What is FRP?
FRP is an abbreviation for Fiber Reinforced Polymer. FRPs have different applications in the construction industry. The most common use of FRP is the rehabilitation and reinforcement of concrete structures. FRP fibers can increase the strength of concrete by placing and installing them on concrete surfaces such as slabs, beams, columns, concrete walls and concrete foundation. The wide range of fibers applications consist of residential, commercial, offices and industrial buildings, heavy machinery and heavy equipment as well as water and sea structures such as dams and canals. In addition, FRP fibers can be used to repair engineering infrastructure such as road and rail bridges, water and chemical reservoirs, silos, and cooling towers.
Generally, FRP is a compound material, made up of two totally different parts. The first part is matrix and the other is the fiber. Its matrix is composed of some chemicals, such as epoxy resins and polyester. Additives of these materials economize and improve the properties of the compound. The role of the fibers is to provide sufficient mechanical strength in the FRP. Even though the matrix does not have a load carrying role, it is needed to protect the fibers from corrosion and damage. Matrix also carry out the load transfer in FRP. Another application of the matrix is to control the local buckling of the pressed fibers. Various factors affect the productivity of FRP fibers. Among these factors are the following:
- FRP fiber type
- The amount of FRP fiber
- How to place FRP fibers
- Heat transfer coefficient
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