In the concrete reinforcement technology, the carbon fiber reinfroced polymer(CFRP) reinforcement method can effectively improve the yield load and the ultimate bearing capacity of the component, but because of some shortcomings of the CFRP, the reinforcing effect of CFRP is still discounted.

• the ratio of strength and elastic modulus of carbon fiber fabric is much larger than that of steel bar. If we want to exert greater intensity, carbon fiber fabric needs greater deformation. Therefore, under normal circumstances, the utilization rate of CFRP is low.

• the shear strength of epoxy carbon fiber adhesive used for CFRP is not high. When the structure is subjected to large loads, it is very easy to destroy the end of the carbon fiber cloth, and the breakage caused by the shear or bending crack, which can not reach the important safety accident. In addition, the peel failure is brittle failure and should be avoided in engineering.

• for the existing structures with certain damage, the external bonded carbon fiber reinfroced polymer(CFRP) can not solve the problem of the existing damage recovery, and can not avoid the effect of the two stress problems after reinforcement.

• the bonding of CFRP has limited effect on improving the performance of the service stage.

In order to make full use of the advantages of carbon fiber and solve the above defects, the newprestressed FRP plate reinforcement technology came into being. Through tension equipment, the carbon fiber laminate stretched to a certain strength and then fixed to the tensile surface of the reinforced component to form a prestress system. The prestress formed is not only able to balance a part of the weight of the structure and the structural internal forces and deformations caused by partial loads, to alleviate the strain of the internal reinforcement. It can also play a role in reducing the crack width and even limiting the crack in the cracked structure, improving the strength utilization of the carbon fiber sheet, and increasing the yield load and the ultimate bearing capacity of the structure to a greater extent.

As we all know, the key difficulty of the prestressed CFRP reinforcement technology is to solve the relationship between the anchorage and the carbon plate, the anchorage and the concrete. The HM prestress prestressed FRP plate not only makes up the defects of the CFRP, but also have more key features can solve more problem.

• The clamping force of the anchorage can be safer

The anchorage is an important part of the prestressed carbon plate strengthening system. By using the taper of the anchor ring and the clip, the tension force has a great clamping force. Through the hundreds of experiments, the anchors and the clip with the tooth pattern are skillfully made through the hundreds of experiments with the angle, the distance and the depth of the gear and the length of the clip. The clamping of CFRP is completed by rigid self locking, which can minimize the damage of CFRP and achieve the goal of safer anchorage clamping force.

• The anchorage is small in size and small in slotting, which can perfectly avoid the position of steel bar.

The anchorage is miniaturized, and the required slot is small, which is less concerned with the structure of reinforced concrete bridges.

• The anchorage is small, slotting is the lightest, and the damage to the structure is the lowest.

Another advantage of the small anchorage is that it has the smallest damage to the structure, the large anchorage, which means that the slot of the anchorage should be large, so that the large area of slotting is not a reinforcement, but a "bridge" for the bridge structure.

• Most complete specifications, suitable for various structural requirements

  
  

  
  

  Thickness	1.2mm	1.2mm	1.4mm	1.4mm	2.0mm	2.0mm	3.0mm	3.0mm
  Width	50mm	100m	50mm	100m	50mm	100m	50mm	100m
  Length	100m