Reinforcement method for concrete structure

Abstract

A reinforcing method for concrete structure follows the steps as: surface treatment to the concrete structure to reveal structure sheaf and smooth and dust clean; preset super strength steel micro fiber on web texture in the same direction to form a steel micro fiber tape; spray coat on the concrete structure with a layer of high strength polymer mortar or resin mortar; stick the steel micro fibertape to the surface; spray coat on the steel fiber tape with a layer of high strength polymer mortar or resin mortar and roll on along the fiber direction to form a close grained layer; finally spraycoat protection layer to it.

Description

technical field [0001] The invention relates to a reinforcement method for reinforcing and repairing concrete structures. Background technique [0002] In order to improve the bearing capacity of concrete structures, existing technologies mainly include reinforcement methods of adding components, reinforcement methods of enlarging sections, reinforcement methods of bonding steel, and reinforcement methods of pasting carbon fiber cloth. [0003] However, the construction period of the reinforcement method with additional components is long, and the additional components affect the usable space. When the reinforcement method of enlarged section is adopted, the self-weight and geometric dimensions of the components after reinforcement will increase, which will affect the aesthetics and usable space of the building. The bonded steel reinforcement method requires strict fire prevention and antirust treatment after reinforcement, and regular maintenance is required, and the later...

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Problems solved by technology

[0003] However, the construction period of the reinforcement method of adding components is long, and the additional components affect the usable space

When the reinforcement method of enlarged section is adopted, the self-weight and geometric dimensions of the components after reinforcement will increase, which will affect the aesthetics and usable space of the building.

The bonded steel reinforcement method requires strict fire prevention and antirust treatment after reinforcement, and regular maintenance is required, and the later maintenance costs are high

The carbon fiber cloth reinforcement method does not increase the size of the components, basically does not affect the appearance of the building, and the construction is simple and does not require post-maintenance. However, because the carbon fiber cloth reinforcement uses epoxy resin as the base material, its durability and fire resistance are poor. On the other hand, the material price of carbon fiber is also higher

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