Correct option is A
Fibers used in FRC (Fiber-Reinforced Concrete) are referred to as secondary reinforcements. They are added to concrete to improve its structural performance by enhancing its tensile strength, reducing cracking, and improving ductility.
Detailed Explanation:
1. Secondary Reinforcements:
Fibers in FRC provide additional strength to concrete by resisting cracking and reducing shrinkage stresses.
These fibers do not replace the primary reinforcement (steel bars or mesh) but complement it for improved durability and performance.
Slime Reinforcements: Not a recognized term in concrete technology.
Slender Reinforcements: Refers to thin or small reinforcements, unrelated to fibers in FRC.
Super Reinforcements: A general term, not specifically associated with FRC.
