In recent years, the project reinforced CFRP used by many welcome its reinforcement ways following six steps. Take a look na!

Unloading → substrate coated with primer treatment → → leveling → Paste → protection.

(1) Before unloading Hejia solid as possible to deal with the reinforcement member unloading.

(2) the substrate processing. Concrete surface spalling, hollowing, cellular, and corrosion deterioration phenomena site should be chiseled, for a larger area of ​​the inferior layer in addition to cutting after application of epoxy mortar repair. Cracks treatment site should be closed first. Concrete grinder, sandpaper and other equipment to remove the concrete surface laitance, oil and other impurities, the concrete surface of the base member to be polished smooth, especially convex parts of the surface to be polished, corner pasting and polished to be chamfered into a circular shape (R≥30mm). The concrete surface with a hair dryer clean and dry.

(3) coated with primer. Press the main agent: curing agent = 2 (or other ratios) will be the main agent and curing agent has placed in the container, with a spring balance metering, electric mixer Stir, according to the actual temperature determines the amount and strictly control the use of time. Generally used within 1h. It will end with a roller brush glue evenly brushing the concrete surface, to be rubber curing (curing time depending on the scene and set the temperature to touch dry subject) and then proceed to the next step of construction. Usually the curing time is 2 ~ 3d.

(4) leveling. Concrete surface depressions site application filled, templates and other joints height difference of the site appears to be filled, to minimize the height difference. The corner should also be processed into a smooth arc, radius of not less than 30mm.

(5) Paste CFRP. According to size and design requirements of cutting layers CFRP, unless special requirements, fiber cloth length should generally be within 3m of. Deployment, stirring surface glue (using the same method with the primer), then spread evenly on the site to be pasted in the lap, to be more concrete corner brushing some of the other parts. Paste CFRP, in determining the correct parts stripped release paper pasted repeatedly rolled with a special roller along the fiber direction, remove air bubbles, and plastic fully saturated cloth. Multilayer paste should repeat the above steps until the surface of the fiber cloth touch dry before the next layer of paste. In the final surface layer CFRP surface glue evenly. Fiber cloth along the fiber direction of the lap length not less than 100mm, fabric ends by lateral fiber cloth or stick steel fixed.

(6) protection. Fiber cloth surface reinforcement should be taken after the plaster or paint spray fire protection

According to the above process were pavement reinforcement, reinforcement will achieve good results Oh! We Yancheng Cheung Shing CFRP Carbon Fiber Co., Ltd. Main products, if necessary, please call us!