Glass Fiber Reinforced Concrete (GFRC) is a composite material made from a mixture of cement, sand, and other aggregates, with small amounts of glass fibers. The glass fibers are usually added in the form of chopped strands or mats of varying lengths and diameters. The fibers are added to the mix to provide additional strength and reinforcement, and are typically used in applications where a high degree of strength and durability are required.