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A kind of diatomite epoxy asphalt for expansion joint replacement and its preparation method and application

A technology of soil epoxy asphalt and expansion joints, which is applied to building components, building insulation materials, buildings, etc., can solve the problems of large influence of curing reaction temperature and time, difficult control, and increased construction difficulty, so as to improve the curing reaction The effects of time, improved safety, and strong economic applicability

Inactive Publication Date: 2019-03-22
CHONGQING JIAOTONG UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the curing reaction occurs immediately after the epoxy resin is mixed with the curing agent, the curing reaction is greatly affected by temperature and time and is not easy to control. In order to ensure the construction quality, the construction difficulty is increased.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The following parts by mass of raw materials are used to prepare diatomite epoxy asphalt for expansion joint replacement: 100 parts of asphalt, 30.8 parts of epoxy resin, 40 parts of diatomaceous earth, 9.2 parts of curing agent (by mass ratio of 4:2:3 triethanolamine, m-phenylenediamine and caprolactam).

[0030] Its preparation steps are:

[0031] 1) Stir diatomaceous earth and epoxy resin evenly at a mass ratio of 1:1, then place them in a high-temperature furnace at 90°C for 20 minutes, and continue stirring for 3 to 5 minutes (repeat the heat preservation and stirring twice), so that the silicon The alginate absorbs the epoxy resin and discharges the air, then seals and cools to room temperature to obtain material A. There is agglomeration in material A cooled to room temperature, and the temperature is raised to 90°C and stirred evenly.

[0032] 2) Mix the curing agent and the remaining diatomaceous earth and stir evenly, then heat in a high-temperature furnace ...

Embodiment 2

[0040] The following parts by mass of raw materials are used to prepare diatomite epoxy asphalt for expansion joint replacement: 100 parts of asphalt, 30.8 parts of epoxy resin, 40 parts of diatomaceous earth, 9.2 parts of curing agent (by mass ratio of 4:2:3 triethanolamine, m-phenylenediamine and caprolactam).

[0041] Its preparation steps are:

[0042] 1) Stir diatomaceous earth and epoxy resin evenly at a mass ratio of 1:1, then place them in a high-temperature furnace at 90°C for 20 minutes, and continue stirring for 3 to 5 minutes (repeat the heat preservation and stirring twice), so that the silicon The alginate absorbs the epoxy resin and discharges the air, then seals and cools to room temperature to obtain material A. There is agglomeration in material A cooled to room temperature, and the temperature is raised to 90°C and stirred evenly.

[0043] 2) Mix the curing agent and the remaining diatomaceous earth and stir evenly, then heat in a high-temperature furnace ...

Embodiment 3

[0051] The following raw materials by mass are used to prepare diatomite epoxy asphalt for expansion joint replacement: 100 parts of asphalt, 40 parts of epoxy resin, 32 parts of diatomaceous earth, and 12 parts of curing agent (by mass ratio of 4:2:3) triethanolamine, m-phenylenediamine and caprolactam).

[0052] Its preparation steps are:

[0053] 1) Stir diatomaceous earth and epoxy resin evenly at a mass ratio of 1:2, then place them in a high-temperature furnace at 90°C for 20 minutes, and continue stirring for 3 to 5 minutes (repeat the heat preservation and stirring twice), so that the silicon The alginate absorbs the epoxy resin and discharges the air, then seals and cools to room temperature to obtain material A. There is agglomeration in material A cooled to room temperature, and the temperature is raised to 90°C and stirred evenly.

[0054] 2) Mix the curing agent and the remaining diatomaceous earth and stir evenly, then heat in a high-temperature furnace at 80°C...

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Abstract

The invention discloses diatomite-epoxy asphalt for expansion joint replacement and a preparation method and application of the diatomite-epoxy asphalt for expansion joint replacement. The diatomite-epoxy asphalt comprises, by mass, 100 parts of asphalt, 15-40 parts of epoxy resin, 20-55 parts of diatomite and 5-15 parts of solidifying agent. The preparation method includes mixing the diatomite with the epoxy resin to obtain a material A, mixing the solidifying agent with the residual diatomite to obtain a material B, and adding the asphalt so as to obtain the diatomite-epoxy asphalt. When applied to expansion joint replacement, the diatomite-epoxy asphalt is mixed with aggregate uniformly prior to construction.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a diatomite epoxy asphalt for expansion joint replacement and a preparation method and application thereof. Background technique [0002] With the rapid development of the expressway, the traffic volume of the highway has increased sharply, the speed of the vehicle and the axle load of the vehicle have continued to increase, and the damage of the expansion joint has become more prominent. If it cannot be repaired in time, it will seriously affect the road performance, driving safety and comfort. During the replacement of bridge expansion joints, traffic congestion is a common big problem. Conventional expansion joint replacement methods block the traffic for a long time, and often need to implement traffic control, which often leads to blockage, which is easy to cause safety accidents and affects the production and life of the masses bring many security ri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L63/00C08K3/34C08G59/64C08G59/60
CPCC08G59/60C08G59/64C08L95/00C08L63/00C08K3/346
Inventor 郑丹陈波黄才政
Owner CHONGQING JIAOTONG UNIVERSITY
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