What are the types and benefits of fiber-reinforced concrete (FRC)?

FRC contains discrete fibers randomly distributed throughout the concrete matrix. Fiber types include: steel fibers (improve post-crack behavior, fatigue), polypropylene (control plastic shrinkage cracking), glass fibers (architectural panels), and macro-synthetic fibers (structural applications). Benefits include improved crack control, ductility, impact resistance, fatigue resistance, and reduced plastic shrinkage. Dosages typically range from 0.1-2% by volume depending on fiber type and application.