Process for reinforcing high-strength epoxy-steel wire mesh structure block

Abstract

The invention discloses a process for reinforcing a high-strength epoxy-steel wire mesh structure block. According to the process, field grouting reinforcement treatment is performed for the structure block. The process comprises the following steps: A) arranging a formwork on the surface of a processed structure, and laying an isolating layer on the inner side of the formwork; B) placing an embossing woven steel fabric embedded part serving as a reinforcement body in the formwork; C) pouring high-strength, high-temperature resistant and high-fluidity epoxy resin grouting materials in the formwork, wherein the sectional reinforcement ratio is 1%; and D) after epoxy resin curing, removing the formwork to finish reinforcement operation. According to the process, not only are the high strength and high temperature resistant characteristics of the epoxy resin grouting materials maintained, but also the toughness of the materials is improved obviously, reinforcement treatment is performed on reinforcing bar concrete or prestressed concrete beams with structure bearing capacity weakened increasingly, the normal use load of the reinforcing bar concrete or prestressed concrete beams is recovered and improved, and the tensile limiting strain of the reinforcing bar concrete or prestressed concrete beams is improved.

Description

technical field [0001] The invention relates to a novel reinforcement grouting material, which belongs to the technical field of structural engineering reinforcement maintenance. Background technique [0002] According to incomplete statistics, due to factors such as vehicle overruns, environmental erosion, and material aging, more than one-third of my country's main highway bridges currently have hidden dangers such as structural defects, damage to varying degrees, and partial functional failures, which seriously threaten the safety of bridges. , has become a bottleneck restricting the development of my country's road transportation. [0003] In foreign countries, bridge reinforcement materials have attracted widespread attention, and international specialized institutions have been established for research. High-performance concrete (HPC) is developed from high-strength concrete. It is a new type of high-tech concrete. Its configuration is characterized by the use of low w...

AI Technical Summary

Problems solved by technology

[0005] 2. During the reinforcement construction process of existing materials, it is difficult to make and takes a long time to maintain

The general concrete curing period is about 28 days; fiber concrete is easily distributed unevenly due to the influence of the mixing process during the mixing process, and the controllability and testability are poor.

[0006] 3. The low bonding performance between the reinforcement material and the base metal, and the high requirements for reinforcement technology affect the reinforcement effect

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