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Cold crack pouring asphalt emulsion and preparation method thereof

An asphalt emulsion and cold irrigation technology, which is applied to building components, pavement details, building insulation materials, etc., can solve the problems that the surface of asphalt emulsion cannot be rapidly solidified, the asphalt emulsion does not freeze, and does not deform for a long time, and achieves low cost and penetration. And the effect of good adhesion and good adhesion

Inactive Publication Date: 2008-03-26
李文义
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] According to the problems existing in hot asphalt filling joints, to implement cold filling joints, firstly, solve the fluidity of asphalt emulsion in early spring when the temperature is 0°C to minus 15°C; secondly, solve the problem that the surface of asphalt emulsion cannot solidify quickly after pouring into cracks ;Thirdly, it is necessary to solve the problem of bonding of asphalt to the crack edge of the pavement at low temperature; Fourthly, to solve the problem that the asphalt emulsion does not freeze below zero
Fifth, solve the problem of pressure resistance and long-lasting deformation after filling the joints

Method used

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  • Cold crack pouring asphalt emulsion and preparation method thereof
  • Cold crack pouring asphalt emulsion and preparation method thereof

Examples

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Effect test

Embodiment 1

[0049] Example 1: 50 parts of asphalt, 3 parts of solvent oil, 4 parts of vegetable oil, 1 part of anionic asphalt emulsifier, 8 parts of ethylene glycol, and 24 parts of water.

Embodiment 2

[0050] Example 2: 56 parts of asphalt, 4 parts of solvent oil, 3 parts of vegetable oil, 2 parts of anionic asphalt emulsifier, 9 parts of glycerin, and 22 parts of water.

Embodiment 3

[0051] Example 3: 60 parts of asphalt, 5 parts of solvent oil, 5 parts of vegetable oil, 2 parts of cationic asphalt emulsifier, 10 parts of ethylene glycol, and 30 parts of water.

[0052] The preparation method of the emulsion of the present invention is made up of the following steps:

[0053] A. Put the asphalt in the container and heat it to 120℃

[0054] B. Mix the vegetable oil and solvent oil together, after stirring evenly, pour it into the hot asphalt in stages and quickly stir it evenly;

[0055] C. Add ethylene glycol into water, stir evenly and heat to 55°C;

[0056] D. Pour the asphalt bitumen emulsifier into the water at 55°C, and stir it evenly to form an emulsion;

[0057] E. The blended asphalt and the blended emulsion are processed through the gear pump, the flow meter, and the grease homogenizer respectively. The processed product is the cold-filling asphalt emulsion.

[0058] Anionic or cationic asphalt emulsifier is produced by Shandong Boxing Runda Ch...

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Abstract

The present invention discloses one kind of cold crack pouring asphalt emulsion and its preparation process. The cold crack pouring asphalt emulsion is prepared with asphalt 50-60 weight portions, solvent oil 3-5 weight portions, vegetable oil 3-5 weight portions, anionic or cationic asphalt emulsifier 1-2 weight portions, ethylene glycol or glycerin 8-10 weight portions, and water 20-30 weight portions. The preparation process includes the following steps: 1. heating asphalt to 110-120 deg.c; 2. mixing vegetable oil and solvent oil, and adding the mixture oil into the hot asphalt through stirring; 3. adding ethylene glycol or glycerin into water through stirring and heating to 55-60 deg.c; 4. adding the asphalt emulsifier into water at 55-60 deg.c through stirring to form emulsion; and 5. mixing the emulsion and asphalt mixture. The asphalt emulsion is poured to crack in highway, and has lowered highway maintenance cost.

Description

technical field [0001] The invention relates to a road maintenance material, in particular to a modified asphalt used under low temperature conditions and a preparation method thereof. Background technique [0002] Highway cracks are very serious in northern my country, and it is difficult to deal with cracks. At present, highway cracks are mostly treated by the following methods: [0003] 1. Hot asphalt grouting [0004] In early spring, the temperature is generally around minus 15°C, and the asphalt is placed in an asphalt heating container, heated to 180°C, and then loaded into an asphalt joint truck and transported to the construction site. During transportation, the asphalt should continue to be heated to maintain the asphalt temperature. not fall. When filling the cracks, the asphalt cools rapidly after contacting the pavement cracks, and the asphalt cannot be poured into the cracks (<0.5cm or less), but only a thick and wide layer is covered on the surface of the...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08J3/03E01C11/10
Inventor 李文义辛国树王伟华季连春赵志学韩文起杨志
Owner 李文义
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