What does carbon fiber reinforcement mean

What does carbon fiber reinforcement mean

Carbon fiber reinforcement refers to the use of carbon fiber as a reinforcement material for the reinforcement and repair of concrete structures. A considerable part of the existing buildings caused historical problems due to the low design load standards at that time, and some buildings are difficult to meet the needs of current specifications due to changes in use functions. , repair and reinforcement are urgently needed, and carbon fiber reinforcement is one of the reinforcement methods.

Carbon fiber reinforcement can be divided into carbon fiber cloth reinforcement and carbon fiber board reinforcement. It is mainly used for flexural and shear reinforcement of concrete structures. It is also widely used in various industrial and civil buildings and structures. powerful. Due to technical limitations, the research on carbon fiber reinforced masonry structures, steel structures, and wood structures is still in the initial stage.

The principle of carbon fiber processing

The principle of carbon fiber reinforcement process is to pre-impregnate carbon fiber with extremely high tensile strength with epoxy resin into a composite reinforcement material (unidirectional continuous fiber); use epoxy resin adhesive to stick it in the direction of tension or perpendicular to the crack direction to be repaired. On a strong structure, a new composite is formed, so that the reinforced paste material and the original reinforced concrete can be jointly stressed to increase the crack resistance or shear resistance of the structure, and improve the strength, stiffness, crack resistance and elongation of the structure.

The characteristics of carbon fiber reinforcement

1. Carbon fiber is lighter, less than a quarter of the specific gravity of steel.

2. The material can be used flexibly, the size has no fixed ratio, and the shape can be cut at will.

3. The construction is convenient, the work efficiency is high, and it can deal with various repair places without fixed facilities.

4. After reinforcement, the base material itself will not be changed, and the load-bearing capacity is greatly increased. After repairing, the surface can be painted with decorative materials.

5. Carbon fiber reinforced material has the advantages of corrosion resistance and anti-aging.

How much is carbon fiber reinforcement per square meter

1.The cost of carbon fiber reinforcement is affected by many factors. The cost of materials plus labor is generally about 200 CNY to 500 CNY per square meter. The specific price factors are:

2. Thickness of carbon fiber The thickness of carbon fiber required for different wall reinforcement is different, and the cost will naturally be different.

3. The size of the project The amount of work is large, the carbon fiber required is more, and the unit price is relatively cheaper.

4. Carbon fiber density In the sales of carbon fiber materials, there are often differences in density. Some building stairs do not need high density, and the cost is cheaper.