A kind of rapid repair material for expansion joint and preparation method thereof

A technology for repairing materials and expansion joints, applied in the field of pavement repair, can solve the problems of high brittleness, low bonding strength, poor tensile strength and interfacial adhesion, etc., and achieve large surface structure depth, high early strength, and road performance. Good results

Active Publication Date: 2016-01-20
广东建科交通工程质量检测中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent application CN103387353A discloses a polyurethane concrete quick repair material, which is composed of polyurethane monomer, polyol, plasticizer, catalyst and fine aggregate, and its compressive strength can reach more than 20MPa after 2 hours of curing, but The bonding strength is low, less than 4MPa after 7 days of health preservation
It can be seen that the existing expansion joint repair materials such as cement concrete have defects such as high brittleness, poor tensile strength and interface adhesion, and cannot meet the needs of use.

Method used

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  • A kind of rapid repair material for expansion joint and preparation method thereof
  • A kind of rapid repair material for expansion joint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Rapid repair material for expansion joints, made from the following components:

[0035] A component: epoxy resin E51100 parts by mass;

[0036] NC51312 parts by mass;

[0037] 20 parts by mass of diatomaceous earth;

[0038] Component B: 80 parts by mass of phenalkamine curing agent;

[0039] UV3291.5 parts by mass;

[0040] Component C: aggregate, the ratio of its mass to the sum of the mass of components A and B is 4:1. The aggregate is wear-resistant stone with a particle size of 0.6mm-3.3mm. It is made from copper ore, crushed and fired at a high temperature of 3000°C. The Mohs hardness is above 5.

[0041] Put epoxy resin E51, reactive diluent NC513, diatomaceous earth, phenalkamine curing agent, and ultraviolet light absorber UV329 into the mixing tank in turn, stir evenly to form a glue, and then mix with aggregate evenly to obtain expansion joints. Quick patch material.

Embodiment 2

[0043] Rapid repair material for expansion joints, made from the following components:

[0044] A component: epoxy resin E51100 parts by mass;

[0045] NC51312 parts by mass;

[0046] 20 parts by mass of active silica powder;

[0047] Component B: 80 parts by mass of phenalkamine curing agent;

[0048] UV3291.5 parts by mass;

[0049] Component C: aggregate, the ratio of its mass to the sum of the mass of components A and B is 5:1. The aggregate is wear-resistant stone with a particle size of 0.6mm-3.3mm. It is made from iron ore tailings and fired at 3000°C after crushing. The Mohs hardness is above 5.

[0050] Put epoxy resin E51, active diluent NC513, active silicon micropowder, phenalkamine curing agent, and ultraviolet light absorber UV329 into the mixing tank in turn, stir evenly to form a glue, and then mix with aggregate evenly to obtain the expansion joint. Quick patch material.

Embodiment 3

[0052] A quick repair material for expansion joints, made from the following components:

[0053] A component: epoxy resin E51100 parts by mass;

[0054] NC51315 parts by mass;

[0055] 30 parts by mass of diatomaceous earth;

[0056] Component B: 80 parts by mass of phenalkamine curing agent;

[0057] UV3291.5 parts by mass;

[0058] Component C: aggregate, the ratio of its mass to the sum of the mass of components A and B is 6:1. The aggregate is wear-resistant stone with a particle size of 0.6mm-3.3mm. It is made from copper ore, crushed and fired at a high temperature of 3000°C. The Mohs hardness is above 5.

[0059] Put epoxy resin E51, reactive diluent NC513, diatomaceous earth, phenalkamine curing agent, and ultraviolet light absorber UV329 into the mixing tank in turn, stir evenly to form a glue, and then mix with aggregate evenly to obtain expansion joints. Quick patch material.

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Abstract

The invention discloses a quick repair material for expansion joints, which comprises the following components in parts by mass: 100 parts by mass of epoxy resin, 10-30 parts by mass of reactive diluent, 5-40 parts by mass of filler, and 50-100 parts by mass of curing agent , 0.1-3 parts by mass of ultraviolet light absorber and aggregate, the ratio of the mass of the aggregate to the sum of the mass of the two groups of components A and B is 3:1-8:1. The invention also discloses a preparation method of the repair material. The repair material has good toughness, short closed traffic time, outstanding interface bonding performance, easy construction and operation, and long service life.

Description

technical field [0001] The invention belongs to the field of road surface repair, and in particular relates to a quick repair material for expansion joints and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of the national economy, my country's road traffic construction has made remarkable achievements. As an important auxiliary structure of bridge engineering, expansion joints directly affect traffic safety, driving comfort and vehicle speed, and also affect the service life of the overall bridge. In addition, due to the large traffic flow of roads in our country, long-term frequent repair of expansion joints will not only easily cause traffic congestion, but also cause huge economic losses due to poor circulation of people and goods. Therefore, in view of the above-mentioned characteristics, it is very necessary and urgent to develop a rapid repair technology for expansion joints that has little impact on traffic. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/14C04B18/12
CPCY02W30/91
Inventor 孙杨勇尹昌宇
Owner 广东建科交通工程质量检测中心有限公司
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