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CA mortar for plate-type slag-free orbit and preparation method thereof

A technology of ballastless track and mortar, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc. Permeability and chemical resistance, improve compactness, reduce bleeding and segregation

Active Publication Date: 2012-05-23
LIUZHOU OVM MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of CA mortar for slab ballastless track and its preparation method, to solve the problems of poor fluidity, short working time, complex use method, harsh construction process and inconvenient transportation of existing CA mortar, and Meet the needs of high-speed railway high-volume applications

Method used

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  • CA mortar for plate-type slag-free orbit and preparation method thereof
  • CA mortar for plate-type slag-free orbit and preparation method thereof
  • CA mortar for plate-type slag-free orbit and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 Embodiment 6

[0052] A kind of CA mortar for slab ballastless track, it is the mixture that is made up of CA mortar dry powder, CA mortar emulsion, water, each component content in the mixture (referring to attached table 1) is calculated as in parts by weight:

[0053] CA mortar dry powder 100 parts by weight

[0054] CA mortar emulsion 50-55 parts by weight

[0055] 4-8 parts by weight of water.

[0056]The above CA mortar dry powder is a mixture composed of cement, AEA expansion agent, fly ash, cement accelerator, aluminum powder, defoamer, high-efficiency water reducer, redispersible latex powder, and fine sand. The content is calculated in parts by mass as:

[0057] 0.846 parts of cement AEA expansion agent 0.070 parts

[0058] 0.147 parts of fly ash 0.027 parts of cement accelerator

[0059] 0.0002 parts of aluminum powder 0.00053 parts of defoamer

[0060] High-efficiency water reducer 0.010 parts Redispersible latex powder 0.0022 parts

[0061] 2.183 parts of fine sand.

[00...

Embodiment 7 Embodiment 12

[0077] The CA mortar dry powder of various proportions in the CA mortar for slab ballastless track of the present invention is composed of cement, AEA expansion agent, fly ash, cement quick-setting agent, aluminum powder, defoamer, high-efficiency water reducer, The mixture composed of redispersible latex powder, fine sand, AE air-entraining agent, lignocellulose and cellulose ether, the content of each component in the mixture of each embodiment (see attached table 2) is calculated in parts by mass as:

[0078] Cement 0.8~0.88 parts AEA expansion agent 0.065~0.085 parts

[0079] 0.12-0.20 parts of fly ash 0.01-0.04 parts of cement quick-setting agent

[0080] Aluminum powder 0.0002~0.0005 parts Defoamer 0.0005~0.0010 parts

[0081] Superplasticizer 0.008~0.012 parts Redispersible latex powder 0~0.003 parts

[0082] Fine sand 2.00~2.40 parts AE air-entraining agent 0~0.0004

[0083] Lignocellulose 0-0.0014 parts Cellulose ether 0-0.0004 parts.

[0084] In each of the above...

Embodiment 19

[0110] The preparation method of CA mortar for slab ballastless track of the present invention, it comprises the following steps:

[0111] A. Material preparation: According to the total amount of CA mortar to be used, prepare CA mortar dry powder, CA mortar emulsion and water according to the following proportions:

[0112] CA mortar dry powder 100 parts by weight

[0113] CA mortar emulsion 50-55 parts by weight

[0114] 4-8 parts by weight of water

[0115] B. Put the water and CA mortar emulsion measured in proportion into the mixer at the same time or successively, start the mixer and stir for 3 minutes;

[0116] C. Put the measured CA mortar dry powder into the mixer. The time from the start of feeding to the completion of feeding should not exceed 10 minutes, and stir for 3 to 5 minutes after feeding;

[0117] D. Inspection of finished CA mortar:

[0118] Use a J-shaped funnel to test the CA mortar, requiring: the fluidity is within 16-26 seconds, and the air content ...

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Abstract

The invention discloses a CA slurry and manufacturing method of board-typed non-slag rail to fill the high-speed railroad subgrade, which comprises the following steps: blending dry powder of CA mortar and CA mortar emulsion and water with weight rate at 100:50-55:4-8 to form the CA mortar; allocating the dry powder of the CA mortar with cement, AEA swelling agent, coal ash, cement accelerator, aluminium powder, defoamer, highly effective dehydragent, dispersible emulsion powder, fine sand, AE air-entrainer, wood cellulose and cellulose ether; making slow-breaking slow hardening cation emulsified tar and composite emulsion of polychloroprene latex as CA mortar emulsion; stirring the prepared material, mortar emulsion and water; adding the dry powder of the mortar to stir; manufacturing the dry powder of CA mortar; adopting industrial manufacturing to produce stable-quality product; making the manufacturing and transportation conveniently.

Description

Technical field: [0001] The invention relates to a building material and a manufacturing method thereof, in particular to a CA mortar for a slab-type ballastless track suitable for pouring high-speed railway track subgrades and ballast beds and a production method thereof. Background technique: [0002] With the continuous development of economic construction, my country's railway passenger transport is developing towards high speed. Railways with a maximum operating speed of more than 200 kilometers per hour are called high-speed railways. High-speed railway tracks put forward high requirements for roadbeds and ballast beds. To ensure the strong stability and high smoothness of the track, it is a trend to adopt the structural form of the slab ballastless track. The elastic layer of the slab ballastless track structure is CementAsphalt mortar, referred to as CA mortar, which is an elastic subgrade material composed of asphalt mixed with several other polymer materials. It is ...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B18/08C04B22/04C04B24/38C04B24/36
CPCC04B28/02C04B26/26Y02W30/91C04B7/00C04B14/06C04B18/08C04B18/24C04B20/0092C04B22/008C04B22/04C04B24/2682C04B24/383C04B2103/0057C04B2103/22C04B2103/302C04B2103/304C04B2103/50C04B24/26C04B24/36
Inventor 朱万旭王日艺周红梅
Owner LIUZHOU OVM MASCH CO LTD
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