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Method for reinforcing sand adhesion strength on epoxy resin impregnated fiber woven net surface

A technology of fiber woven mesh and epoxy resin, which is applied to building components, building insulation materials, buildings, etc., can solve problems such as concrete cracking, and achieve the effect of increasing frictional bonding, improving bonding strength, and fine cracks

Inactive Publication Date: 2006-02-08
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this invention is to provide a method of utilizing epoxy resin to impregnate fiber woven net and stick sand on its surface to increase its bonding strength with concrete, so as to solve the problem of concrete cracking

Method used

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Examples

Experimental program
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Embodiment Construction

[0007] The specific embodiments of the present invention will be described in detail below in conjunction with the technical solutions.

[0008] step 1.

[0009] The epoxy resin and the curing agent are mixed and stirred at a ratio of 4:1 to 5:1, and a diluent is added to the mixed solution according to the fluidity of the mixed solution. After it is fully mixed, dip the fiber woven net into it or use a brush to evenly brush on the surface of the fiber woven net.

[0010] Step 2.

[0011] After the surface of the fiber mesh is evenly covered with epoxy resin, apply fine sand evenly on the surface of the fiber mesh.

[0012] Step 3.

[0013] After the epoxy resin has hardened, the fiber woven mesh is embedded in the concrete.

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PUM

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Abstract

The present invention belongs to the field of civil engineering technology, relates to fiber net and concrete adhering technology, and is especially method of strengthening adhesion of sand onto epoxy resin soaked woven fiber net. The present invention features that woven fiber net is first soaked inside in the mixed liquid of epoxy resin and curing agent in the weight ratio of 4-5 and dilute in proper amount based on the flowing performance of the liquid; spreading fine sand to the surface of soaked fiber net; and burying the fiber net with completely cured epoxy resin inside concrete. The present invention can raise the binding strength between woven fiber net and concrete, and limit cracking in concrete for form fine, dense and homogeneous cracks.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and relates to the bonding technology of fiber nets and concrete, in particular to a method for enhancing bonding strength by sticking sand on the surface of epoxy resin impregnated fiber braided nets. Background technique [0002] At present, the traditional reinforced concrete structure will corrode the steel bars due to the intrusion of chloride ions or carbon dioxide, thereby reducing the bearing capacity of the structure. According to statistics, the corrosion loss in some countries in the world can account for an average of 2% to 4% of the total output value of the national economy; among them, those considered to be related to steel corrosion can account for 40%. In addition, since reinforced concrete structures are not shielded from magnetic fields, this has the potential to cause problems for humans, especially in hospitals. Some medical equipment in the magnetic field may be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/35E04B1/62
Inventor 徐世烺李赫李庆华
Owner DALIAN UNIV OF TECH