Carbon fiber reinforcement project
The construction method of carbon fiber repair and reinforcement of concrete structure is simple to operate, safe and reliable, and its effect performance is excellent. Compared with traditional methods, it has greater economic, social and environmental benefits.
1 Carbon fiber sheet is lightweight and high-strength: its tensile strength is 8~10 times higher than that of ordinary steel.
It can be integrated with the structure after being pasted with a bonding resin, and it can work reliably with reinforced concrete and has an excellent reinforcement effect, while the increase in the self-weight of the structure can be almost ignored.
2 Corrosion resistance: Carbon fiber can effectively protect the concrete and steel bars of the components from being exposed to acid, alkali, salt,
Corrosion of water and other media.
3 Aging resistance: The carbon fiber and rubber structure itself and the reinforced components can withstand long-term ultraviolet and nuclear radiation; long-term use at -54~80℃, the strength will not decrease; the accelerated exposure aging test can last for 40 years The performance remains unchanged; and after the surface coating, the durability is more prominent.
4 Keep the original structure and beautiful appearance: The carbon fiber sheet is easy to attach to the original shape of the component, and basically does not change the cross-sectional size of the component.
The back surface of the patch can be painted and pasted with decorative materials and fireproof materials.
5 The construction is simple and fast: the traditional reinforcement methods, such as the concrete-clad method and the steel-bonded method, require a large number of chipping
Planting steel bars, welding, and pouring concrete work, but carbon fiber sheet construction is not required. Therefore, it has very low requirements for construction space, is convenient for operation in narrow spaces, is fast in construction, and has little interference to production and use.
(2) Scope of application
Carbon fiber sheet repair, reinforcement and reinforcement are suitable for reinforced concrete beams, slabs, columns, shear wall structures, culverts, linings, reinforced concrete chimneys, silos, pools, tanks, etc. in tunnels, bridges and various industrial and civil buildings , Damage caused by design, construction, use, aging or some kind of erosion, disaster, and insufficient bearing capacity due to overload.
(3) Construction process
Component surface treatment→base treatment→coating primer coating→repairing defects with epoxy putty→sticking carbon fiber→curing→coating