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A kind of structural adhesive containing quartz sand, preparation method and application thereof

A technology of quartz sand and structural adhesive, which is applied in building construction, building maintenance, construction, etc., can solve the problem of less new structural adhesives, etc., and achieve the effect of improving the reinforcement effect.

Active Publication Date: 2020-12-15
EAST CHINA JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, bonded steel reinforcement technology has been widely used in dangerous bridges, old bridges or old buildings, and the study of the stripping time of steel plates has always been the key to this technology. A lot of research has been done on its peeling effect at home and abroad, mainly on the selection of structural adhesive, the thickness of the adhesive, the length and thickness of the steel plate, and the boundary conditions of the steel plate. However, in these studies, the structural adhesive The choice is usually relatively conventional, and few researchers have developed new structural adhesives in a targeted manner, and no researchers have studied the field of adding quartz sand to structural adhesives to strengthen concrete beams. Therefore, for structures containing quartz sand The research and development of glue, as well as the proposal and verification of its use in bonding steel to strengthen concrete beams are very necessary

Method used

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  • A kind of structural adhesive containing quartz sand, preparation method and application thereof
  • A kind of structural adhesive containing quartz sand, preparation method and application thereof
  • A kind of structural adhesive containing quartz sand, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A structural adhesive containing quartz sand, which is composed of the following components in parts by weight: 2 parts of adhesive, 2 parts of curing agent, 2 parts of quartz sand, and 0.7 parts of steel fiber; the adhesive and curing agent are JGN type two-component adhesive steel Reinforce the structural glue, the specification of quartz sand is 300 mesh, the diameter of steel fiber is 0.08mm, and the length is 2mm.

[0023] Concrete preparation method is implemented according to the following steps:

[0024] Weigh 2 parts of adhesive, 2 parts of curing agent, 2 parts of quartz sand, and 0.6 parts of steel fiber; pour the weighed adhesive and curing agent into a clean container, stir well until the color is uniform, and then add quartz sand into it and steel fibers, fully stirred evenly to obtain the structural glue containing quartz sand.

Embodiment 2

[0026] A structural adhesive containing quartz sand, which consists of the following components in parts by weight: 1 part of adhesive, 3 parts of curing agent, 2 parts of 150-mesh quartz sand, and 0.5 part of steel fiber; the adhesive and curing agent are JGN type two-component Bond steel to reinforce structural glue, the specification of quartz sand is 200 mesh, the diameter of steel fiber is 0.08mm, and the length is 2mm. The specific preparation method is the same as in Example 1, except that the formula in Example 1 is changed into the formula in Example 2.

Embodiment 3

[0028] A structural adhesive containing quartz sand, which is composed of the following components in parts by weight: 3 parts of adhesive, 1 part of curing agent, 2 parts of quartz sand, and 0.6 parts of steel fiber; the adhesive and curing agent are JGN type two-component adhesive steel Reinforce the structural glue, the specification of quartz sand is 150 mesh, the diameter of steel fiber is 0.08mm, and the length is 2mm.

[0029] The specific preparation method is the same as in Example 1, except that the formula in Example 1 is changed into the formula in Example 3.

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Abstract

The invention discloses a structural adhesive containing quartz sand. The structural adhesive is prepared from, by weight, 1-3 parts of an adhesive, 1-3 parts of a curing agent, 2.0-2.8 parts of quartz sand and 0.5-0.7 part of steel fibers. The invention also provides a preparation method and application of the structural adhesive containing the quartz sand. The structural adhesive containing the quartz sand is applied to a steel-bonded reinforced concrete beam so that the interface stress between a steel plate and a concrete beam in the steel-bonded reinforced concrete beam can be effectively improved, the steel plate can bear the load of a tension zone of the concrete beam to a greater degree, the effect of the adhered steel plate is fully played, and the reinforcing effect is improved.

Description

technical field [0001] The invention relates to the technical field of concrete structure reinforcement, in particular to a structural glue containing quartz sand, a preparation method and an application thereof. Background technique [0002] In recent years, bonded steel reinforcement technology has been widely used in dangerous bridges, old bridges or old buildings, and the study of the stripping time of steel plates has always been the key to this technology. A lot of research has been done on its peeling effect at home and abroad, mainly on the selection of structural adhesive, the thickness of the adhesive, the length and thickness of the steel plate, and the boundary conditions of the steel plate. However, in these studies, the structural adhesive The choice is usually relatively conventional, and few researchers have developed new structural adhesives in a targeted manner, and no researchers have studied the field of adding quartz sand to structural adhesives to stren...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J11/04E04G23/02
CPCC09J11/04E04G23/0218
Inventor 程海根刘宇根李浩姜勇胡晨胡钧剑詹晨路
Owner EAST CHINA JIAOTONG UNIVERSITY
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