What is reinforcement of concrete column with carbon fiber?

In parallel with the development of metal, ceramic and polymer materials, Composite materials are developing at a high speed. This material is widely used in engineering materials in recent years. On the other hand , Technology applications are becoming more important in today’s world, The use of technology in projects such as strengthening concrete columns is increasing day by day.

In this group of materials, Carbon Fiber Reinforced Composite (CFRP) advanced composite materials are usually preferred over others in strategic applications due to outstanding features such as high load bearing capacity and low density.

The greatest damage to reinforced concrete structures in buildings is corrosion of steel. To prevent these damages and strengthen the concrete column, Today’s research has shown that carbon fiber reinforcement of concrete columns can be used as a suitable option for steel reinforcement. This material is a carbon fiber reinforced polymer, Which was able to prevent damage to concrete structures to a large extent due to its high flexibility and resistance to corrosion.

The raw material used to make carbon fiber is called the precursor. About 90% of carbon fiber produced is made of polyacrylonitrile. The remaining 10% is made from rayon or petroleum.

All of these materials are organic polymers characterized by long chains of molecules connected by carbon atoms and are involved in the process of strengthening concrete columns.

The exact composition of each precursor varies from company to company and is generally considered a trade secret. During the production process, It uses various gases and liquids. Some of these materials are designed to interact with fibers to achieve a specific effect, Others are designed to interact with or prevent certain interactions with fibers.

Application and uses of carbon fiber in construction and road construction

Carbon fiber is a composite material widely used in many applications such as the aviation or space industry, and sports equipment, The oil and gas industry, As well as the automobile industry. These fibers have specific hardness, special strength and high fatigue resistance compared to ordinary metals. So , They are suitable for use in structure required to bear the load.

In the automobile industry, The advantages of carbon fiber are weight reduction, integration and reduction of parts, The possibility of replacing damaged parts, Durability and strength, As well as attractiveness and beauty. However , Some cases prevent the use of these fibers. below, There is a more diverse application of these fibers in different industries.

• Strengthening concrete columns in structures

• Defense, space or aviation industries

• Car manufacturing

• Medical industries

• Energy sector

• Reinforcing and strengthening structures with CFRP compounds

• Reinforcing high-strength concrete

• Building light and resistant walls

• Retracted and prestressed carbon structures

• Used in the interior walls of tunnels

What are the advantages of using carbon fibers to strengthen concrete columns with carbon fibers?

Carbon fibers are about 5-10 micrometers in diameter and are composed mostly of carbon atoms. This kind of fiber has various advantages such as high stiffness, high tensile strength, low weight, high chemical resistance, high temperature tolerance and low thermal expansion. These features have made carbon fiber very popular in current industries such as aerospace, civil engineering, military, and automotive.

However , They are relatively expensive compared to similar fibers, Such as fiberglass or plastic fiber. Other uses of carbon fiber include the following.

High heat resistance of carbon fiber

Fire and burning are the most likely situations that can happen to the project. But using things that have the highest heat resistance can greatly help with fire insulation. for this purpose , Carbon fiber is used to strengthen concrete columns.

Lightweight

Strengthening the concrete column should not be associated with making the structure heavier. for this purpose, The use of materials that increase the weight of the structure should be reconsidered. So , Today carbon fiber is one of the most suitable options in terms of strength and lightness at the same time.

High tensile strength

Flexibility and high tensile strength can greatly prevent serious damage to the building and structure, Carbon fibers with high tensile strength have been able to find their place in the process of strengthening concrete columns and structures.

Suitable for fiber and carbon fiber anti-fatigue resistance

The life span of the structure depends on the strength of the structure’s columns. Now imagine a shaft with the best possible finish and a carbon fiber cover. Since this type of fiber has good fatigue resistance, This structure will be largely insured against settlement and collapse. Somehow the process of strengthening the concrete column in the entire structure was completed.

Durability and long life against chemicals

But the most important reason for using carbon fiber in the process of strengthening concrete columns is its durability and high resistance to chemicals. This feature made builders benefit from it in many of their projects. Especially project builders in wet areas where the structure column is destroyed by evaporation and mixing of liquids and chemicals.

Impermeable to X-rays

This feature is a good reason to use this type of fiber in medical structures; There are X-ray producing and radioactive devices that can cause a lot of damage to people and structures.