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Emulsifier for high-iron emulsified asphalt and preparation method thereof

A technology of emulsified asphalt and emulsifier, applied in building components, building insulation materials, construction and other directions, can solve the problems of slow cooling, demulsification of emulsified asphalt, poor thermal stability of emulsified asphalt, etc., and achieves simple production process and high social efficiency. Economic benefits and the effect of extending the construction time limit of high-speed rail

Active Publication Date: 2013-04-24
ANHUI ZHONGTIE ENGINEER MATERIAL SCI & TECH CO LTD
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AI Technical Summary

Problems solved by technology

The emulsified asphalt prepared by the currently used emulsifier has poor thermal stability, and requires slow cooling, and the cooling rate needs to be strictly controlled, otherwise it will easily cause the emulsified asphalt to break.

Method used

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  • Emulsifier for high-iron emulsified asphalt and preparation method thereof
  • Emulsifier for high-iron emulsified asphalt and preparation method thereof

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Embodiment Construction

[0028] In order to better understand the present invention, the present invention will be described in detail below in conjunction with the examples.

[0029] 1. Compounding of emulsifier

[0030] (1) Add 58.5kg tallow propylene diamine and 32.9kg octylphenol polyoxyethylene ether-10 (OP-10) successively in the reactor, open the stirrer of the reactor, the rotating speed is 60rads / min, then slowly heat to 100°C, constant temperature stirring for 60min;

[0031] (2) Cool the above materials to below 60°C, add 0.7kg of acetic acid and 1.0kg of calcium chloride, and continue stirring for 30min until completely dissolved;

[0032] (3) Cool the mixture obtained in (2) to room temperature, add 6.9 kg of ethanol, and stir until the materials are completely mixed to obtain 100 kg of emulsifier finished product.

[0033] 2. Preparation of emulsified asphalt

[0034] Add 380kg of warm water at 70°C to the reaction kettle, then add 20kg of the reconstituted emulsifier into the warm wa...

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Abstract

The invention relates to an emulsifier for high-iron emulsified asphalt and a preparation method thereof. The emulsifier comprises the following raw materials in part by weight: 35.6 to 63.0 parts of alkylamine emulsifier, 20.2 to 38.3 parts of polyxyethylated alkylphenol emulsifier, 0.3 to 1.1 parts of aid 1, 0 to 1.0 part of aid 2 and 5.0 to 8.0 parts of aid 3. The emulsified asphalt prepared from the emulsifier can be used in a relatively wide temperature range and can be cooled rapidly without breaking emulsion. The emulsifier has the outstanding characteristics that: an emulsifier which is suitable for different temperature environments can be compounded by adjusting the composition proportion of the emulsifier and the problems of poor thermal stability of the high-iron emulsified asphalt and easy emulsion breaking are solved; and the emulsifier has high thermal stability, a small using amount and a wide application range, is easy and convenient to operate during use, can be prepared into high-stability high-iron emulsified asphalt and can lower the cost of an emulsion additive by about 20 percent.

Description

technical field [0001] The invention relates to the field of building materials for high-speed railway slab ballastless tracks, in particular to an emulsifier for high-speed railway emulsified asphalt and a preparation method thereof. Background technique [0002] Slab track is a ballastless track structure suitable for the development of high-speed railways. It is more stable than ballasted track, and its operation and maintenance amount and maintenance cost are much lower than ballasted track. Cement emulsified asphalt mortar is a key component of slab track, it is made of emulsified asphalt, cement, fine aggregate, admixture materials, polymer emulsion, water, aluminum powder, various admixtures and other raw materials at room temperature. It is used as the elastic adjustment filling layer between the slab track concrete base and the track slab, and is a semi-rigid body with both concrete rigidity and asphalt elasticity. The main functions of the cement emulsified asphal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08K13/02C08K5/17C08K5/13
Inventor 黄玉华黄海汪志勇陈娟王青杰李龙
Owner ANHUI ZHONGTIE ENGINEER MATERIAL SCI & TECH CO LTD
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