Technology of strengthening concrete structures with carbon fiber sheet
Technology of strengthening concrete structures with carbon fiber sheet is high performance carbon fiber resin material bonded to the surface of building structures, the formation of advanced composite materials, work with the existing structures, thereby reinforcing and improving the behavior of structures of new technologies. Method is now strengthened with CFRP sheets Japan, United States and Europe and other developed countries for bridges, tunnels, buildings and reinforcement of reinforced concrete structure of advanced methods, has also been widely used in China.
The key technology of strengthening concrete structures with carbon fiber sheet: (1) must be fully saturated with carbon fiber epoxy resin material; Micron each tiny carbon fibers are bonded together; Put stress on the common; (2) must be bonded chipboard with the existing structure built of carbon fiber composites, and formation of new structures to withstand stress.
Concrete structures reinforced with CFRP main material: (1) carbon fiber cloth; (2) carbon fiber cloth resin.
Carbon fiber cloth strengthening technology advantages
1, light weight; Thickness is small; Reinforced not increase increasing the thickness of the substrate;
2, good flexibility; Application of Yu Liang; Column; Plate; Pipes and wall elements in various shapes;
3, acid; Alkali; Chemical corrosion; Apply a variety of harsh environments;
4, construction convenient, short construction period;
5, pollution-free, green environmental protection requirements;
6, long storage life, operational long term.
CFRP applied range
1, flexural and shear strengthening of RC beams; Flexural reinforcement; Seismic strengthening of columns;
2, plant; The building; School premises; Hospitals and other industrial and civil building reinforcement;
3, bridge, water, nuclear power and energy infrastructure reinforcement.