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Emulsified asphalt for ballastless track cement emulsified asphalt mortar and preparation method of emulsified asphalt

A technology of cement emulsified asphalt and emulsified asphalt, which is applied to building components, building insulation materials, buildings, etc., can solve the problem of emulsifier not contained, and achieve the effects of strong temperature adaptability, good compatibility, and good mixing effect

Inactive Publication Date: 2015-01-14
METALS & CHEM RES INST CHINA ACAD OF RAILWAY SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no relevant patent that clearly states that the emulsifier used in emulsified asphalt does not contain nonylphenol or nonylphenol derivatives

Method used

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  • Emulsified asphalt for ballastless track cement emulsified asphalt mortar and preparation method of emulsified asphalt
  • Emulsified asphalt for ballastless track cement emulsified asphalt mortar and preparation method of emulsified asphalt
  • Emulsified asphalt for ballastless track cement emulsified asphalt mortar and preparation method of emulsified asphalt

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Embodiment 1

[0050] In this embodiment, the asphalt adopts No. 90 heavy traffic road petroleum asphalt, the cationic emulsifier is bis-octyl / decyl dimethyl ammonium chloride and aminated lignin, and the nonionic emulsifier is fatty acid polyoxyethylene ester, thickening The agent is cellulose ether and polyurethane, the mineral emulsifier is bentonite, the stabilizer is sodium chloride, the auxiliary agent is polycarboxylic acid, and the pH regulator is hydrochloric acid. The composition is shown in Table 5.

[0051] Preparation method of emulsified asphalt:

[0052] (1) Dehydrate No. 90 heavy-traffic road petroleum asphalt at 100°C, and then control the temperature of the asphalt at 120°C to 130°C;

[0053] (2) Add emulsifier, thickener, stabilizer and auxiliary agent to 60°C water in proportion, then adjust the pH value of the solution to 2.5-3.0 with hydrochloric acid, and control the solution temperature at 50°C-60°C;

[0054] (3) Pour the solution obtained in step (2) into a cleaned ...

Embodiment 2

[0058] In this embodiment, the asphalt is No. 110 heavy traffic road petroleum asphalt, the cationic emulsifier is octadecyltrimethylammonium chloride, octadecyldimethylpropionamide, and the nonionic emulsifier is polyoxyethylene ether , its polyoxyethylene polymerization degree is 40, zwitterionic emulsifier is lauryl imidazoline betaine, thickener is polyether, stabilizer is ammonium chloride, calcium chloride, additive is polycarboxylic acid, pH adjustment The agent is glacial acetic acid, and its composition is shown in Table 5.

[0059] Preparation method of emulsified asphalt:

[0060] (1) Dehydrate No. 110 heavy traffic road petroleum asphalt at 100°C, and then control the temperature of the asphalt at 120°C to 130°C;

[0061] (2) Add emulsifier, thickener, stabilizer and auxiliary agent to 60°C water in proportion, then adjust the pH value of the solution to 2.5-3.0 with hydrochloric acid, and control the solution temperature at 50°C-60°C;

[0062] (3) Pour the solut...

Embodiment 3

[0066] In this embodiment, the asphalt is modified asphalt with a SBS content of 2%, and the cationic emulsifier is cetyltrimethylammonium chloride, octadecyltrimethylammonium chloride and imidazoline, and the nonionic emulsifier It is polyoxyethylene ester, its polyoxyethylene polymerization degree is 30, the zwitterionic emulsifier is lauryl amidopropyl betaine, the thickener is polyurea, the stabilizer is calcium chloride, and the auxiliary agent is polycarboxylic acid , the pH regulator is hydrochloric acid, and its composition is as shown in Table 5.

[0067] Preparation method of emulsified asphalt:

[0068] (1) Dehydrate the SBS modified asphalt at 100°C, and then control the temperature of the asphalt at 150°C to 160°C;

[0069] (2) Add emulsifier, thickener, stabilizer and auxiliary agent to 70°C water in proportion, then adjust the pH value of the solution to 2.5-3.0 with hydrochloric acid, and control the solution temperature at 65°C-70°C;

[0070] (3) Pour the so...

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Abstract

The invention provides emulsified asphalt for ballastless track cement emulsified asphalt mortar and a preparation method of the emulsified asphalt. The emulsified asphalt contains 55-65 parts of matrix asphalt or modified asphalt, 35-45 parts of water, 1.0-3.0 parts of emulsifying agent, 0.05-0.8 part of stabilizer, 0.01-0.1 part of thickening agent, 0.1-2.0 parts of pH regulator and 0.1-1.5 parts of adjuvant. The emulsified asphalt provided by the invention has favorable stability and homogeneity and strong in temperature adaptability when being mixed with inorganic materials such as cement, sand and the like; and the emulsifying agent adopted in the preparation process of the emulsified asphalt provided by the invention does not contain nonyl phenol and derivatives thereof, so that the environment friendliness of the emulsified asphalt and a finished product prepared from the emulsified asphalt is achieved.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to emulsified asphalt for ballastless track cement emulsified asphalt mortar and a preparation method thereof. Background technique [0002] At present, my country is in the period of large-scale high-speed railway construction. Among the announced 20,000 kilometers of high-speed railways, passenger dedicated lines and intercity railways, there are more than 6,000 kilometers of slab ballastless tracks. Slab ballastless tracks have become the main track structure of my country's high-speed railways. one of the forms. Among them, cement emulsified asphalt mortar is a key component of slab ballastless track. On the one hand, it plays the role of filling, supporting, bearing, and transmitting force, and provides appropriate elasticity and toughness. On the other hand, it facilitates the adjustment of track construction errors and greatly It simplifies the later operation an...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L53/02C08L9/06C08L23/22C08J3/03C04B26/26
Inventor 李海燕贾恒琼邵丕彦吴韶亮李洪刚王涛魏瞾刘子科
Owner METALS & CHEM RES INST CHINA ACAD OF RAILWAY SCI
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