Prefabricated fiberboard and method for connecting prefabricated fiberboard with composite material profile

Abstract

The invention discloses a prefabricated fiberboard and a method for connecting the prefabricated fiberboard with a composite material profile. The fiberboard comprises an epoxy resin adhesive layer provided with a carbon fiber cloth impregnating adhesive, a carbon fiber cloth layer connected with the epoxy resin adhesive layer, an adhesive sand mixed layer connected with the carbon fiber cloth layer and a plurality of steel fibers perpendicularly disposed on the carbon fiber cloth layer, wherein the carbon fiber cloth layer is provided with a carbon fiber cloth; and the adhesive sand mixed layer is provided with sand particles. An anchoring performance enhancement technology based on the prefabricated fiberboard and the method for connecting the prefabricated fiberboard with the compositematerial profile can significantly improve the anchoring performance between the composite material profile and concrete, the construction is convenient, and the application prospects in a composite material-concrete composite structure are broad.

Description

technical field [0001] The invention relates to the technical field of new structures and new material structures of civil engineering, in particular to a prefabricated fiberboard and a method for connecting the prefabricated fiberboard to composite material profiles. Background technique [0002] Fiber-reinforced composite materials (referred to as "composite materials") are non-metallic materials composed of carbon fiber, glass fiber, aramid fiber and other reinforcing materials and a resin matrix. They have the advantages of light weight, high strength, corrosion resistance, and fatigue resistance. However, its compressive bearing capacity is low and its price is high, so it needs to be used in combination with other conventional building materials. The reasonable combination of composite materials and concrete can avoid the disadvantages of composite materials and give full play to the advantages of the two materials, thus forming a composite member with good mechanical ...

AI Technical Summary

Problems solved by technology

[0003] However, the surface of the composite material is smooth, and its natural bonding performance with concrete is poor. Simply relying on the natural bonding between the composite material and concrete cannot meet the requirements of the two materials working together.

In addition, the shear and local compressive strength of composite materials are low, and they are not weldable. The traditional method of strengthening the interface of steel-concrete composite structures is not suitable for composite materials-concrete composite structures.

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