Epoxy asphalt cement mortar, preparation method, and application of epoxy asphalt cement mortar in ballastless tracks

A technology of epoxy asphalt and cement mortar, applied in the direction of track, road, ballast layer, etc., to achieve the effect of wide service temperature range, strong chemical corrosion resistance and excellent weather resistance

Inactive Publication Date: 2012-02-22
JURONG NINGWU CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006]At present, ordinary CA mortar has poor temperature adaptability, insufficient filling performance, easy delamination, poor fatigue resistance, surface cracking after curing of CA mortar, and short working time and other problems, especially in the interaction of dynamic loads and low-temperature service, there are problems such as cracking and fragmentation, and insufficient elasticity in low-temperature environments.

Method used

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  • Epoxy asphalt cement mortar, preparation method, and application of epoxy asphalt cement mortar in ballastless tracks
  • Epoxy asphalt cement mortar, preparation method, and application of epoxy asphalt cement mortar in ballastless tracks
  • Epoxy asphalt cement mortar, preparation method, and application of epoxy asphalt cement mortar in ballastless tracks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Prepare each raw material according to the ratio, weigh 1460 kilograms of dry powder, and epoxy asphalt emulsion A and B components are 231.6 kilograms and 38.6 kilograms respectively (wherein A:B=1:6, the solid content of A and B components are both 60%.), 170 kg of water, 5.5 kg of water reducer, and 0.5 kg of defoamer. The cement in the dry powder material is Conch brand P.II.525 portland cement produced in Tongling. The fineness mode of the sand in the dry powder material is 1.4-1.7. The defoamer is a water-based silicone defoamer from Henan Daochun Co., Ltd. The water reducer is a polycarboxylate water reducer produced by Fuzhou Chuangxian New Material Co., Ltd.

[0043]Prepare according to the following process:

[0044] a. Prepare various raw materials according to the ratio.

[0045] b. Add components A and B of epoxy asphalt emulsion, add water and water reducer at the same time, and stir at a low speed (30r / min) for 1 minute.

[0046] c. Add defoamer, stir...

Embodiment 2

[0056] Prepare each raw material according to the ratio, weigh 1455 kilograms of dry powder, and epoxy asphalt emulsion A and B components are 214.2 kilograms and 35.7 kilograms respectively (wherein A:B=1:6, the solid content of A and B components are both 60%.), 175 kg of water, 6.0 kg of water reducer, and 0.6 kg of defoamer. The cement in the dry powder material is Conch brand P.II.525 portland cement produced in Tongling. The fineness mode of the sand in the dry powder material is 1.4-1.7. The defoamer is a water-based silicone defoamer from Henan Daochun Co., Ltd. The water reducer is a polycarboxylate water reducer produced by Tianjin Yongyang Co., Ltd.

[0057] Prepare according to the following process:

[0058] a. Prepare various raw materials according to the ratio.

[0059] b. Add components A and B of epoxy asphalt emulsion, add water and water reducer at the same time, and stir at a low speed (30r / min) for 1 minute.

[0060] c. Add defoamer, stir at low speed...

Embodiment 3

[0070] Prepare each raw material according to the ratio, weigh 1460 kilograms of dry powder, and epoxy asphalt emulsion A and B components are 227.5 kilograms and 32.5 kilograms respectively (wherein A:B=1:7, the solid content of A and B components are both 60%.), 168 kg of water, 5.0 kg of water reducer, and 0.5 kg of defoamer. The cement in the dry powder material is Conch brand P.II.525 portland cement produced in Tongling. The fineness mode of the sand in the dry powder material is 1.4-1.7. The defoamer is a water-based silicone defoamer from Henan Daochun Co., Ltd. The water reducer is a polycarboxylate water reducer produced by Fuzhou Chuangxian New Material Co., Ltd.

[0071] Prepare according to the following process:

[0072] a. Prepare various raw materials according to the ratio.

[0073] b. Add components A and B of epoxy asphalt emulsion, add water and water reducer at the same time, and stir at a low speed (30r / min) for 1 minute.

[0074] c. Add defoamer, sti...

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PUM

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Abstract

The present invention discloses an epoxy asphalt cement mortar, a preparation method, and an application of the epoxy asphalt cement mortar in ballastless tracks. The epoxy cement mortar is prepared by mixing cement, sand, an epoxy asphalt emulsion component A, an epoxy asphalt emulsion component B, water, a water reducing agent, an antifoaming agent, aluminum powder, an expansion agent and the like, wherein the cement, the sand, the expansion agent, the aluminum powder and the like are firstly uniformly mixed to prepare the dried material. The raw materials of the epoxy asphalt cement mortar comprise, by weight, 1350-1560 parts of the dried material, 0-50 parts of the epoxy asphalt emulsion A, 230-280 parts of the epoxy asphalt emulsion B, 135-180 parts of the water, 0.5-10 parts of the water reducing agent and 0-5 parts of the antifoaming agent. The epoxy asphalt cement mortar of the present invention has characteristics of wide working temperature range, excellent weather resistance, strong chemical resistance and long service life, and is especially suitable for the passenger special line CRTS TT type slab ballastless tracks. The present invention further provides the preparation method for the epoxy asphalt cement mortar, and the application of the epoxy asphalt cement mortar in the ballastless tracks.

Description

Technical field: [0001] The invention belongs to the field of building materials, in particular to epoxy asphalt cement mortar and its preparation method and its application on ballastless tracks. Background technique: [0002] Slab track is a ballastless track structure suitable for the development of high-speed railway or passenger dedicated line. It has a better and more stable track structure than ballasted track, and the maintenance workload and maintenance costs of operation are far lower than ballasted track. In order to meet the high stability, high durability, and comfort requirements of high-speed railways, it is necessary to adopt and develop ballastless tracks with less maintenance. [0003] The slab ballastless track structure is mainly composed of track slabs, cement emulsified asphalt mortar elastic cushion, concrete base, convex block and rail fasteners. Cement-emulsified asphalt mortar is mainly used as an elastic cushion between the track slab and the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B26/26E01B1/00
Inventor 陈志明方兴龙焦真邵利周文平陶正贤封凯应军翟洪金朱建设
Owner JURONG NINGWU CHEM
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