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The flexural and shear bearing capacity of concrete beams strengthened with CFRP is significantly improved. CFRP can effectively inhibit the development of cracks, and make the width and spacing of cracks smaller.
2020-04-01 16:49:19AFRP composites have a series of advantages, such as light weight, high strength, high modulus, good corrosion resistance, non-conductivity, good impact resistance and so on. Therefore, it has a very wide range of applications in bridge, tunnel, subway, harbor and industrial and civil construction projects, especially in the field of concrete structure reinforcement and repair.
2020-04-01 16:49:58Carbon fiber composite strengthening methods include carbon fiber fabric strengthening and carbon fiber strip strengthening, and carbon fiber strip reinfrocement has many advantages over carbon fiber fabric reinforcement.
2020-04-01 16:53:01FRP composite material have high strength and specific stiffness, to achieve the same reinforcement effec. The size of the composite material is obviously less than the size of the steel plate, after reinforcement, it does not increase the weight of the original structure and the size of the original component.
2020-04-01 16:55:15The anchoring adhesive is less than 80 C, and the high temperature produced in the welding is extremely unfavorable to the rebar adhesive, which usually directly affects the performance of the rebar adhesive and affects the anchorage and strengthening effect of the reinforcement.
2020-04-01 17:02:55Strengthening of cap and beam of bridge pier and abutment
2020-04-01 16:35:16Common diseases of Concrete Bridges:spalling, exposed tendons, honeycomb, concrete corrosion, mesh cracks.
2018-07-31 16:24:14Harmful cracks will not affect the bridge structure, affect the service life of bridges, accumulate over time, will lead to bridge collapse.
2018-07-30 17:35:36For cracks in concrete beams with width of 0.2-mm, besides epoxy resin pressure grouting according to the two methods, CFRP is bonded to seal the surface. Reinforced concrete beams are reinforced by CFRP sheets at the bottom of the mid span.
2018-07-30 17:13:25