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What are the primary benefits of using fiber-reinforced concrete compared to traditionally reinforced concrete?

Q. What are the primary benefits of using fiber-reinforced concrete compared to traditionally reinforced concrete?

 

A. Fiber-reinforced concrete (FRC) offers several advantages over traditionally reinforced concrete, making it a preferred choice for various construction applications. One key benefit of FRC is its enhanced post-crack tensile strength, achieved through three-dimensional reinforcement that bridges cracks on all planes. In contrast, traditional reinforcement provides post-crack tensile strength in a single plane, intercepting only cracks that pass through that plane.

 

FRC also demonstrates improved durability and resistance to environmental factors. The three-dimensional reinforcement reduces crack formation, leading to longer service life for structures. FRC effectively controls shrinkage and thermal stress-induced cracks, which is particularly advantageous in applications like slabs-on-ground. Additionally, its versatility in fabrication methods makes FRC an economical and practical construction material. Structures made with FRC exhibit enhanced mechanical properties, increased longevity, and reduced maintenance compared to those constructed with traditional reinforcement.

 

References: ACI 544.1R

Topics in Concrete: Concrete Fundamentals, Fiber Reinforced Concrete