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High-permeability anion modified emulsified asphalt and preparation method thereof

An anionic modification and anionic emulsifier technology, applied in building components, building insulation materials, buildings, etc., can solve the problems of difficult to guarantee the bonding strength and difficult to determine the impact of the base layer, so as to improve capillary penetration and service life , the effect of reducing surface tension

Inactive Publication Date: 2013-02-06
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The penetration effect of this kind of emulsified asphalt is relatively ideal, and generally can penetrate 5-10mm into the base layer. High-permeability emulsified asphalt reduces the high pollution of kerosene-diluted asphalt to the environment, but does not fundamentally solve the defects of high cost and high pollution of kerosene-diluted asphalt, and it is difficult to determine the impact of a large amount of kerosene in the infiltration component on the base
In addition, most of the high-permeability emulsified asphalts currently use base asphalt, and it is difficult to guarantee whether the base asphalt can provide sufficient bonding strength between the semi-rigid base and the layer below the asphalt after demulsification

Method used

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  • High-permeability anion modified emulsified asphalt and preparation method thereof
  • High-permeability anion modified emulsified asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] First weigh 450g of Esso No. 110 road petroleum asphalt, and add 30g of diluent in the asphalt hot-melt state (120-140°C) (the diluent is mixed with self-refined processed light oil and white oil in a mass ratio of 1:1) , mechanically stir (about 10 minutes) and mix well, then add soap solution at 50-70°C, and then emulsify in asphalt emulsification equipment (colloid mill) to obtain the finished high-permeability anion-modified emulsified asphalt. The soap liquid consists of 450g water, 15g emulsifier (the emulsifier is mixed with sodium lauryl sulfate and AES at a mass ratio of 4:1), 1.5g sodium hydroxide, 33.5g anionic SBR latex 6516 and 20g fatty alcohol polyoxyethylene ether (Penetrant JFC-E from Jiangsu Haian Petrochemical Plant), and the obtained product meets the technical specifications of anionic emulsified asphalt required by JTG F40-2004. The main specifications are shown in Table 2.

Embodiment 2

[0043]Weigh 400g of petroleum asphalt from West Petrochemical No. 70 Road, and add 35g of diluent in the asphalt hot-melt state (120-140°C) (the diluent is made of self-refined white oil, crude residue, and processed light oil at a ratio of 1:1: 1 mass ratio mixing), mechanical stirring (about 10 minutes) after mixing evenly, add soap liquid at 50-70°C, and then emulsify in asphalt emulsification equipment (colloid mill) to obtain the finished high-permeability anion-modified emulsified asphalt. The soap liquid is composed of 500g water, 10g emulsifier (the emulsifier is mixed with sodium cetyl sulfonate and sodium α-olefin sulfonate in a mass ratio of 3:2), 2g stabilizer (the stabilizer is composed of sodium hydroxide and zinc oxide Mixed according to the mass ratio of 1:1) and 38g of anionic SBR latex 6516 and 15g of alkylphenol polyoxyethylene ether (penetrant JFC-M of Jiangsu Haian Petrochemical Plant), and the obtained product meets the requirements of JTG F40-2004 specifi...

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Abstract

The invention provides a high-permeability anion modified emulsified asphalt and a preparation method thereof. The high-permeability anion modified emulsified asphalt comprises asphalt, diluents, emulsifiers, penetrants, water, stabilizers and anion SBR (styrene-butadiene rubber) latex. The preparation method includes controlling proportioning and processing temperature of the materials and then emulsifying through a latex mill so as to obtain finished products. The prepared emulsified asphalt has good stability and strong permeability, and can meet the specification requirement of permeating a base by the depth of 5-10mm. The diluents are mixtures of industrial byproducts such as crude residual oil, white oil, processing light oil and the like which are distilled and extracted from crude oil or petroleum, and are high in ignition point, low in volatility and low in price, and therefore, the prepared high-permeability anion modified emulsified asphalt is environment-friendly and low-cost. In addition, owning to the compounded emulsifiers, emulsion performance is improved; and owning to the penetrants which are selected through relative permeability test, capillary permeability of the emulsified asphalt is improved.

Description

technical field [0001] The invention relates to a permeable layer anion emulsified asphalt for roads and a preparation method thereof, in particular to a highly permeable anion modified emulsified asphalt and a preparation method thereof. Background technique [0002] my country's "Technical Specifications for Highway Asphalt Pavement Construction" (JTGF40-2004) stipulates that during the construction of asphalt pavement, a permeable layer must be set on the semi-rigid base, that is, sprayed asphalt (commonly known as permeable oil), and the penetration depth of the permeable layer Specific regulations are put forward that the penetration depth of the inorganic binder stabilized aggregate base is not less than 5mm, and the penetration depth of the base without binder is not less than 10mm. If the asphalt in the permeable layer cannot penetrate into the base layer, and spread on the surface of the base layer to form only a layer of oil skin, the asphalt in the permeable layer ...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L9/08C08J3/09C08J3/03
Inventor 纪鑫和陈华鑫颜赫黄余阳阳贺孟霜李宝玉李媛王璐尹艳平贾秦龙陈改霞
Owner CHANGAN UNIV
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