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CA mortar dry powder for plate-type slag-free orbit

A ballastless track, mortar dry powder technology, applied in the field of building materials, can solve the problems of harsh construction process, inconvenient transportation, complicated CA mortar production method, etc., to reduce bleeding and segregation, reduce water absorption, and reduce Cl-expansion capacity. Effect

Active Publication Date: 2007-10-24
LIUZHOU OVM MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a dry powder of CA mortar for slab ballastless track, use it in conjunction with CA mortar emulsion and water to prepare CA mortar to solve the problems of complicated production methods, harsh construction techniques and inconvenient transportation in the existing CA mortar. Meet the needs of high-speed railway high-volume applications

Method used

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  • CA mortar dry powder for plate-type slag-free orbit

Examples

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Effect test

Embodiment 1

[0030] A dry CA mortar powder for slab ballastless track, which is composed of cement, AEA expansion agent, fly ash, cement accelerator, aluminum powder, defoamer, high-efficiency water reducer, redispersible latex powder, and fine sand The mixture, the content of each component in the mixture is calculated as:

[0031] Cement 0.846 parts AEA expansion agent 0.070 parts

[0032] Fly ash 0.147 part cement accelerator 0.027 part

[0033] Aluminum powder 0.0002 parts Defoamer 0.00053 parts

[0034] Superplasticizer 0.010 parts Redispersible latex powder 0.0022 parts

[0035] Fine sand 2.183 parts.

Embodiment 2 Embodiment 6

[0037] CA mortar dry powder for slab ballastless track with different proportions, its basic components are the same as in Example 1, and it is also composed of cement, AEA expansion agent, fly ash, cement quick-setting agent, aluminum powder, defoamer, high-efficiency water-reducing agent agent, redispersible latex powder, and fine sand, the difference is that the components are increased or decreased, such as AE air-entraining agent and lignocellulose with strong cross-linking function can be added, and a non-ionic Semi-synthetic high molecular polymers - cellulose ether, etc., the content of each component can also be appropriately increased or decreased according to needs, wherein the content of each component is calculated as follows in parts by mass:

[0038] Cement 0.8~0.88 parts AEA expansion agent 0.065~0.085 parts

[0039] Fly ash 0.12~0.20 parts Cement accelerator 0.01~0.04 parts

[0040] Aluminum powder 0.0002~0.0005 parts Defoamer 0.0005~0.0010 parts

[0041] Su...

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Abstract

The invention discloses a CA slurry dried-powder of board-typed non-slag rail, which comprises the following parts: cement, AEA swelling agent, coal ash, cement accelerator, aluminium powder, defoamer, high-effective dehydragent, redispensable emulsion powder, fine sand, AE air-entrainer, ligno-cellulose and cellulose ether. The CA slurry dried-powder adopts industrial manufacturing to produce the product with stable quality, high fluidity and compactness, which is fit for high-speed railroad.

Description

Technical field: [0001] The invention relates to a building material, in particular to a building material used for preparing CA mortar for slab-type ballastless track poured into high-speed railway track subgrades and ballast beds. 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. The high-speed railway track puts forward high requirements on the subgrade and ballast bed. In order 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. Its composition is an elastic roadbed material made of asphalt mixed with several other polymer materials, and it is a key componen...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B18/08C04B22/04C04B14/06C04B24/38
CPCC04B26/26C04B28/02Y02W30/91C04B14/06C04B18/08C04B18/24C04B20/0092C04B22/008C04B22/04C04B24/36C04B24/383C04B2103/0057C04B2103/22C04B2103/302C04B2103/304C04B2103/50C04B24/26C04B7/00
Inventor 王日艺周红梅朱万旭
Owner LIUZHOU OVM MASCH CO LTD
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