1. The principle of carbon fiber mesh reinforcement

The carbon fiber grid reinforcement system refers to a process in which carbon fiber grids are first laid, and then high-quality spray mortar containing active ingredients is used for construction. Through the special coating treatment of the carbon fiber mesh, it is ensured that there is sufficient binding force and anchoring force between the carbon fiber mesh and the mortar.

2. Carbon fiber mesh cloth and wet spray mortar

CFN Carbon Fiber Mesh

Carbon fiber mesh cloth is a new type of reinforcement material that has been gradually applied to structural reinforcement in recent years. It is woven using a special weaving process and has undergone multiple coating technology treatments. It not only reduces the damage to the strength of the carbon fiber yarn during the weaving process, but also ensures the fireproof performance of the carbon fiber mesh and the binding force between the carbon fiber mesh and the mortar.

Wet spray mortar

Wet spray mortar is a special product that is reinforced with carbon fiber mesh cloth. It contains a special active ingredient, so that the calcium silicate hydrate in the mortar will grow into the carbon fibers of the CFN carbon fiber grid during the curing process of the mortar. In this way, a shear-resistant locking and anchoring relationship is formed between the CFN carbon fiber grid and the mortar.

3. the characteristics of carbon fiber mesh reinforcement construction method

Good fire resistance: 1cm thick mortar protective layer can meet the fire protection requirements of 60 minutes of fire protection

Suitable for humid environments: suitable for reinforcement in humid environments such as tunnels

Good air permeability: the combination of mortar and carbon fiber materials is used to ensure air permeability

4. Application areas

Tunnel reinforcement, bridge reinforcement, industrial and civil construction reinforcement, water conservancy, municipal and other reinforcement

5. Comparison of carbon fiber mesh reinforcement construction method with carbon fiber cloth, steel mesh spray mortar and crack repair industry

5.1. Comparison of carbon fiber mesh reinforcement method and carbon fiber cloth reinforcement method

When the carbon fiber grid reinforcement system is used, no concrete surface leveling repair work is required. Leveling, repairing and spraying mortar are completed in one operation.

5.2. Comparison of carbon fiber mesh reinforcement method and steel mesh shotcrete method in tunnel lining reinforcement

The main advantage of the carbon fiber grid reinforcement system is that it can reduce the thickness of the shotcrete layer by a few centimeters. The advantage of this is that a larger section area will be left after the repair work is completed to meet the requirements of air flow or tunnel boundaries.

5.3. Comparison of carbon fiber mesh reinforcement construction method and traditional crack repair and reinforcement

The carbon fiber grid reinforcement system is particularly suitable for the repair of large-area cracks in highway, railway bridges and tunnel structures and the repair of local damage to concrete.

Carbon fiber grid crack control and repair and reinforcement technology

No need to repair cracks in advance. The concrete structure was repaired by wet spraying polymer mortar and CFN200/200 bidirectional carbon fiber grid. The total thickness of the mortar layer is only 1.5cm-2.0cm. The CFN200/200 bidirectional carbon fiber grid has a spacing of only 2.0cm between each bundle of carbon fiber filaments, which can play a significant anti-cracking effect. It has a wide range of applications and can be used to seal various depths and widths of cracks on the surface of concrete and control the development of cracks.