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Elastic curing ballast bed material and indoor test piece forming and manufacturing method thereof

A production method and ballast bed technology, which is applied in the field of rail transit materials, can solve problems such as poor stability, mud turning, and easy pulverization of ballast, and achieve the effects of improving elasticity and toughness, simple construction technology, and superior performance

Pending Publication Date: 2021-08-20
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous improvement of railway operation speed, many problems have appeared in the traditional ballasted track, such as poor stability, easy hardening of the ballast bed, muddying, heavy maintenance and repair workload, easy pulverization of the ballast, and high-speed railway flying ballast, etc. The problem of ballastless track corresponding to ballast track is also obvious. The initial investment is huge, and high-speed trains are noisy during operation, and maintenance in the later stage of operation is very difficult.

Method used

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  • Elastic curing ballast bed material and indoor test piece forming and manufacturing method thereof
  • Elastic curing ballast bed material and indoor test piece forming and manufacturing method thereof
  • Elastic curing ballast bed material and indoor test piece forming and manufacturing method thereof

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Effect test

Embodiment 1

[0051] The elastically solidified ballast bed material of the present embodiment includes the following components in parts by mass:

[0052] 100 parts of limestone;

[0053] 6 parts of mineral powder;

[0054] 8 parts of rubber particles;

[0055] 5 parts of 70# base asphalt;

[0056] 2 parts of epoxy resin;

[0057] 2 parts of amine curing agent.

[0058] The raw materials of the above components are made into structural parts, and the steps are as follows:

[0059] 1. For ingredients, the raw materials are weighed according to the parts by mass corresponding to each component;

[0060] 2. Heating, drying limestone in an oven at 170°C; heating and softening 70# base asphalt in an oven at 160°C;

[0061] 3. Stir, start the mixer, control the temperature of the mixer at 160°C, add limestone, rubber granules, 70# matrix asphalt, epoxy resin and curing agent mixture, and mineral powder into the mixer in sequence, and stir thoroughly for 3 After the second time, put the st...

Embodiment 2

[0066] The elastically solidified ballast bed material of the present embodiment includes the following components in parts by mass:

[0067] 100 parts of limestone;

[0068] 8 parts of mineral powder;

[0069] 12 parts of rubber particles;

[0070] 7 parts of SBS modified asphalt;

[0071] 2.5 parts of epoxy resin;

[0072] 2.5 parts of amine curing agent.

[0073] The raw materials of the above components are made into structural parts, and the steps are as follows:

[0074] 1. For ingredients, the raw materials are weighed according to the parts by mass corresponding to each component;

[0075] 2. Heating, drying limestone in an oven at 175°C; heating and softening SBS modified asphalt in an oven at 165°C;

[0076] 3. Stirring, start the mixer, control the temperature of the mixer at 170°C, add limestone, rubber granules, SBS modified asphalt, epoxy resin and curing agent mixture, and mineral powder into the mixer in sequence, and stir fully for 2 After the second ti...

Embodiment 3

[0081] The elastically solidified ballast bed material of the present embodiment includes the following components in parts by mass:

[0082] 100 parts of limestone;

[0083] 7 parts of mineral powder;

[0084] 10 parts of rubber particles;

[0085] 6 parts of SBS modified asphalt;

[0086] 2 parts epoxy resin;

[0087] 2 parts of amine curing agent.

[0088] The raw materials of the above components are made into structural parts, and the steps are as follows:

[0089] 1. For ingredients, the raw materials are weighed according to the parts by mass corresponding to each component;

[0090] 2. Heating, drying limestone in an oven at 175°C; heating and softening SBS modified asphalt in an oven at 160°C;

[0091] 3. Stirring, start the mixer, control the temperature of the mixer at 170°C, add limestone, rubber granules, SBS modified asphalt, epoxy resin and curing agent mixture, and mineral powder into the mixer in sequence, and stir thoroughly for 3 After the second time...

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Abstract

The invention discloses an elastic curing ballast bed material and an indoor test piece forming and manufacturing method thereof, which belong to the technical field of rail transit materials. The elastic curing ballast bed material comprises the following components in parts by mass: 100 parts of limestone, 6-8 parts of mineral powder, 8-12 parts of rubber particles, and 9-12 parts of epoxy asphalt. According to the elastic curing ballast bed material, the epoxy asphalt is adopted as a main curing material to cure the limestone, the ballast bed material high in strength and excellent in performance can be obtained, the elasticity of the ballast bed material is improved by adding the specific component rubber particles, and the raw materials are environmentally friendly and economical; the construction cost of the elastic curing ballast bed can be well reduced, the fatigue repeated loading test verifies that the performance of the test piece obtained through the molding method can meet the performance requirement of the polyurethane curing ballast bed block, the ballast bed structure with the performance not weaker than the performance of the polyurethane curing ballast bed can be obtained at the low cost, the construction process is simple, and the method is suitable for popularization and application in the rail transit field.

Description

technical field [0001] The invention belongs to the technical field of rail transit materials, and more specifically relates to an elastic solidified ballast bed material and an indoor test piece forming method thereof. Background technique [0002] With the continuous improvement of railway operation speed, many problems have appeared in the traditional ballasted track, such as poor stability, easy hardening of the ballast bed, muddying, heavy maintenance and repair workload, easy pulverization of the ballast, and high-speed railway flying ballast, etc. The problem of ballastless track corresponding to ballast track is also obvious. The initial investment is huge, and high-speed trains are noisy during operation, and maintenance in the later stage of operation is very difficult. [0003] In recent years, in response to the needs of special locations and the existing ballast bonding technology, relevant domestic experts have developed an elastic curing technology for railway...

Claims

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Application Information

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IPC IPC(8): C04B26/26C04B111/50
CPCC04B26/26C04B2111/00017C04B2111/503C04B2111/0075C04B14/28C04B18/141C04B18/22C04B24/281C04B24/121
Inventor 杨军张泓黄卫石晨光王添令孙肖寅王建伟闵召辉王晓陈先华张磊刘嵩
Owner SOUTHEAST UNIV