Physical properties vary but, in general, glass fiber reinforced concrete has characteristics intermediate between the rigidity and compressive strength of cement and the high tensile strength of glass fiber. Its impact resistance is 20 times that of asbestos-cement, and GFRC offers two to three times the flexural strength of unreinforced concrete. However, workability typically decreases due to higher cement contents and a lower content and smaller size of coarse aggregate used. Three practical methods are used to produce GFRC: premixing, automatic spray-suction process and direct-spray mixing. Shape, aesthetics, surface characteristics and weight savings are what make GFRC ideal for some applications. For these, despite its bulk cost, GFRC can offer savings.