Carbon fiber is a new type of material, belonging to high-tech products. It has developed rapidly in recent years and has been widely used in many fields such as aviation, aerospace, automotive, environmental engineering, chemical engineering, energy, transportation, construction, electronics and sports equipment. With a series of excellent properties such as high specific strength, high specific modulus, high temperature resistance, corrosion resistance, fatigue resistance, creep resistance, electrical conductivity, heat transfer and small thermal expansion coefficient, it can not only bear the load as a structural material but also serve as a function Materials play a role.

    In the field of civil engineering and building materials, the largest amount of cement, cement brittle, low tensile strength and other shortcomings. In order to improve these drawbacks, people use the mechanical properties of carbon fiber, made of concrete or cement matrix made of carbon fiber reinforced composite material. Due to its high strength, large modulus, small specific gravity, alkali corrosion resistance, harmless to humans and animals, carbon fiber and aramid fiber are increasingly favored by people in civil engineering applications. At present, the formation of five major application hot spots.
    First, carbon fiber reinforced concrete. Carbon fiber reinforced concrete refers to short or long fiber reinforced concrete materials. It is mainly used as high-rise building wall panels. The main features of carbon fiber reinforced concrete are; it has excellent mechanical properties, waterproof penetration resistance, natural temperature difference performance not possessed by conventional reinforced concrete, stable chemical properties in strong alkali environment, long-lasting mechanical strength and dimensional stability . Replacing steel bars with carbon fiber can eliminate the salt water degradation and deterioration of reinforced concrete, reduce the weight of building components, facilitate the installation and construction and shorten the construction period.

    Second, the composite bar. The most widely used structural materials in the building materials industry are steel and medium carbon steel reinforced concrete, which can cause catastrophic damage to buildings. Carbon fiber resin-based composite rod will become the people to develop alternative materials for building steel with a new high-performance building materials, an important species. Concrete reinforcing carbon fiber reinforced plastics based composite rods have recently been commercialized in the United States.

    Third, carbon fiber reinforced plastic laminate. Fiber-reinforced adhesive laminates are one- or two-sided fiberglass laminates glued to one or both sides of the board to withstand tensile or compressive loads. The key to fiber-reinforced adhesive layer manufacturing technology is strain matching between fiber-reinforced laminates and wood boards. The fiber reinforced composite laminates on the surface of fiber reinforced adhesive laminates have good flame retardancy and are usually prepared by pultrusion process. The reinforcing material used is a mixture of carbon fibers and other fibers (glass fibers), the matrix being an epoxy resin system.

    Fourth, carbon fiber composite sheet. Carbon fiber composite sheet is the use of the room temperature curing thermosetting resin (usually epoxy resin) to align the alignment of the carbon fiber bundles made of the sheet. According to the design requirements of the sheet, posted in the structure of reinforced parts, give full play to the high tensile modulus of carbon fiber and high tensile strength to repair and reinforce reinforced concrete structures.

    Fifth, other applications. Carbon fiber can also be used in the following forms of civil construction:
     ① making curtain wall panels (non-load-bearing walls), is a kind of lightweight board with excellent aging resistance and outstanding mechanical properties, can be used in high-rise buildings and coastal corrosion-resistant buildings.
     ② waterproof roof coating, the carbon fiber cement mixture is used to apply a flat roof, as weatherable and impermeable surface, and the appearance of this coating looks beautiful.
     ③ electromagnetic shielding plates and conductive plates, due to the high conductivity of carbon fiber, can eliminate the static discharge from the atmosphere and lightning.
     ④ wall and anti-corrosion coating, wear paving materials, chemical resistance of the floor.
    

The application of carbon fiber in civil construction is still a new technology.

Now more and more applications of carbon fiber, the cost is also declining, the use of carbon fiber in civil engineering construction quality greatly improved.

Yancheng Xiangsheng Carbon Fiber Products Co., Ltd. integrates scientific research, development, production and sales and devotes itself to researching the diversity and functionality of special fibers such as carbon fiber, aramid fiber and high modulus PE,