 

A. Fiber-reinforced concrete (FRC) is a composite material consisting of conventional concrete or mortar reinforced with discrete fibers. These fibers are typically cut or formed to lengths up to 2.5 in (64 mm) and can be made from various materials, including synthetics, steel, natural fibers, or glass. The addition of fibers improves the concrete's performance in terms of crack resistance, toughness, and durability under various loading conditions.

 

References: ACI 544.1R

Topics in Concrete: Concrete Fundamentals; Fiber Reinforced Concrete