ABSTRACT
Mentioned composites consist of two parts; microscopic elements and insoluble particles firm early periods, different types of composites have been used by civil engineers. Wood is a natural composite, multilayer boards have been used as laminated natural composite; in general, concrete has been used as a composite by distinguishable elements from other composed material in fabrication of composed materials by wide spectrum application. These materials consist of elements by different mechanical behavior, but resulted composite can have entirely different properties relative to own conformed particles. Fibers are primary and loading part of composites the second part is called resin or adds beside material which connect fibers it each other. Fiber is prepared by elastic, brittle and resistant. Material thickness of these fibers is 5-25 micron. Depend on their types. Today, fibers are manufactured in different shapes size and types. Glass, carbon, aramid or vinyl on fibers are available. The name of FRP manufactured by this material begins by first letter of fiber composite.These materials consist of CFRP. GFRP, AFRP, VFRP as a FRP manufactured by carbon, glass. Aramid and vinylon fibers. They have own mechanical and physical specifications.
