Railway sleeper and its preparing method

A technology for sleepers and railways, applied in tracks, roads, ballast layers, etc., can solve problems such as environmental protection and natural ecological balance damage, and achieve the effect of small thermal expansion and contraction coefficient, stable foundation, and noise reduction.

Inactive Publication Date: 2005-01-05
杨普安
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional railway sleepers can no longer meet the requirements of high-speed railway trains. At the same time, the aggregate of railway sleepers comes from excavating mountains to get rocks, and digging rivers to get sand will lead to the destruction of environmental protection and natural ecological balance.

Method used

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  • Railway sleeper and its preparing method
  • Railway sleeper and its preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like figure 1 As shown, the production process of fly ash ceramsite includes the following procedures.

[0026] Choose 85% of fly ash and 15% of fly ash ceramsite expansion curing agent with binder to mix, add water and mix, prepare into balls, and sinter the above fly ash material balls through cylinder segmented rotary kiln, Prepare ceramsite with strength above 4.0Mpa. The "cylinder segmented rotary kiln" is my authorized patent (ZL: 01222922.9); the preparation method of the fly ash ceramsite expansion curing agent added in the sintering fly ash ceramsite process is a patent technology that I have applied for and published , its publication number is CN1288875A.

[0027] The strength of fly ash ceramsite exceeds 4.0MPa.

[0028] like figure 2 As shown, the sleeper material preparation method is as follows:

[0029] The first step: choose the binder, 42.5 # (equivalent to national standard 600 # The above standard) 8% of cement, 42% of fly ash ceramsite, 32% ...

Embodiment 2

[0032] like figure 1 As shown, the production process of fly ash ceramsite includes the following procedures

[0033] Choose 82% fly ash, mix with 18% fly ash ceramsite expansion curing agent with binder, mix with water, prepare into balls, and then sinter the above fly ash slurry through the cylinder segmented rotary kiln processed to prepare fly ash ceramsite with a strength exceeding 4.0Mpa. The adoption of this equipment and the preparation method of the fly ash ceramsite expansion curing agent added in the sintering fly ash ceramsite process are the same as in the first embodiment.

[0034] like figure 2 As shown, the sleeper material preparation method is as follows:

[0035] The first step: choose the binder, 42.5 # (equivalent to national standard 600 # The above standard) cement 12%, fly ash ceramsite 48%, pottery sand 28%, powdery concrete early strength agent, antifreeze agent and water mixture 12% into the concrete mixer, powdery concrete early strength agent...

Embodiment 3

[0038] like figure 1 As shown, the production process of fly ash ceramsite includes the following procedures.

[0039] Choose 80% fly ash, mix with 20% fly ash ceramsite expansion curing agent with binder, mix with water, prepare into balls, and then sinter the above fly ash material balls through the cylinder segmented rotary kiln , Prepared into fly ash ceramsite with strength exceeding 4.0Mpa. The preparation method of the cylinder segmented rotary kiln equipment and the fly ash ceramsite expansion and curing agent is the same as in the first embodiment.

[0040] like figure 2 Shown, the preparation method of its railway sleeper is as follows:

[0041] The first step: choose the binder, 42.5 # (equivalent to national standard 600 # The above standard) 10% of cement, 50% of fly ash ceramsite, 30% of pottery sand, powdery concrete early strength agent and water mixture 10% are put into the concrete mixer for batching, and the mixing ratio of powdery concrete early stren...

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Abstract

The present invention aims at providing railway sleeper with light weight, high corrosion resistance, high damping and silencing effect, high strength and low cost. The technological scheme is that flyash haydite, pot sand, adhesive, additive and water are produced into the railway sleeper through mixing, depositing into mold with steel bar net, high frequency tamping, extruding to setting, demolding and steam curing. The sleeper is light weight, only weighing 1 / 3 to 1 / 2 of common concrete one, high in fireproof temperature, corrosion resistant, friction resistant and ageing resistant, and may be used to replace sleeper of timber and sandstone concrete.

Description

technical field [0001] The invention relates to a railway sleeper and a preparation method thereof, in particular to a bridge sleeper suitable for high-speed railways and a preparation method thereof. Background technique [0002] At present, railway sleepers commonly used at home and abroad are mainly prepared from wood, sandstone, reinforced concrete, etc. as main raw materials. The felling of forest wood is not conducive to the ecological protection of nature. The sleepers made of wood have been exposed to the sun and rain for many years, which is easy to corrode and decay, and it cannot adapt to the high-speed running of the train, which is easy to cause accidents for the safe operation of the train. The use of sandstone reinforced concrete sleepers improves the corrosion resistance, but the shock absorption performance of the train is not good, and the noise reduction effect is poor; and because the sandstone reinforced concrete is heavy, it takes a lot of manpower and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
CPCC04B2111/00129C04B28/04C04B2111/40Y02W30/91C04B14/06C04B18/08C04B24/24C04B32/02C04B40/0067C04B40/024
Inventor 杨普安
Owner 杨普安
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