Nanjing Mankate prestressed carbon plate, an invisible reinforcement weapon for Chongqing Road and Bridge

In April 2015, an innovative building reinforcement technology - prestressed carbon fiber plate technology, shined in the renovation project of the Lunan Trunk Road Bridge in Caiyuanba South District, Yuzhong District. It not only successfully completed the bridge reinforcement task, but also marked a major breakthrough in the actual engineering application of this emerging material and technology.

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The core concept of Nanjing Mankate?prestressed carbon fiber plate technology comes from the widespread application of prestressed technology in concrete structures. In short, prestressed technology is to apply a certain amount of pressure to the inside of the structure in a specific way before the structure officially bears external loads, so that the structure can rely on internal compressive stress to balance when facing external tensile stress, thereby effectively reducing or avoiding the occurrence of cracks and improving the overall bearing capacity and durability of the structure.

In the application of prestressed carbon fiber board technology, carbon fiber board is selected as the main reinforcement material because of its advantages such as light weight, high strength, corrosion resistance and convenient construction. The application of prestressed technology further amplifies the performance advantages of carbon fiber board. By applying prestress before installing the carbon fiber board, it is already in a high stress state when it is not subjected to external load. This means that once the structure begins to be stressed, the carbon fiber board can immediately play its high strength characteristics, effectively share and resist the tensile stress of the structure, thereby achieving early reinforcement and long-term protection of the structure.

Compared with the traditional bonding carbon fiber board reinforcement technology, prestressed carbon fiber board technology has the following significant advantages:

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Higher efficiency:?Since the carbon fiber board is already in a high stress state before being stressed, it can respond and resist external loads faster, improving the reinforcement efficiency.

Better performance:?The application of prestressed technology enables the high strength characteristics of carbon fiber board to be more fully utilized, thereby improving the overall performance of the reinforced structure.

Longer life:?By reducing or avoiding the occurrence of cracks, prestressed carbon fiber board reinforcement technology can significantly extend the service life of the structure and reduce maintenance costs.

Wider application:?This technology is not only suitable for the reinforcement of transportation facilities such as bridges, but can also be widely used in many fields such as construction, water conservancy, and electricity, showing broad application prospects.

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The successful practice of the bridge renovation project on the south main road in Caiyuanba South District, Yuzhong District, not only verified the feasibility and effectiveness of prestressed carbon fiber plate technology, but also provided valuable experience reference for subsequent similar projects. With the continuous maturity and promotion of technology, prestressed carbon fiber plate technology is expected to play a more important role in the field of building reinforcement in the future, and contribute more to the safety and stability of urban infrastructure.